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Zelio Logic 2 Smart Relay User Manual
SR2MAN01 11/2007

Table of Contents

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 About the Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Part I Initial Power up and Discovering . . . . . . . . . . . . . . . . . . 11
Chapter 1 Initial Power up and Discovering . . . . . . . . . . . . . . . . . . . . . . . 13
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Presentation of the Smart Relay Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . Characteristics and Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control Keys on the Front Panel of the Smart Relay . . . . . . . . . . . . . . . . . . . . . Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 17 19 20 23

Part II Functions Accessible from the Front Panel . . . . . . . . . 29
Chapter 2 Chapter 3 Chapter 4 Overview of the Functions Accessible from the Front Panel. . . . 31
Functions Accessible from the Front Panel of the Smart Relay . . . . . . . . . . . . . 31

Input/Output Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Inputs-Outputs Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 TEXT and DISPLAY screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

PROGRAMMING Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Rules for Entering Ladder Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method for Entering a Contact or Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Entering a Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Entry of Function Block Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Deletion and Insertion of Diagram Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 43 45 47 49

Chapter 5 Chapter 6 Chapter 7

PARAMETERS Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
PARAMETERS Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

MONITORING Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
MONITORING Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

RUN/STOP Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
RUN/STOP Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3

Chapter 8

CONFIGURATION Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
PASSWORD Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 FILTER Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Zx KEYS Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 WATCHDOG CYCLE Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15

CLEAR PROGRAM Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
CLEAR PROG Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

TRANSFER Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
TRANSFER Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

VERSION Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
VERSION Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

LANGUAGE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
LANGUAGE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

DEFAULT Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
FAULT Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

CHANGE DATE/TIME Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
CHANGE DATE/TIME Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

CHANGE SUMMER/WINTER Menu . . . . . . . . . . . . . . . . . . . . . . 83
CHANGE SUMMER/WINTER Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Part III LD Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Chapter 16 LD Language Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Discrete Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Zx Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Auxiliary Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Discrete (DISCR) Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Fast Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Counter Comparators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 Analog Comparators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Texts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 LCD Screen Backlighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Change to Summer / Winter Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Modbus Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

4

Part IV Creating and Debugging an Application . . . . . . . . . . . 147
Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Chapter 17

Implementing a Basic Application . . . . . . . . . . . . . . . . . . . . . 149
Presentation of Ladder Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the Reverse Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notation Used by the Smart Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Application: Implementing a Two-way Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 150 152 155 157 166 168 170 171 172

Chapter 18

Debugging an Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dynamic Mode Ladder Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dynamic Mode Function Block Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . Dynamic Mode Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Smart Relay Reaction to a Power Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 19 Chapter 20

Backup and Transfer of Ladder Diagrams" . . . . . . . . . . . . . . 175
Saving and Transferring Ladder Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

Sample Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 Specification Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Implementing the Solution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Part V Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Chapter 21 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Smart Relay Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Appendices
Appendix A

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Compatibility between the version of the programming software and the version of the firmware on the smart relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 Compatibility between the memory cartridges and the version of the firmware on the smart relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Index

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

5

Safety Information

§

Important Information
NOTICE Read these instructions carefully, and look at the equipment to become familiar with the device before trying to install, operate, or maintain it. The following special messages may appear throughout this documentation or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.
The addition of this symbol to a Danger or Warning safety label indicates that an electrical hazard exists, which will result in personal injury if the instructions are not followed.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

DANGER
DANGER indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.

WARNING
WARNING indicates a potentially hazardous situation, which, if not avoided, can result in death, serious injury, or equipment damage.

CAUTION
CAUTION indicates a potentially hazardous situation, which, if not avoided, can result in injury or equipment damage.

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PLEASE NOTE

Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material. © 2007 Schneider Electric. All Rights Reserved.

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About the Book

At a Glance
Document Scope This manual describes the use of functions accessible from the front panel of the smart relay. This document is divided into 5 parts and addresses the following topics: Part I: Powering up and Discovering the Smart Relay General presentation of the smart relay Part II: Functions Accessible from the Front Panel Description of the interface and the menus of the smart relay Part III: LD Language Description of automation functions available for programming in LADDER Part IV: Creating, Debugging and Saving an Application Example of programming Presentation of tools for debugging and saving an application Part V: Diagnostics Help for finding solutions to operating problems Validity Note User Comments The information in this manual applies only to smart relays of the Zelio 2 series. We welcome your comments about this document. You can reach us by e-mail at techpub@schneider-electric.com

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Initial Power up and Discovering

I

Presentation
Subject of this Section What's in this Part? This section presents the operation and main characteristics of the smart relay.

This part contains the following chapters:
Chapter 1 Chapter Name Initial Power up and Discovering Page 13

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1

Presentation
Subject of this Chapter What's in this Chapter? This chapter presents the operation and main characteristics of the smart relay.

This chapter contains the following topics:
Topic Safety Presentation of the Smart Relay Front Panel Characteristics and Connections Control Keys on the Front Panel of the Smart Relay Examples Page 14 17 19 20 23

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Safety
Preliminary Advice Preliminary advice and general safety precautions relating to installing smart relays: Remember that only qualified personnel are authorized to implement the smart relay. Read this instruction sheet and the User Guide to learn the procedures prior to installing, wiring, operating, maintaining of controlling the smart relay. The end user should keep this User Guide and the product instructions sheet. Install the smart relay by following the instructions in the instruction bulletin and the User Guide. Improper installation may result in failure or malfunction of the smart relay. Make the necessary ground and short circuit the connections. Check the operating conditions, as described in the User Guide. If you are unsure of the technical characteristics, contact Schneider Electric. Fluctuations or variations in the power supply voltage should not exceed the tolerance thresholds stated in the technical characteristics, as they may lead to operating failures and potentially dangerous situations. Take any steps necessary to ensure that an application interrupted by a power failure continues to operate correctly after restoring power and make sure also that no dangerous situation whatsoever arises. Take any steps necessary to prevent involuntary activation of the relay. Automation and control devices must be installed in areas where they are protected against any risk of involuntary activation. Ensure that all connections to the control system meet applicable safety standards. Ensure that you comply with all applicable standards for emergency stop systems in order to avoid potentially dangerous situations. Ensure that releasing the emergency stop system does not cause the automated system to suddenly restart. Install the smart relay only in environments described in the User Guide. Do not use the smart relay in environments subject to excessive temperatures, elevated relative humidity, condensation, corrosive gases, or excessive shocks. The smart relay should be used in "Pollution level 2" environments. This level defines the effect of pollution on the insulation. Definition of level 2 Pollution: Only non-conductive pollution arises, except for occasional temporary conductivity caused by condensation. Do not use smart relays in environments lower than those specified in IEC Standard 60664-1. Use appropriate wires according to current and voltage requirements. Tighten the screws of the terminal according to the specified torque. Use an IEC 60127 approved fuse, in conformity with the requirements for current and voltage, to protect the power line and output circuits. This is not required when a device including a smart relay is intended for Europe. Use an EU-approved switch. This is not required when a device including a smart relay is intended for Europe.

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DANGER
RISK OF ELECTRIC SHOCK, EXPLOSION OR ELECTRIC ARCING Power off the smart relay prior to installing, removing, wiring, maintaining or inspecting a smart relay system. Failure to follow this instruction will result in death or serious injury.

WARNING
RISK OF EXPLOSION Precautions: Compliant with standard CSA C22.2 No 213: This equipment is designed for use in Class 1, Division 2, Groups A, B, C, D or in non-dangerous locations only. Replacement of components may compromise the suitability to this specified environment. Ensure that the power voltage and its tolerances are compatible with those of the smart relay. Do not disconnect the equipment as long as the power supply has not been cut off or the zone is not safe. This product contains a battery. Do not place the smart relay in fire. Failure to follow this instruction can result in death, serious injury, or equipment damage.

WARNING
RISK OF ELECTRIC SHOCK OR FIRE Precautions: The smart relay is solely intended for installation in an enclosure. Do not install the smart relay outside of an enclosure. Ensure that no metal fragment or wiring material falls into the enclosure of the smart relay. Foreign bodies may lead to fire, material damage or malfunction. Failure to follow this instruction can result in death, serious injury, or equipment damage.

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WARNING
INVOLUNTARY OPERATION OF EQUIPMENT Precautions: Power off the smart relay prior to installation, deinstallation, wiring, maintenance or operation of the unit. The emergency stop and the locking circuits should be configured in the software program of the smart relay. In the event of failure of the relays or transistors in the output modules of the smart relay, the outputs should remain activated or deactivated. For output signals that might lead to serious accidents, install a control circuit external to the smart relay. Install the modules according to the environmental operation conditions specified in the instruction bulletin. Do not attempt to dismantle, repair or modify the smart modules. Use an IEC 60127 approved fuse, in conformity with the requirements for current and voltage, to protect the power line and output circuits. Failure to follow this instruction can result in death, serious injury, or equipment damage.

WARNING
RISK OF UNEXPECTED OPERATION Special case of the use of the SR2COM01 modem communication extension. Sending commands may lead to modification of the status of smart relay outputs or accidental enabling of controlled equipment. It is important to: Know how the commands will affect the process or the controlled equipment, Take any preventive measures necessary to ensure safety when making modifications. Failure to follow this instruction can result in death, serious injury, or equipment damage.

