Special Relays, Special Registers | Mitsubishi Electronics FR-A700

Special Relays, Special Registers

3.12 Special Relays, Special Registers

Special relays and special registers are internal relays and data registers, respectively, whose applications are predetermined by the built-in PLC functions.

They have the following main applications.

(1)Sequence operation check

The special relays and special registers can be used to: (a)Check the operating status (RUN/STOP)

(b)Detect a fault by the self-diagnostic function (c)Detect an operation error

(d)Check the scan time

(2)Timing contact

There are special relays that can be used in a sequence program and differ in operating status.

(a)Normally ON/OFF flag (b)RUN flag (OFF for 1 scan)

(c)Initial processing flag (ON for 1 scan)

REMARKS

For the special relays and special registers usable with the built-in PLC function, refer to page 10.

SEQUENCE PROGRAMMING

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Mitsubishi Electronics FR-A700, 700 Series specifications Special Relays, Special Registers

Contents

Communication Sequence Programming Error Code ListPLC Function Inverter Status Monitoring, Special Registers for Control Analog I/O functionPaluse train input function PID control Device Map CC-Link I/O Specifications Buffer Memory CC-Link ParametersOverview Program Makeup Programming Languages Counters C Function ListKeyword Registration Bit Device Processing Method How to Read the Error Code 172 Basic Instructions 140155 171 Using GX Developer for RS-485 Communication PLC Function Function Block Diagram PLC Function Specifications A700 Sequence Section System Configuration System configuration exampleCommunication specifications Support GX Developer ver.8.0 or more GX Developer Setting Type Maker Usable main GX Developer functions Precautions for sequence program creationPrior to Sequence Program Creation Sequence program execution key Sequence program write Setting list of built-in PLC function parameter GX Developer Default Setting Range Usable device range Device Name Remarks Device Map1 I/O device map RAM Internal relay M device map Data register D device mapSpecial relays M0 to M63 Device Map Special registers Name Description Map Inverter operation Input terminal D9205 For control D9206 Special registers D9207 PID Device Name Setting Data Example Data that can be read at all timesOperation monitor Unit Condition Data Alarm definition read program example Error No Error Name Details Operation mode setting read program example Data read timing chartOperation mode setting read D9140 Set frequency RAM D9141 Set frequency RAM read program exampleSet frequency Eeprom D9142 Set frequency read Eeprom program example Data write timing chart Device Name Operation mode setting write program example Operation mode setting write D9143 Data are as followsWhen Pr =2, switching is performed as shown below Following program changes the set frequency RAM to 30Hz Set frequency RAM D9144Set frequency write RAM program example Following program changes the set frequency Eeprom to 10Hz Set frequency Eeprom D9145Set frequency write Eeprom program example Following program batch-clears the alarm history Alarm definition batch clear D9146Alarm definition batch clear program example Device No Setting Description Details Parameter clear D9147All parameter clear program example Following program clears all parameters Inverter operation status control D9148 Device No Name Data Access Enable ConditionInverter operation status control B15 B12B11 B8B7 B4B3 1 1 1 1 1 1 1 1 1 Invalid Inverter parameter access error D9150 Inverter status D9151Parameter Hffff is stored into D9150. Normal Inverter Parameter Read/Write Method Reading the inverter parameters Inverter parameter data read timing chart Writing the inverter parameters Inverter parameter data write timing chart Device Inverter Initial Setting Minimum Setting User Area Read/Write MethodUser parameter read/write method Range Unit Device Terminal Name Setting Analog I/O functionAnalog input Analog output Parameter Name Initial Setting Description Value Range Device No Name Setting Description RangePaluse train input function Selection Parameter Name Initial Value Setting Description RangePID control Device No Name Setting Description Range Setting Description Inverter Operation Lock Mode SettingName Initial Setting Minimum Setting Range Unit Memo Communication System configuration example Function block diagram CPU PLC CPU CC-Link Extended Setting Pr Parameter Initial Setting Name CC-Link Description NumberCC-Link Parameters Remote register function can be extended CC-Link I/O Specifications Remote I/O Address Description Remote resisterData I/O image RAM, Eeprom Address Description Upper Bits Same as when Pr = 112 Refer to RWrn+7 Sixth monitor value RWwn+8 PLC function Remote output signals Master module to inverterFR-A7NC Buffer MemoryStation Buffer Memory Address Station Buffer