MbusMasterFunctionsreadFileRecord Method (Int32, MbusMasterFunctionsFileSubRequest)

Modbus function 20, Read File Record.

Namespace: FieldTalk.Modbus.Master
Assembly: FieldTalk.Modbus.Master (in FieldTalk.Modbus.Master.dll) Version: 2.15.2-eval+3d8362b4bb861c05760d48b11d303e954bb8597c

Syntax

C++

Copy

public int readFileRecord(
	int slaveAddr,
	MbusMasterFunctionsFileSubRequest[] subReqArr
)

Public Function readFileRecord ( 
	slaveAddr As Integer,
	<OutAttribute> subReqArr As MbusMasterFunctionsFileSubRequest()
) As Integer

public:
int readFileRecord(
	int slaveAddr, 
	[InAttribute] [OutAttribute] array<MbusMasterFunctionsFileSubRequest>^ subReqArr
)

Parameters

slaveAddr: Type: SystemInt32
Modbus address of slave device or unit identifier (Range: 0 - 255)
subReqArr: Type: FieldTalk.Modbus.MasterMbusMasterFunctionsFileSubRequest
Array with list of subrequests (Range 1-35)

Return Value

Type: Int32
BusProtocolErrors.FTALK_SUCCESS on success or error code. See BusProtocolErrors for possible error codes.

Remarks

Performs a file record read for a list of subrequests.

Note
No broadcast supported

Reference

MbusMasterFunctions Class

readFileRecord Overload

FieldTalk.Modbus.Master Namespace