Data.Modbus

Documentation

data ModRequest

Constructors

ReadCoils

Fields

readCoilsModReg :: ModRegister

readCoilsCnt :: Word16

ReadDiscreteInputs

Fields

readDiscreteInputsModReg :: ModRegister

readDiscreteInputsCnt :: Word16

ReadHoldingRegisters

Fields

readHoldingRegistersModReg :: ModRegister

readHoldingRegistersCnt :: Word16

ReadInputRegisters

Fields

readInputRegistersModReg :: ModRegister

readInputRegistersCnt :: Word16

WriteSingleCoil

Fields

writeSingleCoilModReg :: ModRegister

writeSingleCoilCnt :: Word16

WriteSingleRegister

Fields

writeSingleRegisterModReg :: ModRegister

writeSingleRegister :: Word16

WriteDiagnosticRegister

Fields

writeDiagnosticRegisterSubFcn :: Word16

writeDiagnosticRegisterDat :: Word16

WriteMultipleCoils

Fields

writeMultipleCoilsModReg :: ModRegister

writeMultipleCoilsQty :: Word16

writeMultipleCoilsCnt :: Word8

qWriteMultipleCoilsVal :: ByteString

WriteMultipleRegisters

Fields

writeMultipleRegistersModReg :: ModRegister

writeMultipleRegistersQty :: Word16

writeMultipleRegistersCnt :: Word8

writeMultipleRegistersVal :: ByteString

Instances

Show ModRequest

Serialize ModRequest

data ModResponse

Constructors

ReadCoilsResponse

Fields

readCoilsResponseCnt :: Word8

readCoilsResponseVal :: ByteString

ReadDiscreteInputsResponse

Fields

readDiscreteInputsResponseCnt :: Word8

readDiscreteInputsResponseVal :: ByteString

ReadHoldingRegistersResponse

Fields

readHoldingRegistersResponseCnt :: Word8

readHoldingRegistersResponseVal :: ByteString

ReadInputRegistersResponse

Fields

readInputRegistersResponseAddr :: Word8

readInputRegistersResponseVal :: ByteString

WriteSingleCoilResponse

Fields

writeSingleCoilResponseModReg :: ModRegister

writeSingleCoilResponseVal :: Word16

WriteSingleRegisterResponse

Fields

writeSingleRegisterResponseModReg :: ModRegister

writeSingleRegisterResponseVal :: Word16

WriteDiagnosticRegisterResponse

Fields

writeDiagnosticRegisterResponseSubFcn :: Word16

writeDiagnosticRegisterResponseDat :: Word16

WriteMultipleCoilsResponse

Fields

writeMultipleCoilsResponseModReg :: ModRegister

writeMultipleCoilsResponseVal :: Word16

WriteMultipleRegistersResponse

Fields

writeMultipleRegistersResponseModReg :: ModRegister

writeMultipleRegistersResponseVal :: Word16

ExceptionResponse FunctionCode ExceptionCode

UnknownFunctionResponse FunctionCode

Instances

Show ModResponse

Serialize ModResponse

data ModRequestFrame

Record naming scheme | q -> for request | r for response

modR -> mod register

Constructors

ModRequestFrame

Fields

qSlaveId :: SlaveId

qModRequest :: ModRequest

Instances

Show ModRequestFrame

Serialize ModRequestFrame

data ModResponseFrame

Constructors

ModResponseFrame

Fields

rSlaveId :: SlaveId

qModResponse :: ModResponse

Instances

Show ModResponseFrame

Serialize ModResponseFrame

data ExceptionCode

Constructors

IllegalFunction

IllegalDataAddress

IllegalDataValue

SlaveDeviceFailure

Acknowledge

SlaveDeviceBusy

MemoryParityError

GatewayPathUnavailable

GatewayTargetFailedToRespond

UnknownExceptionCode

Fields

getUnknownException :: Word8

Instances

Show ExceptionCode

Serialize ExceptionCode

mkException :: SlaveId -> ExceptionCode -> ByteString

matches :: ModRequest -> ModResponse -> Bool

Check that the given response is appropriate for the given request.

type ModRegister = Word16

type SlaveId = Word8

type FunctionCode = Word8