FieldTalk™ Modbus Master .NET Library

MbusMasterFunctions.writeCoil Method 

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

[Visual Basic]
Public Function writeCoil( _
   ByVal slaveAddr As Integer, _
   ByVal bitAddr As Integer, _
   ByVal bitVal As Boolean _
) As Integer
[C#]
public int writeCoil(
   int slaveAddr,
   int bitAddr,
   bool bitVal
);

Parameters

slaveAddr
Modbus address of slave device or unit identifier (Range: 0 - 255)
bitAddr
Coil address (Range: 1 - $10000)
bitVal
true sets, false clears discrete output variable

Return Value

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    Broadcast supported for serial protocols

See Also

MbusMasterFunctions Class | FieldTalk Namespace