public int returnQueryData(
	int slaveAddr,
	byte[] queryArr,
	out byte[] echoArr
)

Public Function returnQueryData ( 
	slaveAddr As Integer,
	queryArr As Byte(),
	<OutAttribute> ByRef echoArr As Byte()
) As Integer

public:
int returnQueryData(
	int slaveAddr, 
	array<unsigned char>^ queryArr, 
	[OutAttribute] array<unsigned char>^% echoArr
)

Parameters

slaveAddr

Type: SystemInt32
Modbus address of slave device or unit identifier (Range: 1 - 255 for serial, 0 - 255 for TCP)

queryArr

Type: SystemByte
Buffer with data to be sent. The length of the array determines how many bytes are sent and returned

echoArr

Type: SystemByte
Buffer which will contain the data read

Return Value

Reference