LD Language Elements | Schneider Electric SR2MAN01 guide

LD Language Elements

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	Page

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

SR2MAN01 11/2007

87

Image 74

Schneider Electric SR2MAN01 user manual LD Language Elements, Subject of this Chapter Whats in this Chapter?

Contents

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