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Mitsubishi Electronics FR-A700 Programming Languages, Relay symbolic language Ladder mode

Models: FR-A700 700 Series

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Programming Languages

3.4 Programming Languages

The built-in PLC function has two different programming methods: one that uses ladders and the other that uses dedicated instructions.

•Programming that uses ladders is performed in the relay symbolic language. *1

•Programming that uses dedicated instructions is performed in the logic symbolic language. *2

Whether the relay symbolic language or logic symbolic language is used, the same program is created.

REMARKS

*1. When using GX Developer for programming, perform programming in the "ladder mode".

*2. When using GX Developer for programming, perform programming in the "list mode".

3.4.1Relay symbolic language (Ladder mode)

The relay symbolic language is based on the concept of a relay control circuit.

You can perform programming in the representation close to the sequence circuit of relay control.

(1)Ladder block

A ladder block is the minimum unit for performing sequence program operation. It starts with the left hand side vertical bus and ends with the right hand side vertical bus.

Left hand side vertical bus

Right hand side vertical bus

Step number

Ladder blocks

*X0 to X5: Indicate inputs.

Y10 to Y14: Indicate outputs.

Fig 3.2 Ladder Blocks

SEQUENCE PROGRAMMING

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Mitsubishi Electronics FR-A700, 700 Series Programming Languages, Relay symbolic language Ladder mode, Ladder Blocks

