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GE GFK-0804B manual Chapter Micro PLC Instruction Set

Models: GFK-0804B

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Chapter

4

The Micro PLC Instruction Set

This chapter defines the individual logic elements that can be combined to make a program for the Micro PLC.

HInstruction Set Summary

HContacts

h Normally-Open Contact h Normally-Closed Contact h Positive Transition Contact h Negative Transition Contact

HCoils

h Output Coil

h Set/ResetCoilPair

h Master Control Relay/End Coil Pair

h Skip/EndCoilPair

HTimers

h On Timer h Off Timer

HCounters

h Up Counter h Down Counter

HMath Functions

h Addition (ADD) h Subtraction (SUB)

h Multiplication(MUL) h Division (DIV)

HMove Functions h Move

h Block Move h Indirect Move

HCompare Functions

HLogic Operations h Word AND

h Inclusive OR (IOR) h Exclusive OR (XOR) h Shift Register Right h Shift Register Left h NOT

GFK-0804B

4-1

Image 42

GE GFK-0804B manual Chapter Micro PLC Instruction Set

Contents

GE Fanuc Automation GFL±002 Content of this Manual Related PublicationsPreface Technical AssistanceWe Welcome Your Comments and Suggestions Contents Math Functions Appendix a Using Directories Appendix B Micro PLC Protocol Appendix E Data Acquisition, Logging, and Display Program Chapter Programming for the Micro PLC Programming Basics Device DesignationPower Flow in a Program PLC ProgramsMicro PLC Instruction Set Programming Devices and Formats Programming with the Programming SoftwareProgramming on a Hand-held Programmer Memor y Map Memory Types and AddressesConstants and Register Values in a Program Non-retentive and Retentive RegistersStart-up Scan Coil C1019 Special CoilsSec Clock C1018 Hold Output Coil C1021Analog References Programming for an Analog Expander UnitAnalog Scaling Maximum ValuesProgramming Examples Example #1Chapter Programming with the Programming Software Using the Programming Functions Programming OperationsProgramming Functions Creating a Program Rung Running the Programming Software Running the Programming Software from a Hard DiskRunning the Programming Software Directly from a Diskette Editing Basics Horizontal and Vertical Lines in a Rung Element Labels and Rung Labels Editing a Rung Element Editing a Completed RungSelecting a Rung to Edit Deleting a Rung ElementAdding a Contact to a Rung Adding a Program Function to a RungReplacing a Rung Element with a Similar Element Replacing a Rung Element with a Horizontal LineReplacing a Rung Element with a Dissimilar Element Deleting Rungs Moving RungsCopying Rungs Searching for a Rung or Program Element Chapter Programming with a Hand-held Programmer Program Listing Program TransferEntering Program Logic Hand-Held Programmer Key Operation and DisplaysInserting a Rung Element Deleting a Rung Element, Rung or Program In Memory Deleting a Rung Element Searching Programming Examples Using the HHP Ladder Diagram Chapter Micro PLC Instruction Set Operation Ladder Symbol Description Instruction Set SummaryMicro PLC Instruction Set Contacts General Programming Software Instructions for ContactsExamples and HHP Instructions Normally- Open ContactProgramming Software Instructions Programming Normally-Open Contact at the Start of a RungProgramming a Normally-Open Contact in Series Programming a Normally-Open Contact in ParallelNormally- Closed Contact Programming Normally-Closed Contact at the Start of a RungProgramming a Normally-Closed Contact in Series Programming a Normally-Closed Contact in ParallelPositive Transition Contact Example and HHP InstructionsNegative Transition Contact Example and HHP InstructionsUsing Coil Pairs CoilsGeneral Programming Software Instructions for Coils Output Coil Set/Reset Coil Pair ResetExample and HHP Instructions Set Master Control Relay/End Coil Pair EndSkip/End Coil Pair SkipEnter the other logic required by the Timer TimersProgramming Software Instructions for Timers Use the Accept F10 key to add the rung to the programOn Timer Off Timer Counters Programming Software Instructions for CountersEnter the other logic required by the Counter Up Counter Down Counter Maximum Total Math FunctionsAddition ADD AdditionR1+R2 ! R3 R1+ 1! R4 Subtraction SUB 1st number 2nd number Total in registerR1± 5! R2 R3±R4 ! R5 Multiplication MUL ExamplesR1 x R2! R3 Division DIV Whole # RemainderUsing Division and Multiplication Functions Together DivideMove Move FunctionsMove Select Move F5 from the Math/Move function