Documentation

MbusMasterFunctionsmaskWriteRegister Method

Modbus function 22 (16 hex), Mask Write Register.

Namespace:  FieldTalk.Modbus.Master
Assembly:  FieldTalk.Modbus.Master (in FieldTalk.Modbus.Master.dll) Version: 2.15.2-eval+3d8362b4bb861c05760d48b11d303e954bb8597c
Syntax
Copy
public int maskWriteRegister(
	int slaveAddr,
	int regAddr,
	short andMask,
	short orMask
)

Parameters

slaveAddr
Type: SystemInt32
Modbus address of slave device or unit identifier (Range: 1 - 255)
regAddr
Type: SystemInt32
Register address (Range: 1 - 65536)
andMask
Type: SystemInt16
Mask to be applied as a logic AND to the register
orMask
Type: SystemInt16
Mask to be applied as a logic OR to the register

Return Value

Type: Int32
BusProtocolErrors.FTALK_SUCCESS on success or error code. See BusProtocolErrors for possible error codes.
Remarks
Masks bits according to an AND and an OR mask into a single output register (holding register, 4:00000 reference). Masking is done as follows: retVal = (currentVal AND andMask) OR (orMask AND (NOT andMask))
Note Note
No broadcast supported
See Also