Daitsu FMCD*ECM series - Open Modbus Protocol

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SK2014‐SON‐002‐TechMnl‐FMCD‐003
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C.5. OpenModbusprotocol
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TransferMode:RTU,BAUDRate:9600bps,8databit,1stopbit,Noneparitybit
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Thecommunicationsrequireadelayof80msbetweenreadingananswerandsendingthenextcommand.Alltemperaturesare
equaltoreadingdata*10accuracy:0.1degreeC.
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SupportedFunctions:
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FunctionCode FunctionDescription
01(01H) ReadCoils
02(02H) ReadDiscreteInputs
03(03H) ReadHoldingRegisters
04(04H) ReadInputRegisters
05(05H) WriteSingleCoil
06(06H) WriteSingleRegister
15(0FH) WriteMultipleCoils
16(10H) WriteMultipleRegisters
255(FFH) ExtendedCommandswhichare usedtotest unit
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ValidErrorcodetable:
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Errorcode Description Definition
01(01H) Invalidcommands Receivedcommandsbeyondvalidcommands
02(02H) Invaliddataaddress Dataaddressesbeyondvaliddataaddress
03(03H) Invaliddata Databeyonddefinitionrange
04(04H) Writedatanotsuccessful Writedatadid notsucceed