keysLadder Diagram Hand-held Programmer Block Move R001 0002 R004 R010 R020 R100R1E 5! R10 O9E 8! O17 Indirect Move Specifying a Location in the Pointer RegisterSelect I±Move F7 from the Math/Move function keys Start Move Equal Compare FunctionsExamples GreaterPress Enter to add the function to the program Logic Operations NotWord Inclusive or IOR Exclusive or XOR Shift Register Right Entering the Number of Positions to ShiftShift Register Left Not Appendix Using Directories Loading and Saving FilesUsing the Change Directory Function MICRO.CFG FileHints for a Basic Application Hints for an Advanced Application CMD\MICRO\PALLET CMD\MICRO\RIVETER CMD\MICRO\TRANSFERAppendix Micro PLC Protocol Communications Files Memory Addresses Communications Memory Types and AddressesCommunications Parameters Special RegistersRead Discretes Communications ProtocolData Format ReplyWrite Discretes Read AnalogsRead Program Memory Write AnalogsWrite Program Memory Read StatusStatus Word Start Program Error ReplyError codes Stop ProgramCommunications Functions Microsoft C Large Model Compile w/ -AL OptionMicrosoft C Small Model Compile w/ -AS Option Turbo C Large Model Compile w/ -ml Option Turbo C Small Model Compile w/ -ms Option IBM Compiler Basic Sample Programs #include dos.h #include stdio.h #include ªMCROCOMM.CºSample Basic Program Appendix RTU Protocol IntroductionQuery Message TypesTransmission Sequence BroadcastStation Address Error Check FieldMessage Fields Function CodeTimeout Usage Character FormatMessage Termination Cyclic Redundancy Check CRC Generating PolynomialHardware Implementation of CRC-16 Software Calculation of CRC±16Example CRC±16 Calculation Address Function CRC±16Query or Broadcast Message Length Less CRC Code RTU Message LengthFunction Code And Name Response Message Length Less CRC CodeMessage Descriptions Message 01 Read Output Table FormatResponse Message 02 Read Input Table Format Message 03 Read Registers Format Message 04 Read Analog Inputs Format Message 05 Force Single Output Format Message 06 Preset Single Register Format Message 07 Read Exception Status Format Message 16 Preset Multiple Registers Format Message 17 Report Device Type Format Invalid Address Error Response Communication ErrorsInvalid Function Code Error Response Invalid Query MessageSerial Link Timeout Invalid Data Value Error ResponseQuery Processing Failure Error Response Invalid TransactionsAppendix Communications Using Windows DDE Limits of the Demonstration SoftwareFeatures of the Micro PLC DDE Driver Software Simple Demonstration using Microsoft Word Demonstration using Microsoft ExcelViewing PLC Data in Windows Viewing PLC Data in another DDE-compliant Application Writing Values to the PLC from another ApplicationOrdering Information Features Using the Display Software with Micro PLC NetOverview Appendix E Data Acquisition, Logging, and Display Program Equipment Required Startup Invoking DisplayDisplay Software Menus Auto Polling OperationChanging the Screen Colors Editing Summary Manual Mode Data FormatEntering Manual Mode Reading One Word of Input, Output, or Register DataReading Multiple Bytes of Input, Output, or Register Data Creating a Bank of Registers for Downloading Data Writing Data to the Registers 15,T,1Creating or Editing Autopolling Screens Naming an Auto-polling Screen FileSpecifying an Existing File to Edit Creating an Auto-polling Screen Setup for Data Logging During Auto-Polling Formatting Strings for Auto-polling ScreensText for Auto-polling Screens Data Display String Format ± &XYYYYYZN FormatExample Data Limits Format ± &L,X,YYYYY,LowLimit,Hilimit HilimitColors/logtime setup format ± &#,SC,BC,LT #,SC,BC,LTSystem Messages Creating or Editing System MessagesSpecifying the Device to Control System Message Display Auto-Polling During System Operation Executing an Auto-polling ScreenWriting a Value to a Register Changing the DisplayPrinting the Screen Forcing an Output.LOG File Data LoggingHow Data Logging Works Renaming the .LOG File to Prevent Overwriting DataData Type Table, Reference, Data Value Format of Logged DataTime Stamp Year, Month, Day, Hour, Minutes, Seconds Target IDError Messages During Operation Error Writing to Device COM1Appendix ProgrammingApplications Application #1 Flip / Flop Toggle Operation Application #2 Power Up One Shot Start±up Protection Application #3 Cascading Counters Application #4 Industrial ªStarting Circuitº +±± ±±+±±/±±+±±±±±±±±±±+±±±±±±±+±±±±±±±+±± ±± Index Index-2 Index-3