Introduction, Composition | Schneider Electric SR2MAN01 manual

LD Language Elements

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	Smart relays accept 120-line diagrams.
Ladder Diagrams	z Each line is comprised of a maximum of 5 contacts.
	z Each line is comprised of a maximum of 5 contacts.

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

I1			RT1
I2
I3	M3	Z1	SM1
			TT1
			Menu / OK

88	SR2MAN01 11/2007

Image 75

Schneider Electric SR2MAN01 Introduction, Composition, Ladder Diagrams, Sample Ladder, Diagram Panel of a smart relay

Contents

11/2007 Zelio Logic Smart Relay Table of Contents Transfer Menu Configuration MenuDefault Menu Clear Program Menu Sample Application DiagnosticsImplementing a Basic Application Debugging an Application Important Information Safety Information Safety Information At a Glance About the Book Initial Power up and Discovering Chapter Name Initial Power up and DiscoveringPresentation Topic Subject of this Chapter Whats in this Chapter? Preliminary Advice Safety Risk of Electric SHOCK, Explosion or Electric Arcing Involuntary Operation of Equipment Presentation of the Smart Relay Front Panel U 2 5 S E P 1 6 4Introduction Description Smart Relay Front Panel Description of the LCD An Active input or output is displayed in reverse videoPrompt Element Characteristics and Connections RegulatedRectified and filtered Menu/OK Key Control Keys on the Front Panel of the Smart RelayN / S T O P Shift Key Navigation keys are used to move left or right, down or up Round for a link only in programming modeZx Keys Are marked above the keys Using the contextual menu functions ContextualMenus Contextual menu appears Illustration Ins + Param Del View ExamplesIntroduction Language Selection Step Action E a R P R O G A N S F E R R S I O N N G U a G E Or then D E O P Then Times in LD mode Modification of Date and HourView A N G E D / H U L 2 0 0 2 7 3 0 s Secs / WK View 3 4 B C D E Functions Accessible from the Front Panel Subject of this Section Whats in this Part?Chapter Chapter Name Overview of the Functions Accessible from the Front Panel Line flashes to indicate where you are positionedTo return to the previous menu, press left navigation key Extensions Certain menus are specific to either LD or FBD modeConfiguring Differences Between LD FBD Modes Input/Output Screen N 2 2 S E P 1 5 5 Programming type LD or FBD Mode Stop or RUNInputs-Outputs Screen 3 4 5 Main Menu Access to T e 1 1 / 2 0 0 Switching Between ScreensText and Display screen L u e c o u n t e r Result Param is displayed at the bottom of the screen Press the Shift key white key to display the contextual menu Subject of this Chapter Programming Menu Chapter? Rules for Entering Ladder Diagrams Smart relay allows you to enter 120 line Ladder diagramsFollowing manner Rules Incorrect Correct M1----I4-I5-I6-Q1 Method for Entering a Contact or Coil Description Entering an ElementIns Del Modifying an element Initialization Deleting an Element Steps 7 to 9 are only necessary when entering a coil Description Entering a Link Entering a Link Deleting a Link Replacing a Link with a Contact Entry of Function Block Parameters Description Accessibility of parameters To modify the parameters of an existing element, simply Entering Parameters on Creation of the BlockIns. + Param Del Modifying Parameters Existing Blocks Deletion and Insertion of Diagram Lines DeletionInsertion LD mode Parameters MenuParameters menu RUN Mode FBD mode Parameter Modification Monitoring Menu To modify the parameters, proceed as follows RUN/STOP Menu StartupFollowing three choices for starting the program Off Smart Relays Without Screen O P Configuration Menu Password to perform certain operations Password Menu Removing Entering PasswordPassword E a R 1 3 0 M I N U T E S E a R 2 Fast Filter MenuDescription Filter-Type Selection Filtering Commutation Response time Slow Zx Keys Menu Description Zx Keys in RUN Mode Illustration C L E = 0 5 x 0 2 m S Watchdog Cycle Menu Actions Cycle Time Watchdog Configuration Clear Program Menu Clear Prog MenuDescription Clearing the Program Transfer Menu L I O M E M O R YM O R Y Z E L I O Module → Backup Memory Transfer RUN, remove the Eeprom cartridge SR2 MEM02 Backup Memory → Module Transfer With firmware on Absence of backup memoryApplication Incompatible MEM02 Use of SR2 MEM01 and SR2 R M W a R E 0 1 Version MenuD U L E S R 3 B 2 6 1 B D R D W a R E 0 1 1 4 1 B D A L I a N O Language Menu Reset to Zero of the Fault Counter Illustration Default MenuFault Menu Fault 0 0 Fault Types Default Menu A N G E Change DATE/TIME Menu Clock Configuration ExampleSteps Description Smart relays with a clock Change SUMMER/WINTER Menu To configure automatic time change, proceed as follows Configuration of the Time Change Chapter Chapter Name LD Language Elements LD Language LD Language Elements Composition Ladder DiagramsDiagram Panel of a smart relay Introduction Use as a Contact Normally open modeNormally closed mode Discrete Inputs Modification State of aContact Zx Keys Normally open mode direct state is inactive Normally closed mode reverse state is activePlace the mouse over the letter representing the contact Auxiliary Relays They can be used as internal variablesContact Unlatch mode Contactor modeImpulse relay mode Latch mode Normally open mode Following inputs I1, I2, I3, I4, I5 and IB Modifying the Mode of a Coil or a Contact Window LatchingInitialization Activated Smart relay and any extensions Discrete Discr Outputs SQ1 Window associated with the output Timers Reset input Coil TT Command InputCoil RC Reset Input Command input Type of timer Parameter lock Preset valueUnit Symbol Form Maximum value Time unit Time unit Command input timing diagramTimer type Number