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Presentation of the Smart Relay Front Panel
Introduction Smart relays are designed to simplify the electrical wiring of intelligent solutions. A smart relay is very simple to implement. Its flexibility and its high performance allow users to save significant amounts of time and money. This User’s Guide is intended for people who do not have an in-depth knowledge of automation systems and who would like to be able to implement smart relays. Description of the Smart Relay Front Panel The illustration below presents the elements of the front panel of the smart relay: 1 2 3 4
I1 I2 I3 I4 IB

5
IC ID IE

+

-

24 VDC

Inputs I1...I4 24 VDC

IB... IE Analog or 24 VDC

SR2 B122BD

1234

BCDE STOP LD THU 25 SEP 16 : 40 1234
Menu / OK

6

7 10 8

Outputs

Q1 ... Q4: Relay 8A

1
Q1

2

1 Q2

2

1 Q3

2

1 Q4

2

9

1

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Prompt 1 2 3 4 5 6 7 8 9 10

Element Retractable mounting feet. Screw terminal block for the power supply. LCD display, 4 lines, 18 characters. Screw terminal block for discrete inputs. Screw terminal block for analog inputs. 0-10 Volts, usable in discrete input mode depending on model. Slot for backup memory or PC connection cable. Shift key (white). Menu/OK key (green) for selection and confirmation. Relay output screw terminal block. Navigation keys (gray) or after configuring Z pushbuttons.

Description of the LCD

The illustration below presents an example of LCD display elements when displaying the INPUT-OUTPUT screen: 2 1 2 3 4 5

1234 THU 25 SEP 1234
1 2

BCDE STOP LD 16 : 40

3

4 Menu / OK

Prompt 1 2 3 4 5

Element Input status* display (B...E represent the analog inputs, also may be used as DISCR). Display of the operating mode (RUN/STOP) and programming mode (LD/FBD). Display of the date (day and time for products with clock). Output status display. Contextual menus / pushbuttons / icons indicating the operating modes.

* An ACTIVE input or output is displayed in reverse video.

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Characteristics and Connections
Introduction Recommended connection Here is detailed information on the characteristics of DC smart relay connections. It is recommended to connect the smart relay to a regulated DC power supply:

Regulated
220 V

/=
ABL7R

24 V=

RECOMMENDED

Possible Connection

It is possible to connect the smart relay to a rectified filtered regulated power supply:

Rectified and filtered
U max

POSSIBLE

U min

Provided that it verify the following characteristics, according to the type of smart relay:
SR2 ... BD U max < 30 V U min > 19.2 V SR2 ... JD U max < 14,4 V U min > 10.4 V

Prohibited Connection

It is prohibited to connect the smart relay to a rectified non-filtered power supply:

Rectified non filtered

PROHIBITED

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Control Keys on the Front Panel of the Smart Relay
Description The keys located on the front panel of the smart relay are used to configure, program and control the application and monitor the application's progress. Illustration:

2

PROGRAMMING PARAMETERS RUN / STOP CONFIGURATION

Menu / OK

Note: The LCD screen is lit for 30 seconds when the user presses any of the buttons on the front panel.

Shift Key

The Shift key is the white key located on the right side of the LCD screen. When the Shift key is pressed, a contextual menu is displayed above the Z keys (Ins, Del, Param, etc.).

Menu/OK Key

The Menu/OK key is the green key located below the LCD screen on the right side. This key is used for all confirmations: Menu, sub-menu, program, parameter, etc.

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Zx Keys

The Zx keys are the gray keys aligned from left (Z1) to right (Z4) and located under the LCD. The arrows indicating the movement direction associated with navigation are marked above the keys. The navigation keys are used to move left or right, down or up. The position on the screen appears as a flashing zone: Square for a position that corresponds to a contact (only in programming mode), Round for a link (only in programming mode). Note: When the keys may be used for other actions apart from navigation, a contextual menu bar is displayed (e.g.: 1, 2, 3 and 4 as Zx-type keys).

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Contextual Menus

When the cursor is placed on a modifiable parameter, if the Shift key is pressed, a contextual menu appears. Illustration: ins. + Param Del. Menu / OK Using the contextual menu functions: + / -: Used to scroll through the various possible values of the selected field (types of inputs, outputs, automation functions, numbers, numerical values, etc), Ins.: Inserts a line, Del.: Deletes the selected element, or the entire line if it is empty, Param.: Displays the specific parameter screen for the automation function (visible only if the automation function contains a parameter), ← ↑ ↓ →: Direction of the connection (visible only if the cursor is placed over a link box), 1 2 3 4: This line appears when the keys are used as Zx key-type inputs in a program. Illustration:

Menu / OK The key indicates that the program is password-protected. Illustration:

Menu / OK

1

2

3

1: Indicates the state of the smart relay. In RUN it is in motion, in STOP it is immobile. 2: Indicates that faults have appeared (see FAULT menu). 3: The smart relay is physically connected to the programming software.

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Examples
Introduction Language Selection We will now see two examples of how to use the smart relay’s keys. Example 1: Here are details on how to select the language of the smart relay:
Step Action 1 Powering up On initial powering-up, the INPUT-OUTPUT screen is displayed (See: Inputs-Outputs Screen, p. 34). By default, the selected language is English. View: 1234 BCDE STOP LD FRI 25 NOV 16 : 40 1234

2

Menu / OK
From the INPUT-OUTPUT screen, enter the MAIN menu , then go to the CONFIGURATION menu LANGUAGE, by pressing 7 times on the down navigation

key View:

.

CLEAR PROG TRANSFER VERSION LANGUAGE

Note: the selected command flashes.

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Step Action 3 Enter in the language selection menu.

Menu / OK

View: ENGLISH FRANCAIS DEUTSCH ITALIANO

Note: The activated option flashes and it is also indicated by a black diamond. 4 Select and confirm the language (the selection is shown in flashing text).

Menu / OK or then

The Menu/OK button is used to confirm the selection of the new language. The display returns to the MAIN menu when the smart relay is in STOP mode. View: CLEAR PROG TRANSFER VERSION LANGUAGE

24

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Initial Power up and Discovering Step Action 5 Return to the INPUT-OUTPUT screen using the left navigation key.

View: 1234 BCDE STOP LD FRI 25 NOV 16 : 40 1234

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Modification of Date and Hour

Example 2: Here are details on procedure to follow to modify the date and time of the initial power up or following a long lasting power failure.
Step Action 1 From the INPUT-OUTPUT screen, enter the MAIN menu, then go to the CHANGE D/ H menu:

Menu / OK then
View: VERSION LANGUAGE DEFAULT CHANGE D/H

9 times in LD mode 7 times in FBD mode

2

Enter the date and hour configuration menu:

Menu / OK

View: CHANGE D/H THU 07 JUL 2003 16 : 27 30 s CAL 0 2 secs / WK

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Initial Power up and Discovering Step Action 3 Select the parameter to modify using the arrows (the selection is highlighted by the blinking of the parameter):

or
Modify the parameter using the navigation keys:

or
Then confirm with the Menu/OK key:

+

Menu / OK

The Menu/OK button is used to confirm the modifications. The display returns to the MAIN menu when the smart relay is in STOP mode). View: VERSION LANGUAGE DEFAULT CHANGE D/H

4

Return to the INPUT-OUTPUT screen

View: 1234 BCDE STOP LD FRI 25 NOV 16 : 40 1234

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27

Functions Accessible from the Front Panel

II

At a Glance
Subject of this Section What's in this Part? This section describes the functions that can be accessed from the front panel of the smart relay. This part contains the following chapters:
Chapter 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Chapter Name Overview of the Functions Accessible from the Front Panel Input/Output Screen PROGRAMMING Menu PARAMETERS Menu MONITORING Menu RUN/STOP Menu CONFIGURATION Menu CLEAR PROGRAM Menu TRANSFER Menu VERSION Menu LANGUAGE Menu DEFAULT Menu CHANGE DATE/TIME Menu CHANGE SUMMER/WINTER Menu Page 31 33 39 51 53 55 57 65 67 73 75 77 81 83

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29

Overview of the Functions Accessible from the Front Panel

2

Functions Accessible from the Front Panel of the Smart Relay
Description From the front panel of the smart relay, you may: Program (in LD mode), Configure, Control the application, Monitor the performance of the application. Illustration: 2

PROGRAMMING PARAMETERS RUN / STOP CONFIGURATION

Menu / OK

The line flashes to indicate where you are positioned. The up triangle on the right side of the LCD screen indicates that possible up options exist. The down triangle indicates that possible down options exist. To return to the previous menu, press left navigation key. Note: The LCD screen is lit for 30 seconds when the user presses any of the buttons on the front panel.

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Overview of the Functions Accessible from the Front Panel

Managing Menus

The inputs-outputs screen is displayed by default whether the mode be LD or FBD. Pressing the Menu/OK key switches the display from the inputs-outputs screen to the main menu. The menu on the first row which is selected by default (flashing). The and navigation keys can be used to place the cursor over the other menus. Press the green Menu/OK key to display the screen corresponding to the selected menu or to move onto the first sub-menu.

Differences Between LD and FBD Modes

Certain menus are specific to either LD or FBD mode.
Menu PROGRAMMING MONITORING PARAMETERS RUN / STOP CONFIGURATION PASSWORD FILTER Zx KEYS WATCHDOG CYCLE CLEAR PROG. TRANSFER VERSION LANGUAGE FAULT CHANGE D/T CHANGE SUMM/WINT LD FBD

Configuring Extensions

Extensions added to the smart relay may only be configured from the programming software. See on-line help of the programming software for more information.

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Input/Output Screen

3

At a Glance
Subject of this Chapter What's in this Chapter? This chapter describes the characteristics of the input-output screen.

