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modbus

module

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Versions in this module

v0

v0.3.0

Apr 21, 2021

v0.2.0

Apr 21, 2021

v0.1.0

Sep 19, 2018

Changes in this version

+ const ExceptionCodeAcknowledge

+ const ExceptionCodeGatewayPathUnavailable

+ const ExceptionCodeGatewayTargetDeviceFailedToRespond

+ const ExceptionCodeIllegalDataAddress

+ const ExceptionCodeIllegalDataValue

+ const ExceptionCodeIllegalFunction

+ const ExceptionCodeMemoryParityError

+ const ExceptionCodeServerDeviceBusy

+ const ExceptionCodeServerDeviceFailure

+ const FuncCodeMaskWriteRegister

+ const FuncCodeReadCoils

+ const FuncCodeReadDiscreteInputs

+ const FuncCodeReadFIFOQueue

+ const FuncCodeReadHoldingRegisters

+ const FuncCodeReadInputRegisters

+ const FuncCodeReadWriteMultipleRegisters

+ const FuncCodeWriteMultipleCoils

+ const FuncCodeWriteMultipleRegisters

+ const FuncCodeWriteSingleCoil

+ const FuncCodeWriteSingleRegister

+ type ASCIIClientHandler struct

+ func NewASCIIClientHandler(address string) *ASCIIClientHandler

+ func (mb *ASCIIClientHandler) Decode(adu []byte) (pdu *ProtocolDataUnit, err error)

+ func (mb *ASCIIClientHandler) Encode(pdu *ProtocolDataUnit) (adu []byte, err error)

+ func (mb *ASCIIClientHandler) Send(aduRequest []byte) (aduResponse []byte, err error)

+ func (mb *ASCIIClientHandler) Verify(aduRequest []byte, aduResponse []byte) (err error)

+ type Client interface

+ MaskWriteRegister func(address, andMask, orMask uint16) (results []byte, err error)

+ ReadCoils func(address, quantity uint16) (results []byte, err error)

+ ReadDiscreteInputs func(address, quantity uint16) (results []byte, err error)

+ ReadFIFOQueue func(address uint16) (results []byte, err error)

+ ReadHoldingRegisters func(address, quantity uint16) (results []byte, err error)

+ ReadInputRegisters func(address, quantity uint16) (results []byte, err error)

+ ReadWriteMultipleRegisters func(readAddress, readQuantity, writeAddress, writeQuantity uint16, value []byte) (results []byte, err error)

+ WriteMultipleCoils func(address, quantity uint16, value []byte) (results []byte, err error)

+ WriteMultipleRegisters func(address, quantity uint16, value []byte) (results []byte, err error)

+ WriteSingleCoil func(address, value uint16) (results []byte, err error)

+ WriteSingleRegister func(address, value uint16) (results []byte, err error)

+ func ASCIIClient(address string) Client

+ func NewClient(handler ClientHandler) Client

+ func NewClient2(packager Packager, transporter Transporter) Client

+ func RTUClient(address string) Client

+ func TCPClient(address string) Client

+ type ClientHandler interface

+ type ModbusError struct

+ ExceptionCode byte

+ FunctionCode byte

+ func (e *ModbusError) Error() string

+ type Packager interface

+ Decode func(adu []byte) (pdu *ProtocolDataUnit, err error)

+ Encode func(pdu *ProtocolDataUnit) (adu []byte, err error)

+ Verify func(aduRequest []byte, aduResponse []byte) (err error)

+ type ProtocolDataUnit struct

+ Data []byte

+ FunctionCode byte

+ type RTUClientHandler struct

+ func NewRTUClientHandler(address string) *RTUClientHandler

+ func (mb *RTUClientHandler) Decode(adu []byte) (pdu *ProtocolDataUnit, err error)

+ func (mb *RTUClientHandler) Encode(pdu *ProtocolDataUnit) (adu []byte, err error)

+ func (mb *RTUClientHandler) Send(aduRequest []byte) (aduResponse []byte, err error)

+ func (mb *RTUClientHandler) Verify(aduRequest []byte, aduResponse []byte) (err error)

+ type TCPClientHandler struct

+ func NewTCPClientHandler(address string) *TCPClientHandler

+ func (mb *TCPClientHandler) Close() error

+ func (mb *TCPClientHandler) Connect() error

+ func (mb *TCPClientHandler) Decode(adu []byte) (pdu *ProtocolDataUnit, err error)

+ func (mb *TCPClientHandler) Encode(pdu *ProtocolDataUnit) (adu []byte, err error)

+ func (mb *TCPClientHandler) Send(aduRequest []byte) (aduResponse []byte, err error)

+ func (mb *TCPClientHandler) Verify(aduRequest []byte, aduResponse []byte) (err error)

+ type Transporter interface

+ Send func(aduRequest []byte) (aduResponse []byte, err error)