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GE GFK-0804B manual Chapter Programming for the Micro PLC

Models: GFK-0804B

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Chapter

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Programming for the Micro PLC

This chapter is an introduction to programming the Micro PLC.

HProgramming Basics

HPLC Programs

h Power Flow in a Program

HThe Micro PLC Instruction Set

HProgramming Devices and Formats

h Programming with the Programming Software h Programming on a Hand-held Programmer

HMemory Types and Addresses h Memory Map

h Non-retentive and Retentive Registers h Reserved Registers

h Constants and Register Values in a Program

HSpecial Coils

h 0.1 Sec Clock (C1018)

h Start-up Scan Coil (C1019) h Hold Output Coil (C1021)

HProgramming for an Analog Expander Unit h Analog Scaling

h Analog References

h Programming Examples

GFK-0804B

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GE GFK-0804B manual Chapter Programming for the Micro PLC

Contents

GE Fanuc Automation GFL±002 Related Publications Content of this ManualPreface 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 Device Designation Programming BasicsPLC Programs Power Flow in a ProgramMicro PLC Instruction Set Programming Devices and Formats Programming with the Programming SoftwareProgramming on a Hand-held Programmer Constants and Register Values in a Program Memory Types and AddressesMemor y Map Non-retentive and Retentive RegistersSec Clock C1018 Special CoilsStart-up Scan Coil C1019 Hold Output Coil C1021Analog Scaling Programming for an Analog Expander UnitAnalog References Maximum ValuesExample #1 Programming ExamplesChapter Programming with the Programming Software Programming Operations Using the Programming FunctionsProgramming 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 Selecting a Rung to Edit Editing a Completed RungEditing a Rung Element Deleting a Rung ElementAdding a Program Function to a Rung Adding a Contact to a RungReplacing a Rung Element with a Horizontal Line Replacing a Rung Element with a Similar ElementReplacing a Rung Element with a Dissimilar Element Moving Rungs Deleting RungsCopying Rungs Searching for a Rung or Program Element Chapter Programming with a Hand-held Programmer Program Transfer Program ListingHand-Held Programmer Key Operation and Displays Entering Program LogicInserting 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 Instruction Set Summary Operation Ladder Symbol DescriptionMicro PLC Instruction Set General Programming Software Instructions for Contacts ContactsProgramming Software Instructions Normally- Open ContactExamples and HHP Instructions Programming Normally-Open Contact at the Start of a RungProgramming a Normally-Open Contact in Parallel Programming a Normally-Open Contact in SeriesProgramming Normally-Closed Contact at the Start of a Rung Normally- Closed ContactProgramming a Normally-Closed Contact in Parallel Programming a Normally-Closed Contact in SeriesExample and HHP Instructions Positive Transition ContactExample and HHP Instructions Negative Transition ContactUsing Coil Pairs CoilsGeneral Programming Software Instructions for Coils Output Coil Set/Reset Coil Pair ResetExample and HHP Instructions Set End Master Control Relay/End Coil PairSkip Skip/End Coil PairProgramming Software Instructions for Timers TimersEnter the other logic required by the Timer 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 Addition ADD Math FunctionsMaximum Total AdditionR1+R2 ! R3 R1+ 1! R4 1st number 2nd number Total in register Subtraction SUBR1± 5! R2 R3±R4 ! R5 Examples Multiplication MULR1 x R2! R3 Whole # Remainder Division DIVDivide Using Division and Multiplication Functions TogetherMove Move FunctionsMove Select Move F5 from the Math/Move function keysLadder Diagram Hand-held Programmer R001 0002 R004 R010 R020 R100 Block MoveR1E 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 Examples Compare FunctionsEqual GreaterPress Enter to add the function to the program Not Logic OperationsWord Inclusive or IOR Exclusive or XOR Entering the Number of Positions to Shift Shift Register RightShift Register Left Not Loading and Saving Files Appendix Using DirectoriesUsing the Change Directory Function MICRO.CFG FileHints for a Basic Application CMD\MICRO\PALLET CMD\MICRO\RIVETER CMD\MICRO\TRANSFER Hints for an Advanced ApplicationAppendix Micro PLC Protocol Communications Files Communications Parameters Communications Memory Types and AddressesMemory Addresses Special RegistersData Format Communications ProtocolRead Discretes ReplyRead Program Memory Read AnalogsWrite Discretes Write AnalogsWrite Program Memory Read StatusStatus Word Error codes Error ReplyStart Program Stop ProgramMicrosoft C Large Model Compile w/ -AL Option Communications FunctionsMicrosoft 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 #include dos.h #include stdio.h #include ªMCROCOMM.Cº Sample ProgramsSample Basic Program Introduction Appendix RTU ProtocolTransmission Sequence Message TypesQuery BroadcastMessage Fields Error Check FieldStation Address Function CodeTimeout Usage Character FormatMessage Termination Generating Polynomial Cyclic Redundancy Check CRCSoftware Calculation of CRC±16 Hardware Implementation of CRC-16Address Function CRC±16 Example CRC±16 CalculationFunction Code And Name RTU Message LengthQuery or Broadcast Message Length Less CRC Code 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 Function Code Error Response Communication ErrorsInvalid Address Error Response Invalid Query MessageQuery Processing Failure Error Response Invalid Data Value Error ResponseSerial Link Timeout Invalid TransactionsLimits of the Demonstration Software Appendix Communications Using Windows DDEFeatures of the Micro PLC DDE Driver Software Demonstration using Microsoft Excel Simple Demonstration using Microsoft WordViewing PLC Data in Windows Viewing PLC Data in another DDE-compliant Application Writing Values to the PLC from another ApplicationOrdering Information Using the Display Software with Micro PLC Net FeaturesOverview Appendix E Data Acquisition, Logging, and Display Program Equipment Required Invoking Display StartupAuto Polling Operation Display Software MenusChanging the Screen Colors Editing Summary Data Format Manual ModeEntering 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 15,T,1 Writing Data to the RegistersCreating 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 Hilimit Data Limits Format ± &L,X,YYYYY,LowLimit,Hilimit#,SC,BC,LT Colors/logtime setup format ± &#,SC,BC,LTCreating or Editing System Messages System MessagesSpecifying the Device to Control System Message Display Executing an Auto-polling Screen Auto-Polling During System OperationPrinting the Screen Changing the DisplayWriting a Value to a Register Forcing an OutputHow Data Logging Works Data Logging.LOG File Renaming the .LOG File to Prevent Overwriting DataTime Stamp Year, Month, Day, Hour, Minutes, Seconds Format of Logged DataData Type Table, Reference, Data Value Target IDError Writing to Device COM1 Error Messages During OperationAppendix 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