Documentation

MbusMasterFunctionswriteCoil Method

Modbus function 5 (05 hex), Force Single Coil/Write Coil.

Namespace:  FieldTalk.Modbus.Master
Assembly:  FieldTalk.Modbus.Master (in FieldTalk.Modbus.Master.dll) Version: 2.15.2-eval+3d8362b4bb861c05760d48b11d303e954bb8597c
Syntax
Copy
public int writeCoil(
	int slaveAddr,
	int bitAddr,
	bool bitVal
)

Parameters

slaveAddr
Type: SystemInt32
Modbus address of slave device or unit identifier (Range: 0 - 255)
bitAddr
Type: SystemInt32
Coil address (Range: 1 - 65536)
bitVal
Type: SystemBoolean
true sets, false clears discrete output variable

Return Value

Type: Int32
BusProtocolErrors.FTALK_SUCCESS on success or error code. See BusProtocolErrors for possible error codes.
Remarks
Sets a single discrete output variable (coil, 0:00000 table) to either ON or OFF.
Note Note
Broadcast supported for serial protocols
See Also