This chapter contains the following topics:
Topic Inputs-Outputs Screen TEXT and DISPLAY screen Page 34 36

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Input/Output Screen

Inputs-Outputs Screen
Description The inputs-outputs screen is the highest-level interface. It is displayed by default, when no (TEXT or DISPLAY) display function is active and regardless of: The programming type: LD or FBD, the mode: STOP or RUN. Illustration: 2 3 2 1 4 5 6

123456 STOP LD MON 22 SEP 15:51 1234
2 Menu / OK

The inputs-outputs screen can be used to view: 1. 2. 3. 4. 5. 6. the state of the inputs: 1 to 9, A to P, The mode used: LD/FBD, The Operating mode: RUN / STOP, The date and time for products with a clock, the state of outputs: 1 to 9, A to G, Z push buttons: 1 to 4.

In Simulation mode or Monitoring mode when the program is in RUN, the active states of the inputs and outputs are indicated in reverse video.

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Input/Output Screen

Access to the Main Menu

Pressing the Menu/OK key switches the display from the inputs-outputs screen to the main menu: PROGRAMMING (LD STOP mode), MONITORING (LD RUN mode), PARAMETERS, RUN / STOP, CONFIGURATION (STOP mode), CLEAR PROG. (LD STOP mode), TRANSFER (STOP mode), VERSION, LANGUAGE, FAULT, CHANGE D/T, CHANGE SUMM/WINT. The display automatically returns to the inputs-outputs menu on exiting all other menus and sub-menus.

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Input/Output Screen

TEXT and DISPLAY screen
Description The display functions are used to display text or numerical values (current value, preset value, etc.) on the LCD display instead of the INPUTS-OUTPUTS: In LD mode: A TEXT function is active, in FBD mode: A DISPLAY function is active. Illustration: 2

Value counter1
C1 C = 00001

Date 28/11/2003
2 Menu / OK If several display functions are active simultaneously: In LD mode: The highest block number is displayed. There are 16 TEXT-type blocks numbered from 1 to 9 then from A to G, In FBD mode: The superposition of all of the FBD DISPLAY screens is displayed, for up to 32 blocks. If more than 32 FBD DISPLAY blocks are active, the screens of the 32 FBD DISPLAY blocks with the lowest numbers are superposed. Note: The display functions are programmable only from the programming software (see the on-line help for the programming software for more information).

Switching Between the Screens

Switching between the screens It is however possible to go from the TEXT (LD) or DISPLAY (FBD) screen to the INPUTS-OUTPUTS screen and vice-versa. To do this, proceed as follows:
Step Action Step Press and hold down the Shift key and press the Menu/OK key.

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Input/Output Screen

Modify Displayed Values

In RUN mode, when the TEXT / DISPLAY screen is displayed, it is possible to modify, from the front panel, the displayed values whose modification was authorized in the block function parameters window. To do this, proceed as follows:
Step Action 2 Step Press the Shift key (white key) to display the contextual menu. Result: Param is displayed at the bottom of the screen. Press the key (without releasing the Shift key) to display the contextual menu. Result: The parameter which can be modified flashes and the following contextual menu is displayed:

-

+ Menu / OK

3 4 5

Select the parameter to be modified using the navigation keys and from the contextual menu (the value which are available for modification flash). Modify the parameter value with the + ( ) and - ( ) keys from the contextual menu. Confirm the changes by pressing the Menu/OK key. Result: The display returns to the INPUTS-OUTPUTS screen or the TEXT / DISPLAY screen.

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PROGRAMMING Menu

4

Presentation
Subject of this Chapter This chapter describes the characteristics of the PROGRAMMING menu specific to LD mode / smart relay in STOP mode. This function lets the user enter the ladder diagrams that will work on the smart relay. This program is written only using a ladder diagram LD. Illustration: 2

I1 I2 I1

RT1 M3 T1 SM1 TT1
Menu / OK

Note: The smart relays to which have been added an Input/Output extension are programmable only in FBD mode from the programming software. See on-line help of the programming software for more information.

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PROGRAMMING Menu

What's in this Chapter?

This chapter contains the following topics:
Topic Rules for Entering Ladder Diagrams Method for Entering a Contact or Coil Entering a Link Entry of Function Block Parameters Deletion and Insertion of Diagram Lines Page 41 43 45 47 49

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PROGRAMMING Menu

Rules for Entering Ladder Diagrams
Description A smart relay allows you to enter 120 line Ladder diagrams. The smart relay’s display screen is used to display these lines, 4 at a time, in the following manner: 1 2 3

I1-H1-C1-M1-T2-CC1 I2 Z1 ----------Z3
4
Prompt 1 2 3 4 Element Column reserved for contacts (conditions). Column reserved for contacts (conditions) and for links. Column reserved for coils (actions). Column reserved for links.

Each line comprises 5 fields each with 2 characters reserved for contacts (conditions). The 4 central columns can also accept links. The last three-character column is reserved for coils (actions). Links must be entered between the contact and coil columns. A ladder diagram is entered into the smart relay using the front panel keys (see Control Keys on the Front Panel of the Smart Relay, p. 20).

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PROGRAMMING Menu

Data Entry Rules

Make sure you respect the following rules when you enter a ladder diagram:
Rules Each coil must only be entered once in the right hand column Incorrect Correct

I1-------------[Q1 I2-I3----------TT1 T1-------------[Q1 Z1

I1-------------[Q1 T1 I2-I3----------TT1 Z1 I1-------------TT1 T1-------------[Q1 I3-T1----------[M2 I1-M2----------[Q2

Elements used as contacts may be entered as many times as necessary in the 5 left hand columns. Links must always run from left to right.

I1-I2-I3 -I4-I5-I6-[Q1

I1-I2-I3-------[M1 M1----I4-I5-I6-[Q1

If S coils (SET) are used in If no R (Reset) coils are used, a diagram, also use an R the corresponding coil will (Reset) coil. always be set to 1.

An R (Reset) coil must be used for reset purposes.

Note: Smart relays run programs from top to bottom and from left to right.

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PROGRAMMING Menu

Method for Entering a Contact or Coil
Description

Note: Accessible only in LD mode / smart relay in STOP mode. This section describes the procedures for performing the following operations: Entering an element, Modifying an element, Deleting an Element. This is valid for : contact or coil elements, whether the parameters can be set or not.

Entering an Element

When entering an element, the following rules must be observed: Contact: In any column except the last, Coil: Only in the last column. The presence of a square, flashing cursor means an element can be inserted. Entry procedure:
Step Action 1 Place the flashing cursor at the required location. The navigation keys can be used move the cursor in the direction of the arrows on the navigation keys . Illustration:

2

Press the Shift key to display the contextual menu. Illustration:

ins.

-

+

Del. Menu / OK

By simultaneously pressing Shift and one of the (- and +) keys, the first letter of the element is inserted: I for a contact and Q for a coil, followed by the number 1. 3 Choose the type of element desired by pressing simultaneously on Shift and + or -. This makes the different types of elements scroll down cyclically, in the following order: For the contacts: I, i, Z, z, M, m, Q, q, T, t, C, c, K, k, V, v, A, a, H, h, W, w, S, s. For the coils: M, Q, T, C, K, X, L, S. See the chapterLD Language Elements, p. 87.

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PROGRAMMING Menu

Step Action 4 5 Release the Shift key to have access to the navigation keys: . Pressing the key places the cursor over the corresponding number 1. Simultaneously hold down the Shift and + keys to increment the number of the element (2, 3, 4,..., 9, A, etc.). Note: The numbers for functional blocks are limited to the number of blocks of the type available in the smart relay. In the case of extensible smart relays, the inputs and outputs numbers are used to program the extension to maximum size. In entering a contact, once this step is completed, the entry is terminated. In entering a coil, you must additionally select the function of the coil. Release the Shift key to have access to the navigation keys: Steps 7 to 9 are only necessary when entering a coil. Position the cursor on the function of the coil by pressing twice on the . key.

6 7 8 9

Select the desired function by pressing simultaneously on the Shift key and the + or - key. This will scroll through the different coil functions available. Release the Shift key to have access to the navigation keys: .

Note: Confirming some function block coils will bring-up a function block parameter setting screen.

Modifying an element,

To modify an existing control diagram element, simply: Position the pointer over the element to modify: Step 1 in the previous table, Select the desired new element: Steps 3 to 6. Status of contacts on program initialization: A contact in normally-open mode (direct state) is inactive, A contact in normally-closed mode (reverse state) is active,

Initialization

Deleting an Element

To delete an element, simply: Place the cursor over the element to delete: Step 1, Simultaneously press the Shift and Menu/OK keys. Two scenarios are possible, depending on the position of the cursor at the time of the deletion: Cursor over an element: the element is deleted, Cursor over an empty position of the line: the whole line is deleted. Note: Generally, the deleted element must be replaced by a link.

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PROGRAMMING Menu

Entering a Link
Description

Note: Accessible only in LD mode / smart relay in STOP mode. This section describes the procedures for performing the following operations: Entering links between elements, Deleting links between elements, Replacing a link with a contact.

Entering a Link

Links are entered exclusively using the round flashing cursor. Entry procedure:
Step Action 1 Place the flashing cursor at the required location. The navigation keys can be used move the cursor in the direction of the arrows on the navigation keys Illustration: .

2

Press the Shift key to display the contextual menu. Illustration:

Del. Menu / OK
3 Trace connections by simultaneously pressing the Shift key and the navigation keys: ← ↑ ↓ →. Shift and → to trace a connection to the position of the next contact or to the coil at the end of the line. Shift and ↑ ↓ to trace perpendicular connections to the previous or next line. Release the Shift key to have access to the navigation keys: .