Contents

PLC Function Error Code ListCommunication Sequence Programming Paluse train input function PID control Inverter Status Monitoring, Special Registers for ControlAnalog I/O function Device MapOverview CC-Link I/O Specifications Buffer MemoryCC-Link Parameters Program Makeup Programming LanguagesKeyword Registration Counters CFunction List Bit Device Processing Method155 How to Read the Error Code 172Basic Instructions 140 171Using GX Developer for RS-485 Communication PLC FunctionFunction Block Diagram PLC Function Specifications A700 Sequence SectionCommunication specifications System ConfigurationSystem configuration example Support GX Developer ver.8.0 or more GX Developer SettingType MakerPrior to Sequence Program Creation Precautions for sequence program creationUsable main GX Developer functions Sequence program execution key Sequence program write Setting list of built-in PLC function parameter GX Developer Default Setting Range Usable device range1 I/O device map Device MapDevice Name Remarks RAM Special relays Internal relay M device mapData register D device map M0 to M63Device Map Special registers Name DescriptionMap Inverter operation Input terminal D9205 For control D9206 Special registers D9207 PID Operation monitor Device Name Setting Data ExampleData that can be read at all times Unit ConditionData Alarm definition read program example Error No Error Name DetailsOperation mode setting read D9140 Data read timing chartOperation mode setting read program example Set frequency Eeprom D9142 Set frequency RAM D9141Set frequency RAM read program example Set frequency read Eeprom program exampleData write timing chart Device NameWhen Pr =2, switching is performed as shown below Operation mode setting write D9143 Data are as followsOperation mode setting write program example Set frequency write RAM program example Set frequency RAM D9144Following program changes the set frequency RAM to 30Hz Set frequency write Eeprom program example Set frequency Eeprom D9145Following program changes the set frequency Eeprom to 10Hz Alarm definition batch clear program example Alarm definition batch clear D9146Following program batch-clears the alarm history All parameter clear program example Device No Setting Description DetailsParameter clear D9147 Following program clears all parametersInverter operation status control Device No Name Data Access Enable ConditionInverter operation status control D9148 B15 B12B11 B8B7 B4B3 1 1 1 1 1 1 1 1 1 Invalid Parameter Inverter parameter access error D9150Inverter status D9151 Hffff is stored into D9150. NormalInverter Parameter Read/Write Method Reading the inverter parametersInverter parameter data read timing chart Writing the inverter parameters Inverter parameter data write timing chart User parameter read/write method Device Inverter Initial Setting Minimum SettingUser Area Read/Write Method Range UnitAnalog input Device Terminal Name SettingAnalog I/O function Analog outputPaluse train input function Parameter Name Initial Setting Description Value RangeDevice No Name Setting Description Range SelectionPID control Setting Description RangeParameter Name Initial Value Device No Name Setting Description Range Name Initial Setting Minimum Setting Range Unit Inverter Operation Lock Mode SettingSetting Description Memo Communication System configuration example Function block diagram CPUPLC CPU CC-Link Parameters CC-Link Extended Setting PrParameter Initial Setting Name CC-Link Description Number Remote register function can be extendedCC-Link I/O Specifications Remote I/OData I/O image Remote resisterAddress Description RAM, Eeprom Address Description Upper BitsSame as when Pr = 112 Refer to RWrn+7 Sixth monitor value RWwn+8 PLC function Station Buffer Memory Remote output signals Master module to inverterFR-A7NCBuffer Memory AddressStation Buffer F2HRemote registers Pr.544=100 Master module to inverterFR-A7NC Station Buffer Memory AddressRemote registers Pr.544=100 InverterFR-A7NC to master module Operation Processing Method of PLC Function Processing Method Scan TimeInstruction Format Numerical Values Usable in Sequence ProgramOverview Outline of Operation ProcessingsOperation Processings of Built-in PLC function END processingRUN and Stop Operation Processings Program MakeupProgramming Languages Relay symbolic language Ladder modeLadder Blocks Operation Processing Sequence Logic symbolic language List mode Logic symbolic languageOperation Processing Method of PLC Function Operation Processing Method of Built-in PLC FunctionI/O Processing Method What is refresh system?Control system is a refresh system When Y1E turns on latest Response delay in refresh systemWhen Y1E turns on earliest Ladder exampleScan Time Numerical Values Usable in Sequence Program Decimal Code Hexadecimal Code Binary CodeBIN Binary Code DEC Decimal Code BIN Binary CodeHEX HEX Decimal Description of devices Device ListInputs, Outputs X, Y 10 Inputs X, Outputs YInputs Outputs Y Internal Relays M 14 Internal Relay15 Timing Chart Timers T5 100ms, 10ms and 100ms retentive timers Timing chartTimer processing method and accuracy 16 Timing ChartTimer timing method Counters C 18 Count Ladder19 Counter Counting Method Count processing in refresh systemCounting method Maximum counting speed of counter Data Registers D Special Relays, Special Registers Special Application/Description Relay Function List Function Description21 Timing Chart for RUN/STOP Using Remote RUN Contact Refer to the GX Developer manual for detailsStop RUN/STOP Watchdog Timer Operation clog up monitor timer Self-diagnostic Function Error-time operation mode CPU Status Error Definition OperationKeyword Registration YES Instruction Format Program creation, it is fixed and cannot be Source SSpecify the numerical value to be used for Changed during program execution20.1 1-bit processing 25 Digit Designation Setting Range for 16-bit InstructionBit Device Processing Method Digit designation processing27 Ladder Examples and Processingse Hexadecimal number Numerical value setting method 1 Decimal numberHandling of Numerical Value Decimal Notation Hexadecimal NotationOperation Error Error processingInstructions List How to use the instruction listIndicates the symbol used in the ladder diagram Indicates Destination Operation resultSymbol Execution Condition Symbol Processing 23.2 Sequence instruction106 Basic instructions OR=∗ P Application instructions Description Description of the Instructions, the instructions are described in the following format Sequence Instructions LD, LDI, AND, ANI, OR, ORILD, LDI FunctionsExecution Conditions AND, ANILD , LDI , Program ExamplesANI , or , ORI Block a Block B ANB ORBProgram Examples ANB, ORB 118 119 MRD MPSMPP 121 Program Example Program using MPS, MRD and MPPMPS , MRD , MPP Output Instructions Bit device, timer, counter ... OUT OUT Instruction Operation Result Coil ContactsOutc OuttContact OUT Program ExamplesProgram that outputs to the output module RST Output Instructions Device set, reset ... SET, RSTSET Device StatusSET , RST SET and RST instructions are executed every scanOperations of SET and RST instructions Program that resets the data register contents to Program that resets the 100ms retentive timer and counterPLS Digit FlagProgram that executes the PLF instruction when X9 turns off Program that executes the PLS instruction when X9 turns onPLF Shift Instructions Bit device shift ... SFT, Sftp Program Example Program that shifts the Y7 B data when X8 turns onSFT Master Control Instructions Master control set, reset MC, MCR134 Display in ladder mode MCR136 End Instruction Sequence program end ... END Other Instructions No operation ... NOP NOPContact short-circuit AND, ANI Comparison Operation Instructions SymbolBasic Instructions Instruction141 S1 ≤ S2 S1 = S2S1 S2 S1 ≠ S2 S1 = S2 S1 ≤ S2Program that compares the BIN value 100 and D3 data Program that compares the X0-F data and D3 dataProgram that compares the BCD value 100 and D3 data Program that compares the D0 and D3 dataArithmetic Operation Instructions 145 146 Is made at the highest bit b15 Addition/subtraction command 149 150 151 Operation Errors Data transfer instructions are designed to transfer data Data Transfer InstructionsData Transfer Instructions Bit data transfer ... MOV, Movp MOVProgram that stores 155 into D8 in binary when X8 turns on Program that stores the input X0-B data into D8Application instructions Logical Operation InstructionsWand Wand157 158 WOR WOR P 161 Wxor Wxorp Wxor 164 Wxnr Wxnr Wxnr P167 168 NEG Negp170 Error Code List Error Error Name Code How to Read the Error CodeDefinition and Cause Corrective Action 173 Memo Appendix Appendix1 Instruction Processing Time Device177 Revisions Print Date Manual Number Revision