F2H Remote registers Pr.544=100 Master module to inverterFR-A7NC Station Buffer Memory Address Remote registers Pr.544=100 InverterFR-A7NC to master module Processing Method Scan Time Instruction FormatOperation Processing Method of PLC Function Numerical Values Usable in Sequence Program Overview Outline of Operation Processings Operation Processings of Built-in PLC function END processing RUN and Stop Operation Processings Program Makeup Ladder Blocks Relay symbolic language Ladder modeProgramming Languages Operation Processing Sequence Logic symbolic language List mode Logic symbolic language Operation Processing Method of PLC Function Operation Processing Method of Built-in PLC Function Control system is a refresh system What is refresh system?I/O Processing Method Response delay in refresh system When Y1E turns on earliestWhen Y1E turns on latest Ladder example Scan Time Numerical Values Usable in Sequence Program Decimal Code Hexadecimal Code Binary Code BIN Binary Code DEC Decimal Code BIN Binary Code HEX HEX Decimal Description of devices Device List Inputs, Outputs X, Y 10 Inputs X, Outputs Y Inputs Outputs Y Internal Relays M 14 Internal Relay Timers T 5 100ms, 10ms and 100ms retentive timers15 Timing Chart Timing chart Timer processing method and accuracy 16 Timing Chart Timer timing method Counters C 18 Count Ladder Counting method Count processing in refresh system19 Counter Counting Method Maximum counting speed of counter Data Registers D Special Relays, Special Registers Special Application/Description Relay Function List Function Description 21 Timing Chart for RUN/STOP Using Remote RUN Contact Refer to the GX Developer manual for details Stop RUN/STOP Watchdog Timer Operation clog up monitor timer Self-diagnostic Function Error-time operation mode CPU Status Error Definition Operation Keyword Registration YES Instruction Format Source S Specify the numerical value to be used forProgram creation, it is fixed and cannot be Changed during program execution 25 Digit Designation Setting Range for 16-bit Instruction Bit Device Processing Method20.1 1-bit processing Digit designation processing 27 Ladder Examples and Processingse Numerical value setting method 1 Decimal number Handling of Numerical ValueHexadecimal number Decimal Notation Hexadecimal Notation Operation Error Error processing How to use the instruction list Indicates the symbol used in the ladder diagramInstructions List Indicates Destination Operation result Symbol Execution Condition Symbol Processing 23.2 Sequence instruction 106 Basic instructions OR= ∗ P Application instructions , the instructions are described in the following format Description of the InstructionsDescription Sequence Instructions LD, LDI, AND, ANI, OR, ORI Functions Execution ConditionsLD, LDI AND, ANI ANI , or , ORI Program ExamplesLD , LDI , Block a Block B ANB ORB Program Examples ANB, ORB 118 119 MPP MPSMRD 121 MPS , MRD , MPP Program using MPS, MRD and MPPProgram Example Output Instructions Bit device, timer, counter ... OUT OUT Instruction Operation Result Coil Contacts Contact OuttOutc Program that outputs to the output module Program ExamplesOUT Output Instructions Device set, reset ... SET, RST SETRST Device Status Operations of SET and RST instructions SET and RST instructions are executed every scanSET , RST Program that resets the data register contents to Program that resets the 100ms retentive timer and counter PLS Digit Flag PLF Program that executes the PLS instruction when X9 turns onProgram that executes the PLF instruction when X9 turns off Shift Instructions Bit device shift ... SFT, Sftp SFT Program that shifts the Y7 B data when X8 turns onProgram Example Master Control Instructions Master control set, reset MC, MCR 134 Display in ladder mode MCR 136 End Instruction Sequence program end ... END Other Instructions No operation ... NOP NOP Contact short-circuit AND, ANI Symbol Basic InstructionsComparison Operation Instructions Instruction 141 S1 = S2 S1 S2S1 ≤ S2 S1 ≠ S2 S1 = S2 S1 ≤ S2 Program that compares the X0-F data and D3 data Program that compares the BCD value 100 and D3 dataProgram that compares the BIN value 100 and D3 data Program that compares the D0 and D3 data Arithmetic Operation Instructions 145 146 Is made at the highest bit b15 Addition/subtraction command 149 150 151 Operation Errors Data Transfer Instructions Data Transfer Instructions Bit data transfer ... MOV, MovpData transfer instructions are designed to transfer data MOV Program that stores 155 into D8 in binary when X8 turns on Program that stores the input X0-B data into D8 Application instructions Logical Operation Instructions Wand Wand 157 158 WOR WOR P 161 Wxor Wxorp Wxor 164 Wxnr Wxnr Wxnr P 167 168 NEG Negp 170 Error Code List Definition and Cause Corrective Action How to Read the Error CodeError Error Name Code 173 Memo Appendix Appendix1 Instruction Processing Time Device 177 Revisions Print Date Manual Number Revision