4 5

Repeat the operation as many times as necessary to link the elements together according to your requirements.

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PROGRAMMING Menu

Modifying a Link

To modify an existing link, simply: Place the cursor over the link to modify: step 1 Modify the link: Steps 2 to 5.

Deleting a Link

To delete a link, simply: Place the cursor over the element to delete: step 1. Simultaneously press the Shift and Menu/OK keys. Two scenarios are possible, depending on the position of the cursor at the time of the deletion: Cursor over a link: The link is deleted, Over an empty position of the line: The whole line is deleted.

Replacing a Link with a Contact

To replace a link with a contact, simply: Place the cursor (flashing square) over the link to transform: step 1. Follow the element entry (see Method for Entering a Contact or Coil, p. 43) procedure: Steps 3 to 6.

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PROGRAMMING Menu

Entry of Function Block Parameters
Description

Note: Accessible only in LD mode / smart relay in STOP mode. When entering a control diagram, the parameters of the configurable automation functions must be completed. The automation functions with parameters are the following: Auxiliary relays (see Auxiliary Relays, p. 93) (latching), Discrete Outputs (see Discrete (DISCR) Outputs, p. 98) (latching), Clocks (see Clocks, p. 134), Analog Comparators (see Analog Comparators, p. 129), Timers (see Timers, p. 101), Counters (see Counters, p. 111), Fast counters (see Fast Counter, p. 118).

Accessibility of parameters

Function block parameter setting can be accessed: When entering the command diagram line, From the PARAMETERS menu if the block has not been padlocked.

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PROGRAMMING Menu

Entering Parameters on Creation of the Block

Parameters are entered in the same way, whatever the parameters screen:
Step Action 1 Enter the desired automation function: Step 1 of the element entry (see Method for Entering a Contact or Coil, p. 43) procedure. When the function has parameters, Param appears in the contextual menu (when the Shift key is pressed). Illustration:

ins.

-

+

Param

Del. Menu / OK

2 3 4 5

Press and hold down the Shift key and press on Param (key Result: The function’s parameter screen appears.

). .

Use the navigation keys to move to the cursor over the modifiable parameters: Modify the value of the parameter using the + and - keys, holding down Shift.

Confirm the modifications by pressing Menu/OK, which will open the confirmation window. Confirm again by pressing the Menu/OK key to save.

Modifying the Parameters of Existing Blocks

To modify the parameters of an existing element, simply:
Step 1 2 3 Action Use the navigation keys to move the cursor over the element to modify: step 1 of the element entry (see Method for Entering a Contact or Coil, p. 43) procedure. At the same time, hold down Shift and the Param key to open the parameter window. Carry out steps 3 to 5 above.

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PROGRAMMING Menu

Deletion and Insertion of Diagram Lines
Deletion

Note: Accessible only in LD mode / smart relay in STOP mode. Diagram lines are deleted line-by line. The procedure is the following:
Step 1 2 3 Action Place the cursor over the line to delete. Delete all the elements in the line (see Method for Entering a Contact or Coil, p. 43): (Links, contacts and coils) to obtain an empty line. Press the Shift key to display the contextual menu. Illustration:

ins.

-

+

Del. Menu / OK

Simultaneously pressing Shift and Del opens the confirmation window. 4 Confirm by pressing Menu/OK.

Note: It is possible to delete all diagram lines contained in the smart relay. In order to do this, select the CLEAR PROG. option from the main menu, and confirm the deletion of all the control diagram lines.

Insertion

The procedure is the following:
Step 1 2 3 Action Place the cursor over the line located immediately below the line to create. Press the Shift key to display the contextual menu. Press the Ins key (while holding down the Shift key) to create the line.

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PARAMETERS Menu

5

PARAMETERS Menu
Description This menu is used to enter and modify the application parameters directly on the screen using the smart relay keys. This function can be accessed in the two modes: LD and FBD, but the contents will be specific to the mode used. If there are non-locked parameters to display they are listed in the window; otherwise a NO PARAMETER message appears. LD mode Functions with parameters in LD mode: Auxiliary relays (see Auxiliary Relays, p. 93) (latching), Discrete Outputs (see Discrete (DISCR) Outputs, p. 98) (latching), Clocks (see Clocks, p. 134), Analog Comparators (see Analog Comparators, p. 129), Timers (see Timers, p. 101), Counters (see Counters, p. 111), Fast counter (see Fast Counter, p. 118). Only those functions used in the program and with parameters are listed in the PARAMETERS menu.

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PARAMETERS Menu

FBD mode

Functions with parameters in FBD mode: Numerical Constant-Type Inputs, Clocks, Gain, Timers: TIMER A/C, TIMER B/H, TIMER Li, Counters: PRESET COUNT, Fast counter, CAM block. To access the parameters of the FBD blocks, you must know end enter the block number. This number appears in the programming software on the wiring sheet at the top right corner of the block. Only those functions used in the program and with parameters are listed in the PARAMETERS menu.

Parameter Modification

Parameter modification procedure:
Step 1 Action Place the cursor over the PARAMETERS menu in the main menu (PARAMETERS flashing) and confirm by pressing the Menu/OK button. Result: The parameters window opens to the first parameter. Select the function to modify. To access the required function, scroll through the function block numbers (navigation keys and ) until you reach the right one. Select the parameter to modify. The and keys are used to place the cursor over the parameter to modify. Modify the parameter using the + and - keys ( and ) of the contextual menu. Confirm the modifications by pressing Menu/OK, which will open the confirmation window. Confirm again twice by pressing Menu/OK to save. Result: The display returns to the INPUTS-OUTPUTS screen in RUN mode and to the MAIN menu in STOP mode.

2

3 4 5 6

Parameters in RUN Mode

It is therefore possible to modify parameters in RUN mode dynamically as long as they are not locked. The modifications can be made: From the PARAMETERS (see PARAMETERS Menu, p. 51) menu, From the MONITORING (see MONITORING Menu, p. 53) (LD) menu: Move the pointer over the function to be modified using the navigation keys and open the parameters window from the contextual menu (Shift key).

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MONITORING Menu

6

MONITORING Menu
Description

Note: Accessible only in LD mode / smart relay in RUN mode. MONITORING mode can be used to obtain a dynamic view of the state of the smart relay inputs/outputs. In this mode the wiring diagram appears as it does in the PROGRAMMING (see PROGRAMMING Menu, p. 39) menu (smart relay in STOP mode), but appear in reverse video when inputs or outputs are activated (white on black background). Illustration: I 1-i2----------[Q1 IB-------------TT1 T1-------------[Q2 H1-------------[M1 This mode is also used to dynamically modify the values of automation function parameters if these are not locked.

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MONITORING Menu

Parameter Modification

To modify the parameters, proceed as follows:
Step Action 1 2 3 4 5 6 7 Use the navigation keys to move the cursor over the element to modify: Step 1 of the element entry (see Method for Entering a Contact or Coil, p. 43) procedure. At the same time, hold down Shift and the Param key to open the parameter window. Use the navigation keys to move to the cursor over the modifiable parameters: Change the parameter value using the keys + and -. Confirm the modifications by pressing Menu/OK, which will open the confirmation window. Confirm a second time by pressing Menu/OK to save. Confirm again with Menu/OK. Result: Return to the parameter screen. Confirm again with Menu/OK. Result: Return to the LD diagram screen. .

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RUN/STOP Menu

7

RUN/STOP Menu
Description This function is used to start or stop the program in the smart relay: In STOP mode: The program is stopped and the outputs disabled, In RUN mode (with or without initialization of latching parameters): The program is executed. Startup In STOP mode, when accessing the RUN/STOP menu, the interface proposes the following three choices for starting the program: WITH LATCHING INIT: All current values (counters, timers, etc.) are reset to zero before the program starts (default selection), WITHOUT LATCHING INIT: Current values for which the Latching option has been activated are kept, NO: The program has not been started. Illustration: 2

RUN PROG. WITH LATCHING INIT WITHOUT LATCHING INIT NO
Menu / OK

The navigation keys

are used to change the selection.

When the mode has been validated with the Menu/OK key, the display moves to the INPUT-OUTPUT screen.

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RUN/STOP Menu

Off

In RUN mode, when accessing the RUN/STOP menu, the interface asks the user to confirm the request to stop the program: YES: The program stops (selected by default), NO: The program does not stop. Illustration: 2

STOP YES NO

PROG.

Menu / OK

The navigation keys

are used to change the selection.

When the mode has been confirmed with the Menu/OK key, the display moves to the INPUT-OUTPUT screen. Smart Relays Without Screen For smart modules without screen, a green LED located on the front panel of the module is an indicator light: If the LED flashes slowly (3 Hz), the module is in RUN mode (even if there is nonblocking fault). If the LED flashes rapidly (5 Hz), the module is in STOP mode with fault. If the LED stays lit, the module is powered-up and in STOP mode. Note: On power up, the smart relay is in RUN mode, unless there is a blocking fault. Note: To release a blocking fault, power off the module, then power it up again.

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CONFIGURATION Menu

8

Presentation
Subject of this Chapter The CONFIGURATION menu provides access to the following 4 functions: PASSWORD, FILTER, Zx KEYS, WATCHDOG & CYCLE This chapter describes the characteristics of these functions. Note: Use the navigation key to return to the main menu . Note: If the program is password-protected, (key displayed in the contextual menu), the user must enter the password before any action can take place in the sub-menus. Note: The CONFIGURATION menu is only available in STOP mode.

