ModbusFunctionCode Enum

Namespace: GHIElectronics.TinyCLR.Devices.Modbus · Assembly: GHIElectronics.TinyCLR.Devices.Modbus

Modbus function codes

public enum ModbusFunctionCode : byte

Fields

Name	Value	Description
ReadCoils	0x01	Read colis (input/output bits)
ReadDiscreteInputs	0x02	Read discrete inputs (input bits)
ReadHoldingRegisters	0x03	Read holding registers (input/output registers)
ReadInputRegisters	0x04	Read input registers
WriteSingleCoil	0x05	Write single coil (input/output bit)
WriteSingleRegister	0x06	Write single registers (input/output register)
ReadExceptionStatus	0x07	Read exception status
Diagnostics	0x08	Diagnostics
GetCommEventCounter	0x0b	Get comm event counter
GetCommEventLog	0x0c	Get comm event log
WriteMultipleCoils	0x0f	Write multiple coils (input/output bits)
WriteMultipleRegisters	0x10	Write multiple registers (input/output registers)
ReadWriteMultipleRegisters	0x17	Read write multiple registers (input/output regsiters) The Write operation is performed first.
ReadDeviceIdentification	0x2b	Read device identification
ReadDeviceIdentification2	0x0e	Read device identification (again !?)