Parameter Description Active, control held down type a Following diagram shows the operation of the type a timerOff delay type C Following diagram shows the operation of the type C timer Combination of a and C On pulse one shot type BTiming after pulse type W Flasher unit, Press to start/stop, Synchronous type d Following diagram shows the operation of the type D timerFollowing diagram shows the operation of the type L timer Flasher unit, control held down synchronously type D Current values is are zeros Following diagram shows the operation of the type T timerNormally closed mode inverse state is active Time on addition type T Preset value t Illustration Timers configuration screen Coil DC Counting Direction input Coil RC Reset Initial Counter State InputCounters Coil CC Counting Pulse Input Reset Initial Counter State input Every time key Z1 is pressed, the counter starts fromCounting direction input Contact is conducting as long as Type of counting Number Parameter Description Command input Counter reset input timing diagramCounter output Counter output timing diagram Initialization R Counting Mode toward the preset value Current value is zeroExamples Fast Counter Coil TK1 Enable function input Coil RK1 Reset initial counter state inputEnable function input 120 Symbol of the Duration of pulse parameter Cycle typeDuration of pulse Symbol of the Parameter Lock parameter Verrouillé Value Counter reset to its initial state Current CounterNumber Parameter Description Cycle type Single/Repetitive Up-Counting in Single Cycle Mode Up-counting in Repetitive Cycle Mode Down-Counting in Single Cycle Mode Down-Counting in Repetitive Cycle Mode TK1 RK1 Counter Comparators Analog Comparators Values to compare Configuration from Front PanelXl Comparison Operator X1 H ≤ x2≤ x1 + H Reference value Hysteresis parameterParameter locking N a L O G ≤ x = I d = I e N a L O G≤ ξ 2 ≤ x 1 + H = 4 = R = 1 = I e Comparison operator no is chosen, that is ≤ Temperature is below 20 C Clocks Mode or its inverse state mode normally closed, see belowSymbol of the normally open contact, representing a clock Symbol of the normally closed contact, representing a clock Operating ranges D / W O N O F FRelay Number Parameter Interval Start on Friday at End on Monday at Day at 2 3 2 3 4 Display from the Text screen to the inputs-outputs screen TextsThese function blocks are used as coils Only the block with the highest number is displayed Display Activation coil Display Deactivation coil Display ActivationDisplay deactivation Used as a Coil LCD Screen Backlighting Access Change to Summer / Winter TimeCheck the Activate Summer/Winter Time Change box Europe Europe Modifying the Mode of a Coil or a Contact Initialization Modbus Inputs/Outputs Smart relayWords sent by the master Message Use of the Coil Command input Configuration from the Front Panel Initialization Creating and Debugging an Application Implementing a Basic Application Presentation of Ladder Diagrams Works a two-way switchNormal electrical diagram Ladder diagram Module Wiring Below, an illustration of smart relay wiring Operation Can be used in place of two position switchesMon Input I wired on the smart relay Using the Reverse Function Electrical diagram Connection to the smart relay Ladder diagram 1 Light off when idlePractical Example Off delay Operating Electrical diagram Electrical symbol Ladder symbol Notation Used by the Smart RelayEquivalencies Between Notations 156 Application Implementing a Two-way Switch Description Go to the Programming ScreenStep Action Screen Comment To enter the contacts in the first line, proceed as follows Entering Contacts First Line Step Action Screen Fois Entering the Coil and Joining it to the Contacts To enter the contacts in the second line, proceed as follows Entering Contacts Second Line Flashes Joining the Second Line to the FirstTo join the second line to the first, proceed as follows Second 1 in the second line Launching the Program To launch the program, proceed as followsProgramming is selected Debugging an Application N L D Module in RUN Mode Viewing Status Menus RUN mode Dynamic Mode Ladder Diagrams Viewing Ladder DiagramsChanging Ladder Diagrams 3 4 5 N 2 2 S E P 1 5 5 Using Z Keys as Pushbuttons Dynamic Mode Function Block Parameters AccessingPresentation Dynamic Mode Menus Dynamic ModeMenus Not. Here is a summary table Smart Relay Reaction to a Power Failure Event of a power failureOption defined in the parameters window Safety Mode With the clock function block 1 configured as followsExample of a non-locked coil This allows Backup and Transfer of Ladder Diagrams19Saving and Transferring Ladder Diagrams Memory optional and vice-versa Sample Application Specifications Outputs Specification AnalysisInputs Button Smart relay label Name Special function blocks Description Implementing Ladder Diagram Implementing the Solution Function Blocks O F F 1 2 0 Fan operating duration if the CO Function block Comment Analog function block A1Compares the measured CO 2 level With the threshold value 8.5 Chapter Name Diagnostics 187 Diagnostics Smart Relay Messages 188 Frequently Asked Questions 189 Relay, their possible causes and how to remedy the problem Smart Relay MessagesMessage Cause Corrective action Questions are listed here Frequently Asked Questions Frequently Asked QuestionsAnswer Appendix? AppendicesThis section contains product-related appendices Appendix contains the following chapters Compatibility Subject of thisChapter Version Smart relay firmware version Memory cartridge Memory Cartridge to Smart RelayType of memory cartridge Version of firmware compatible Smart relay firmware language Index Change DATE/TIME Change SUMMER/WINTER, 83 Clear Prog Menu 35007143