What's in this Chapter?

This chapter contains the following topics:
Topic PASSWORD Menu FILTER Menu Zx KEYS Menu WATCHDOG CYCLE Menu Page 58 61 62 63

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CONFIGURATION Menu

PASSWORD Menu
Description If the program is password-protected (key icon appears), the user must enter the password to perform certain operations. The password protects access to the following menus: PROGRAMMING (LD STOP mode), MONITORING (LD RUN mode), CONFIGURATION (STOP mode), CLEAR PROG. (LD STOP mode), MODULE TRANSFER > MEM (STOP mode). MEM TRANSFER > MODULE (LD STOP mode depending on the choice of the programmer (1), FBD STOP mode). Note: (1) The programmer can configure the application to protect access to this menu in LD mode, . Illustration: 2

PASSWORD ENTER

0 0 0 0

-

+ Menu / OK

Activating the password also involves usage limitations in the programming software: Modification of the program contained in the smart relay, Rereading of the program contained in the smart relay, Destruction by transferring another program. Monitoring, Note: If you lose a password, the solution is to overwrite the program from the programming software; see the on-line help of the programming software. Transferring/Clearing the program, Module/Update module Firmware, for more information about the compatibility of the firmware, see Compatibility between the version of the programming software and the version of the firmware on the smart relay, p. 234.

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CONFIGURATION Menu

Note: It is possible to quit the screen without entering a password by using a combination of the Shift key (white key) and the Menu/Ok key (green key). Note: To return to the main menu from the CONFIGURATION menu, use the navigation key .

Entering Password

Initially, the key is not displayed and each digit is set to 0. The ENTER message appears in the window. Entry procedure:
Step Action 1 2 3 4 Use the navigation keys to select the digit to enter: . Select the value of the digit using the + and - keys of the contextual menu. Confirm the password with the Menu/OK key, which opens the confirmation window. Confirm again with the Menu/OK key. Result: The display returns to the MAIN menu.

Note: Henceforth the key is displayed in the contextual menu line.

Removing Password

To cancel the password, follow the same procedure used to enter it. 2

PASSWORD CLEAR 1/5

0000

-

+ Menu / OK

Initially, the key icon is displayed, meaning: Smart relay protected. The message CLEAR and the number of attempts 1 / 5 appear in the window.

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CONFIGURATION Menu

The following scenarios may arise: Password correct: The password is then inhibited, and the smart relay returns to the PASSWORD menu, Password incorrect: The CLEAR counter is incremented. Illustration: 2

PASSWORD CLEAR 2/5

0000

-

+ Menu / OK

If an incorrect password is entered 5 times consecutively, the security function is locked for 30 minutes. During this period, if the power supply to the smart relay fails, the downcount will start again on power up. Illustration: 2

PASSWORD CLEAR ERROR 5/5 >>> 30MINUTES

Menu / OK Modifying Password To modify the password, simply cancel the old password and enter a new one.

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CONFIGURATION Menu

FILTER Menu
Description This function is used to detect more quickly any changes in states of Discrete inputs. Two choices are available: Fast, Slow. Response time:
Filtering Slow Fast Commutation ON → OFF OFF → ON ON → OFF OFF → ON Response time 5 milliseconds 3 milliseconds 0.5 milliseconds 0.3 milliseconds

This selection can only be made when the smart relay is in STOP. By default, the smart relays are configured in SLOW. Note: This function is available on smart relays with a direct voltage power supply. Note: to return to the main menu from the CONFIGURATION menu, use the navigation key .

Filter-Type Selection

The current type is indicated by the selection symbol (black diamond). Procedure for selection of filter type:
Step Action 1 2 Select the type of filtering using the keys (the selection will flash). Confirm with Menu/OK. Result: the display returns to the MAIN menu.

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CONFIGURATION Menu

Zx KEYS Menu
Description

Note: Only accessible in LD mode. The Zx KEYS option is used to activate or deactivate the use of the navigation keys as pushbuttons. Different functions can be obtained depending on the state of this option: Inactive: The keys are only available for setting, configuring and programming the smart relay. Active: they can also be used in a control diagram. In this configuration, they operate as pushbuttons: Zx keys (see Zx Keys, p. 91), without the need to use a terminal input contact. Note: To return to the main menu from the CONFIGURATION menu, use the navigation key .

Zx Keys in RUN Mode

By default, the Zx keys are used as navigation keys. In RUN mode, when the inputs-outputs screen, TEXT screen or DISPLAY screen is active, the numbers of the Zx keys used in the program are displayed in the contextual menu line. To activate the key, simply select the required key Illustration: 2 .

123456 STOP LD MON 22 SEP 15:51 1234
1 3 Menu / OK

Note: The function is inactive in Parameters mode, Monitoring and all the function block parameter and configuration screens.

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CONFIGURATION Menu

WATCHDOG CYCLE Menu
Description The duration of a program cycle depends on its length and complexity: In particular, the type and number of inputs-outputs and the number of extensions. The program is executed periodically at regular time intervals. This time interval is called the cycle time. The program will only execute completely if the cycle time is greater than the program execution time. The cycle period is configurable in the : CONFIGURATION → CYCLE WATCHDOG menu. This period may be set from 6 to 90 milliseconds in 2millisecond steps. The default value of the cycle period is 10 milliseconds. Illustration: 2 CYCLE =05x02mS WATCHDOG INACTIVE + Menu / OK Note: Make sure that: Input variations that are too rapid are not masked by cycle time that is too slow, The speed of output variations is compatibles with system commands. If the duration of the execution cycle of the program and the embedded software functions exceeds the cycle time value selected by the programmer, the WATCHDOG can be used to operate a specific action. Note: In certain dialog phases, the cycle times are increased by the communication times between the PC and the smart relay. No guarantee can be made concerning the real cycle times during this operating mode. The WATCHDOG is always inhibited in this smart relay operating mode. Note: To return to the main menu from the CONFIGURATION menu, use the navigation key .

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CONFIGURATION Menu

Actions

The WATCHDOG can perform the following different actions: INACTIVE: normal operating mode, ALARM: A warning state is set and the warning number corresponding to Cycle time overrun is accessible in the FAULT menu, ERROR: the program stops (STOP mode) and the error number corresponding to: Cycle time overrun is accessible in the FAULT menu.

Cycle Time

The cycle time may be set from 6 to 90 milliseconds in 2-millisecond steps. To adjust this period, adjust the step multiplier factor by 2 milliseconds using the + and - keys of the contextual menu. This factor is between 3 and 45. C Y C L E = 00 x 0 2 m S 5 The multiplier factor is adjusted depending on the shortest sampling period of the inputs.

WATCHDOG Configuration

Procedure:
Step 1 2 Action Configure the CYCLE parameter using the + and - keys of the contextual menu. Confirm the entry using one of the keys: or . Result: The CYCLE parameter is confirmed and the WATCHDOG parameter is selected (it flashes). Configure the WATCHDOG parameter using the + and - keys of the contextual menu. Confirm your changes by pressing the Menu/OK key. Result: The display returns to the MAIN menu.

3 4

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CLEAR PROGRAM Menu

9

CLEAR PROG Menu.
Description

Note: Accessible only in LD mode. This function is used to clear the entire program. Note: If the program is protected (key displayed), the user must enter the password (see PASSWORD Menu, p. 58) before being able to delete the program.

Clearing the Program

On opening, NO is selected by default. Procedure:
Step Action 1 2 Select the YES choice using the navigation keys and . Confirm the clear command by pressing the Menu/OK key. Result: the display returns to the MAIN menu.

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TRANSFER Menu

10

TRANSFER Menu
Description This function is used to: Load the firmware and the application contained in the smart relay into the backup memory. load firmware and application from the backup memory to the smart relay. This backup memory can then be used to load the firmware and the application into another smart relay. Illustration: 2

TRANSFER ZELIO > MEMORY MEMORY > ZELIO

Menu / OK Note: The backup memory is provided as an option. Note: Insertion and extraction of the backup memory may be performed even when the smart relay is powered up. For smart relays without screens, detection of the memory may only be performed on power up of the smart relay, if the memory is inserted when the smart relay is powered on, it will not be acknowledged. Note: If the application is protected (key icon displayed), the user must enter the password before being able to save the program.

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TRANSFER Menu

Note: if an application is already present in the backup memory, it will be overwritten by the new transfer (no test is performed to check the memory is free). Note: It is not possible to directly transfer an application created with version V2 of the programming software from the SR2 MEM01 memory to the smart relay if this latter contains version V3 firmware. In this case, see what action you should take in the section Program incompatible with firmware of the module (see Application incompatible with firmware on the smart relay, p. 70). For more information about the compatibility of the memory cartridges, see Compatibility between the memory cartridges and the version of the firmware on the smart relay, p. 195.

Module → Backup Memory Transfer

Procedure for transferring the application, from the smart relay to the backup memory:
Step Action 1 2 3 4 5 Insert the EEPROM cartridge (SR2 MEM02) into the slot provided. Select the transfer type: MEMORY>ZELIO using the navigation keys Confirm the transfer command with the Menu/OK key. (Enter the password if the program is password-protected). Wait for the transfer to end. Display: > > > MEMORY then TRANSFER. OK when it is complete. Confirm again by pressing Menu/OK key to exit the menu. Result: The display returns to the INPUTS-OUTPUTS screen in RUN mode and to the MAIN menu in STOP mode. .

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Backup Memory → Module Transfer

Procedure for transferring the application, from the backup memory to the smart relay, for a smart relay with LCD and keyboard:
Step Action 1 2 3 4 5 Insert the EEPROM cartridge (SR2 MEM02) with the program to be transferred into the slot provided. Select the transfer type: MEMORY>ZELIO using the navigation keys Confirm the transfer command with the Menu/OK key. Wait for the transfer to end. Display: > > > MODULE then TRANSFER. OK when it is complete. Confirm again by pressing Menu/OK to exit the menu. Result: the display returns to the INPUTS-OUTPUTS screen in RUN mode and to the MAIN menu in STOP mode. .

Procedure for transferring the application, from the backup memory to the smart relay, for a smart relay without LCD or keyboard:
Step Action 1 2 3 4 Since the smart relay is not powered-on, insert the EEPROM cartridge (SR2 MEM02) into the slot provided. Power up the smart relay. During the transfer, the LED display is off. Wait for the transfer to end. During the transfer, the LED display is off, then at the end of the transfer the LED flashes. If the flashing is slow (3 Hz), the transfer has been successful, the smart relay is in RUN, remove the EEPROM cartridge (SR2 MEM02). If the flashing is rapid (5Hz), the transfer has failed due to incompatibility between the configuration necessary for the program to be transferred and that of the smart relay.

Note: When the smart relay is in STOP mode, the LED display is lit and does not flash.

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Possible Errors

Below are the possible errors and, for each case, the messages that are displayed: Absence of backup memory Error message: TRANSFER ERROR: NO MEMORY Configurations of the hardware and program to transfer incompatible Error message: TRANSFER ERROR: CONFIG INCOMPAT (hardware or software reference numbers). Refer to the DEFAULT Menu, p. 77 chapter to consult the error number and clear it. Note: The transfer of one module program to another via a memory card is only possible between smart relays with the same reference. For example, it is impossible to transfer a program from a module with a clock to a module that does not have one.

Application incompatible with firmware on the smart relay

If the application stored in backup memory SR2 MEM01 was created with a version of the programming software that is incompatible (see Compatibility between the memory cartridges and the version of the firmware on the smart relay, p. 195) with the firmware of the target smart relay, proceed as follows:
Step 1 Action Load the application from the backup memory to a smart relay with compatible firmware. Note: If no smart relay has firmware that is compatible with the application, use the programming software version that was used to create the application to load compatible firmware into the target smart relay: Use the version of the programming software that was used to create the application to load it from the smart relay toward the PC. Save the application uploaded in step 2. Launch the latest version of the programming software. Open the application saved in step 3. Result: The programming software converts the application. Load the converted application and the associated firmware to the target smart relay.

2 3 4 5 6

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Use of SR2 MEM01 and SR2 MEM02

On SR2 MEM01, only the program is loaded whereas on SR2 MEM02 the program and the corresponding firmware is loaded. Consequently: With the SR2 MEM01 memory cartridge, you can perform: A smart relay to memory transfer if the version of the firmware on this relay is strictly lower than 3.09. A memory to smart relay transfer if the program contained in the SR2 MEM01 memory cartridge is loaded from a smart relay that has the same version of firmware as the smart relay to which you want to load the cartridge. With the SR2 MEM02, memory cartridge, you can perform: A smart relay to memory transfer if the version of the firmware on this relay is equal to or higher than 3.09. A memory to smart relay transfer if the version of the firmware on the relay to which you want to load the cartridge is higher than 3.09. For more information about the compatibility of the memory cartridges, see Compatibility between the memory cartridges and the version of the firmware on the smart relay, p. 195.

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VERSION Menu

11

VERSION Menu
Description This function is used to precisely identify the version of each system component: Type of hardware, Firmware, LD functions, FBD functions. Illustration: 2

MODULE SR3B261BD HARDWARE 01.00 FIRMWARE 01.00 L D F U N C. 01.00.00
+ Menu / OK

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This information is available for the smart relay, but also for the connected extensions. The symbol is present in the bottom right, indicating the existence of extensions connected to the smart module. Illustration: 2

EXT XT141BD HARDWARE 01.00 FIRMWARE 01.00
+ Menu / OK To quit, press the Menu/OK button, the display returns to the INPUTS-OUTPUTS screen in RUN mode and to the MAIN menu in STOP mode.

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LANGUAGE Menu

12

LANGUAGE Menu
Description This function is used to select the language used by the smart relay. All messages may be viewed in 6 languages: English, French, German, Italian, Spanish, Portuguese. Illustration: 2

ENGLISH FRANCAIS DEUTSCH ITALIANO
Menu / OK

Language Selection

The current language is indicated by the selection symbol (black diamond). Language selection procedure:
Step Action 1 2 Select the language using the navigation keys: and (the selection flashes). Confirm with the Menu/OK key. Result: The display returns to the INPUTS-OUTPUTS screen in RUN mode and to the MAIN menu in STOP mode.

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DEFAULT Menu

13

FAULT Menu
Description This function is used to: Display on the LCD screen the type of fault detected by the firmware of the smart relay (error or warning: Watchdog overrun, see WATCHDOG CYCLE Menu, p. 63, cycle time too high, etc.), Reset the fault counter to zero. Illustration: 2

DEFAULT: 001 CLEAR YES NO

Menu / OK

Reset to Zero of the Fault Counter

To reset the fault counter to zero, proceed as follows:
Step Action 1 2 Select the YES choice using the navigation keys and . Confirm the clear command by pressing the Menu/OK key. Result: The display returns to the INPUTS-OUTPUTS screen in RUN mode and to the MAIN menu in STOP mode.

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DEFAULT Menu

Fault Types
000 001 No faults

Below, the description of possible faults:

Number Type of fault Fault in writing to EEPROM This fault defines the transfer problems between the memory cartridge and the smart relay. If this fault occurs frequently, contact the after-sales service. Clock write fault If the fault occurs frequently, contact the after-sales service. Overload on solid state relay outputs Once a transistor output reaches a temperature of 170°C, the group of 4 outputs to which it belongs is deactivated. To make this group of outputs operational, the cause of the over current (short-circuit, etc.) must first be deleted, and then the fault cleared from the FAULT menu (see FAULT Menu, p. 77). Smart relay firmware is damaged Reload the firmware on the smart relay and the user application. If this problem persists, contact the aftersales service. Watchdog overflow Warning or error according to the selection made in the menu (smart relay display) or in the configuration window (programming software). The cycle time in the smart relay is too short compared with the application program execution time programmed in the smart relay. If the application requires cycle time or strict sampling of the smart relay inputs/outputs, lengthen the application cycle time in the smart relay. To do this, either set the parameters in the CONFIGURATION menu (smart relay display) or in the configuration window (programming software). If the application does not require the cycle time, you must choose: No WATCHDOG Action, in the CONFIGURATION menu. The smart relay has executed an unknown operation If the fault is permanent , reload the firmware on the smart relay and the user application. If this problem persists, contact the after-sales service. Link fault between smart relay and bus-type extension Check operation of the extension (connection, power supply, fault). Link fault between smart relay and input/output-type extension Check operation of the extension (connection, power supply and fault). A fault has been detected in the firmware (software specific to the smart relay) or on the smart relay hardware. If the fault is permanent, reload the firmware on the smart relay and the user program. If this problem persists, contact the after-sales service. At the beginning of RUN on the smart relay application: The application cannot switch to RUN because it is incompatible with the smart relay physically connected to the power supply. If this problem occurs, contact the after-sales service. At the beginning of RUN on the smart relay application: Program incompatible with the bus extension physically connected to the power supply. If this problem occurs, contact the after-sales service.

002 004

050

051

052

053 054 058

059

060

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DEFAULT Menu Number Type of fault 061 At the beginning of RUN on the smart relay application: Program incompatible with the Input/ Output extension physically connected to the power supply. If this problem occurs, contact the after-sales service. Version (or build number) incompatibility when loading a program from the backup memory If this problem occurs, contact the after-sales service. Hardware configuration incompatibility when loading a program from the backup memory If this problem occurs, contact the after-sales service.

062 063

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CHANGE DATE/TIME Menu

14

CHANGE DATE/TIME Menu
Description This function is used to configure the date and time of the smart relays that have a clock. Illustration: 2 CHANGE D/H THU 07 JUL 2003 16 : 27 30 s CAL 0 2 secs / WK + Menu / OK The modifiable parameters are: Day / week / month / year, Hour, minutes, seconds, Values are recorded by pressing the Menu/Ok key; if you wish to specify the time more accurately, you should complete the entry of modifications with minutes and seconds. CAL: Calibration of the internal clock of the smart relay in seconds per week.

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CHANGE DATE/TIME Menu

Clock Calibration

The quartz that controls the real-time clock of the smart relay has a variable monthly drift depending on the environmental conditions of the smart relay. The maximum value for this drift is approximately one minute per month. To estimate this drift, proceed by observing the drift on the smart relay clock with respect to a standard reference clock for a few weeks or more. Example: If you wish to compensate this drift, you can for example make a -15 second correction per week to compensate for a + 60 second drift per month. This compensation is executed on Sunday at one O'clock in the morning. Note: This correction serves no purpose if the smart relay is subject to long power interruptions or major variations in temperature.

Clock Configuration

Procedure:
Steps Description 1 Select the parameter to modify using the navigation keys Result: The selected parameter flashes. (When you enter this mode, the day value is selected) and .

2 3

Modify the value of the parameter. The + and - keys of the contextual menu can be used to change the current value. Confirm the changes by pressing the Menu/OK key. Result: The display returns to the MAIN menu.

Note: The smart relay contains a software module that determines the day of the week when the user selects the day of the month in the year. Note: You are not allowed to modify the hour by a product between 2:00 and 3:00 AM for the days of the change from summer to winter time (at 3:00 it is 2:00)

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CHANGE SUMMER/WINTER Menu

15

CHANGE SUMMER/WINTER Menu
Description This function is used to change the time range automatically: Summer/winter, for smart relays with a clock. Illustration: 2

CHANGE SUM/WIN EUROPE SUM M:03 D:5 WINTER M:10 D:5
+ Menu / OK The following operating modes are possible: NO: no change, Automatic: The change takes place automatically, the dates are preset according to the geographic zone: EUROPE: Europe, USA. OTHER ZONE: (MANUAL) the change takes place automatically, but you must specify, for summer and winter: The month: M, The Sunday: D (1, 2, 3, 4 or 5) when the change takes place.

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CHANGE SUMMER/WINTER Menu

Configuration of the Time Change

To configure automatic time change, proceed as follows:
Step Action 1 2 3 Select the parameter to modify using the navigation keys Result: The selected parameter flashes. and .

Modify the parameter value. The + and - keys of the contextual menu are used to change the current value. Confirm the changes by pressing the Menu/OK key. Result: The display returns to the MAIN menu.

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LD Language

III

At a Glance
Subject of this Section What's in this Part? This section describes the use of LD (Ladder Diagram) programming language for the smart relay. This part contains the following chapters:
Chapter 16 Chapter Name LD Language Elements Page 87

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16

At a Glance
Subject of this Chapter What's in this Chapter? This chapter describes the different automation functions of the LD language.

This chapter contains the following topics:
Topic Introduction Discrete Inputs Zx Keys Auxiliary Relays Discrete (DISCR) Outputs Timers Counters Fast Counter Counter Comparators Analog Comparators Clocks Texts LCD Screen Backlighting Change to Summer / Winter Time Modbus Inputs/Outputs Message Page 88 89 91 93 98 101 111 118 128 129 134 138 140 141 143 144

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Introduction
Description In LD programming mode, an application can be created from the interface of the front panel of the smart relay. Here is detailed information on all possible elements of a ladder diagram in LD mode that are recognized and used by smart relays. To better understand the functions performed by each element, where necessary a directly usable example is included. Composition of Ladder Diagrams Smart relays accept 120-line diagrams. Each line is comprised of a maximum of 5 contacts. Contacts must be attached to one coil, and the coil is not necessarily on the same line. Note: When an application requires more than five contacts to activate an action, the auxiliary relays may be used.

Sample Ladder Diagram

Below is an example of a ladder diagram, as it appears on the display of the front panel of a smart relay: 2

I1 I2 I3

RT1 M3 Z1 SM1 TT1
Menu / OK

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Discrete Inputs
Description The Discrete Inputs can be used exclusively as contacts in the program. These contacts represent the status of the input for the smart relay connected to a sensor (push button, switch, sensor, etc.). The contact number corresponds to the number of terminals of the associated input: 1 to 9, then A to R (except for letters I, M and O) according to the smart relay and the possible extension. Use as a Contact This contact may use the direct state of the input (normally open mode) or its inverse state (mode normally closed), see below. Normally open mode: Symbol of a normally open contact: IA normally open contact corresponds to the use of the direct state of the input. If the input is supplied, the contact is said to be conducting. Example: Using a pushbutton to switch a lamp on and off. I1 Q1

If input 1 is supplied, contact I1 is closed, and coil Q1 is activated. Normally closed mode: Symbol of a normally closed contact: iA normally closed contact corresponds to the use of the reverse state (logical complement of the direct state) of the input. If the input is supplied, the contact is said to be non-conducting. Example: Controlling a lamp using an input in reverse state. i1 [Q1

If input 1 is supplied, contact i1 is open, and coil Q1 is non-activated.

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Modification of the state of a contact

To modify a contact from the front panel of the smart relay (the programming window is displayed on the screen), simply: Place the cursor over the letter of the contact, Proceed as indicated in the paragraph Modifying an element,, p. 44, to scroll through the possible contact types (I for a normally open contact, i for a normally closed contact). Status of contacts on program initialization: The direct state is inactive, The reverse state is active.

Initialization

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Zx Keys
Description The navigation keys behave exactly like the I physical inputs (Discrete inputs). The only difference is that they do not correspond to smart relay connection terminals, but to the four gray buttons on the front panel. They are used as pushbuttons, and can only be used as contacts. Use as a Contact This contact may use the direct state of the key (normally open mode) or its inverse state (mode normally closed), see below. Normally open mode: Symbol of the normally open contact, representing a key: ZThe normally open mode corresponds to the use of the direct state of the key. If the key is pressed, the corresponding input is said to be conducting. Normally closed mode: Symbol of the normally closed contact, representing a key: zThe normally closed mode corresponds to the use of the reverse state (logical complement of the direct state) of the key. If the key is pressed, the corresponding input is said to be non-conducting. Example Creating a switch operated by the Z1 key and Q1 output: Z1 Q1

Each time the Z1 key is pressed, the Q1 output changes state.

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Deactivation of Zx Keys

By default the Zx Keys are active. They may be deactivated in one of the following ways: From the smart relay front panel: Using : CONFIGURATION → Zx KEYS menu, see Zx KEYS Menu, p. 62 From the programming software: See on-line help of the programming software for more information. Note: When the smart relay is in RUN mode, if the Zx Keys have been deactivated, they cannot be used for inputs in the program, but can be only used for navigating the menus.

Modification of the State of a Contact

To modify a contact from the front panel of the smart relay (the programming window is displayed on the screen), simply: Place the mouse over the letter representing the contact, Proceed as indicated in the paragraph Modifying an element,, p. 44, to scroll through the possible contact types (Z for a normally open contact, z for a normally closed contact). Status of contacts on program initialization: Normally open mode (direct state) is inactive, Normally closed mode (reverse state) is active.

Initialization

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Auxiliary Relays
Description Auxiliary relays marked M behave in exactly the same way as Q Discrete outputs (see Discrete (DISCR) Outputs, p. 98), but do not have an electrical output contact. They can be used as internal variables. There are 31, numbered from 1 to 9 and from A to Y except for letters I, M, O. All auxiliary relays can be used, in the program, indifferently either as a coil or contact. They can be used to latch a state to be used in the form of the associated contact.

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Use as a Coil

To use an auxiliary relay as a coil, 4 modes are available: Contactor mode, Impulse relay mode, Latch mode, Unlatch mode. Contactor mode: Symbol of an auxiliary relay, used as a coil in contactor mode: [ MThe relay is energized if the contacts to which it is connected are conducting. Otherwise it is not energized. Impulse relay mode: Symbol of an auxiliary relay, used as a coil in impulse relay mode: MPulse energization, the coil changes state on each pulse it receives. Latch mode: Symbol of an auxiliary relay, used as a coil in latch mode: SMThe SET relay, also called the latch relay, is energized as soon as the contacts to which it is connected are conducting, then stays set even if later the contacts are no longer conducting. This behavior is identical to that of an RS logic flip-flop. Unlatch mode: Symbol of an auxiliary relay, used as a coil in latch mode: RMThe RESET relay, also called the unlatch relay, is deactivated when the contacts to which it is connected are conducting. It remains deactivated even if later the contacts are no longer conducting. Note: for reasons of increasing compatibility for programs operating with Zelio 1, the four types of mode for any given Q output coil or M auxiliary relay can be used in the same wiring diagram in Zelio 2.

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Use as a Contact

Auxiliary relays can be used as contacts as many times as necessary. This contact may use the direct state of the relay (normally open mode) or its inverse state (mode normally closed), see below. Normally open mode: Symbol of an auxiliary relay, used as a contact in normally open mode: MA relay used as normally open contact corresponds to the use of the direct state of the relay. If it is powered, the contact is said to be conducting. Normally closed mode: Symbol of an auxiliary relay, used as a contact in normally closed mode: mAn auxiliary relay used as a normally closed contact, corresponds to the use of the reverse state (logical complement of the direct state) of the relay. If it is powered, the contact is said to be non-conducting.

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Example

In the following example turning on and off a lamp is conditioned by the status of the 6 following inputs: I1, I2, I3, I4, I5 and IB. The is on when: The I1, I4, I5 and IB inputs are set to the state 1, and The I2, I3 are set to state 0. Because the smart relay does not allow more than five contacts on a line, auxiliary relays are used to control the lamp. You choose to memorize the state of inputs I1, I4, I5 and IB using the auxiliary relay M1 and memorize the state of inputs I2 and I3 using the auxiliary relay M2. The lamp is controlled by relays M1 and M2, used respectively as normally open contact and as normally closed contact. Illustration:
I1 I4 I5 IB M1

001
I2 I3 M2

002
M1 m2 Q1

003

Modifying the Mode of a Coil or a Contact

To modify the operating mode of a coil or a contact from the front panel of the smart relay (the programming window displayed on screen), simply: Position the cursor on the symbol representing the coil mode or on the letter of the contact, Proceed as indicated in the paragraph Modifying an element,, p. 44, to scroll through the possible modes for a coil or contact types possible (M for normally open contact, m for a normally closed contact). Status of contacts on program initialization: Normally open mode (direct state) is inactive, Normally closed mode (reverse state) is active.

Initialization

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Latching

By default, after a power failure, the relay is in the state that corresponds to program initialization. To restore the state of the output backed up during power loss, the latching must be activated: From the front panel: From the PARAMETERS (see PARAMETERS Menu, p. 51) window, or In the programming software: Enable the Latching option in the parameters window associated with the relay.

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Discrete (DISCR) Outputs
Description Discrete Outputs correspond to the smart relay output relay coils (connected to the actuators). These outputs are numbered from 1 to 9, then from A to G, according to the smart relay and any extensions. Any Discrete output can be used, in the program, indifferently either as a coil or a contact. Use as a Coil To use a Discrete output as a coil, four modes are available: Contactor mode, Impulse relay mode, Latch mode, Unlatch mode. Contactor mode: Symbol of a Discrete output, used as a coil in contactor mode: [ QThe coil is energized if the contacts to which it is connected are conducting. Otherwise it is not energized. Impulse relay mode: Symbol of a Discrete output, used as a coil in impulse relay mode: QPulse energization, the coil changes state on each pulse it receives. Example: Switching a lamp on and off with a pushbutton: i1 Q1

A push button is connected to input I1 and a lamp to output Q1. Every time the button is pressed, the lamp switches on or off.

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Latch mode: Symbol of a Discrete output, used as a coil in latch mode: SQThe Set coil, also called the latch coil, is energized as soon as the contacts to which it is connected are conducting, then stays set even if later the contacts are no longer conducting. This behavior is identical to that of an RS logic flip-flop. Example: Switching a lamp on and off with two pushbuttons: See Latching Mode below. Unlatch mode: Symbol of a Discrete output, used as a coil in unlatch mode: RQThe RESET coil, also called the unlatch coil, is deactivated when the contacts to which it is connected are conducting. It remains inactive even if later the contacts are no longer conducting. Example: Switching a lamp on and off with two pushbuttons: See Unlatch Mode I1 I2 SQ1 RQ1

BPI1 is connected to input I1. BPI2 to input I2. The lamp is controlled by output Q1. The lamp turns on when pushbutton BPI1 is pressed, and it turns off when pushbutton BPI2 is pressed. Note: Output use rule: An output may only be used at one single point in the program as a coil. If a SET coil is used for a Discrete output, it is advisable to provide a RESET coil for this output. The RESET coil takes priority over the SET coil. The use of a Set coil on its own is only justified for activating an alarm signal that can be reset only by an INIT + ON action from the program. Note: For reasons of upward compatibility for programs operating with Zelio 1 smart relays, the four types of modes for any given Q output coil or M auxiliary relay can be used in the same wiring diagram in Zelio 2. In this case, the operating mode is determined by the coil activated first.

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Use as a Contact

An output can be used as an auxiliary contact as many times as necessary. This contact may use the direct state of the output (normally open mode) or its inverse state (normally closed mode), see below. Normally open mode: Symbol of a Discrete output, used as a contact in normally open mode: QAn output used as a normally open auxiliary contact corresponds to the use of the direct state of the output. If it is powered, the contact is said to be conducting. Normally closed mode: Symbol of a Discrete output, used as a contact in normally closed mode: qAn output used as a normally closed auxiliary contact corresponds to the use of the reverse state (logical complement of the direct state) of the output. If it is powered, the contact is said to be non-conducting.

Modifying the Mode of a Coil or a Contact

To modify the operating mode of a coil or a contact from the front panel of the smart relay (the programming window displayed on screen), simply: Position the mouse on the symbol representing the coil output mode or on the letter of the contact representing the output, Proceed as indicated in the paragraph Modifying an element,, p. 44, to scroll through the possible modes for coils or contact types possible (Q for normally open contact, q for a normally closed contact). Status of contacts on program initialization: Normally open mode (direct state) is inactive, Normally closed mode (reverse state) is active.

Initialization

Latching

By default, after a power failure, the relay is in the state that corresponds to program initialization. Activate latching to restore the state of the output backed up during power loss: From the front panel: from the PARAMETERS (see PARAMETERS Menu, p. 51) window, or In the programming software: Enable the Latching option in the parameters window associated with the output.

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Timers
Description Use the Timers function to delay, prolong and control actions over a predetermined period. Durations can be set using one or two preset values, according to the type of timer. There are 11 types of timers: On delay (A), On delay, stop by reset (A), Off delay (C), On pulse one shot: Pulse calibrated on the command input (B) falling edge. Timing after pulse: calibrated on falling edge of the command input (W), Flasher unit, control held down synchronously (D), Flasher unit, Press to start/stop, Synchronous (D), Time on addition (T), A/C, Flasher unit, control held down asynchronously (L), Flasher unit, Press to start/stop, Asynchronous (I), Refer to the Timing Diagrams paragraph for the description of different types of timers. The smart relay has 16 timer function blocks, numbered from 1 to 9 then from A to G. Each block has a reset input, a command input and an output used to indicate timer time-out.

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Use of Coils

Two coils are associated with each timer: Coil TT: Command Input, Coil RC: Reset Input, The use of these coils is described below. Command input: Symbol of the Command input coil of a timer: TTEach type involves a specific operation, which can be used to manage all possible scenarios in an application. Reset input: Symbol of the Command input coil of a timer: RTEnergization of the coil causes a reset of the current timer value: contact T is deactivated and the function is ready for a new timer cycle. Note: this coil is only necessary for pulse start/stop type timers.

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Use as a Contact

The contact associated with the timer indicates whether the timer has stopped. It may be used as many times as necessary in the program. It may be used according to 2 modes: normally open or normally closed, described below. Normally open mode: Symbol of the normally open contact associated with a timer: TA normally open contact corresponds to the use of the direct state of the output of the Timer function block If this output is active, the contact is said to be conducting. Normally closed mode: Symbol of the normally closed contact associated with a timer: tA normally closed contact corresponds to the use of the reverse state (logical complement of the direct state) of the output of the Timer function block. If this output is active, the contact is said to be non-conducting.

Configuration from Front Panel

The block's parameter settings can be accessed either when entering the command line or from the PARAMETERS menu if the block has not been padlocked. The parameters to enter are the following: Timer type, Preset value(s), Time unit, Parameter lock, Latching. Type of timer: This parameter allows you to choose the type of timer function from among the 11 types available. Each type is represented by a letter: A: Active, control held down, a: Active, Press to start/stop, C: Off delay A/C: Combination of A and C, B: On pulse one shot: Pulse calibrated on the command input rising edge, W: Timing after pulse: Pulse calibrated on the command input falling edge, D: Flasher unit, control held down synchronously, d: Flasher unit, Press to start/stop, Synchronous, L: Flasher unit, control held down asynchronously, l: Flasher unit; Press to start/stop, Asynchronous T: Time on addition.

SR2MAN01 11/2007

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LD Language Elements

Preset value: Depending on the type of timer, there can be 1 or 2 preset values: 1 only preset value (types: A, a, C, B, W, D, d and T): t : on-delay or off-delay according to type. 2 only preset value (types: A/C, L and l): A : Timer on-delay in the case of A/C type; active state in the case of flasher units L and l. B : Timer off-delay in the case of A/C type; inactive state in the case of flasher units L and l. Time unit: This is the time unit for the preset value. There are five possibilities:
Unit 1/100 of a second Symbol Form 00.00 s Maximum value 00.00 s

s S M:S H:M H

1/10 of a second

000.0 s

00.00 s

Minutes : Seconds

00 : 00

99 : 99

Hour : Minute Hours Only for type T.

00 : 00

99 : 99

0 000 h

9,999 h

Parameter lock: Symbol of the Parameter Lock parameter: Verrouillé Non verrouillé

Locking prevents the modification of locked parameters from the front panel of the smart relay via the PARAMETERS menu.

104

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LD Language Elements

Latching: By default, if a power break occurs while a timer function block is running, any information on time already elapsed is lost. When the supply voltage returns, the time function block is reinitialized and ready for a new operating cycle. If the application requires it, the time elapsed before the power break can be memorized using the Latching parameter. Symbol of the Latching parameter: Activé Non activé

This function is used to save the state of the timer's current values and memorize the elapsed time in the event of a power break. Illustration: Configuring a counter from the front panel of the smart relay: 9 8 2 1 2 3 4 TT1 RT1 a T1 A = 00:20 AC M:S b B = 00:45 + Menu / OK 5 Description:
Number Parameter 1 2 3 4 Reset input Timer output Parameter lock Description Reset input timing diagram. Timer output timing diagram. This parameter is used to lock the counter parameters. When the block is locked, the preset value no longer appears in the PARAMETERS menu. Timer on-delay of the A/C timer. Timer off-delay of the A/C timer. Time unit for the preset value. Backup of state of the current counter value in the event of a power cut. Type of timer used. Command input Command input timing diagram.

7

6

5 6 7 8 9

Timer on-delay Timer off-delay Time unit Latching Timer type

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Timing Diagrams

Timing diagrams are provided here to illustrate the various behaviors of the Timer function block, according to the type of timer chosen: Active, control held down (type A): The following diagram shows the operation of the type A timer:
TT RT T tA

Active, Press to start/stop (type a): The following diagram shows the operation of the type a timer:

TT RT T tA

Note: each pulse on the TTx input resets the current timer value to 0. Off delay (type C): The following diagram shows the operation of the type C timer:

TT RT T tA t < tA tA

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A/C: Combination of A and C, The following diagram shows the operation of the type A/C timer:
TT RT T t

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