AI_Reads

 

This function code is used to read contiguous channel's analog input value.

 

C/C++

int AI_Reads( int hConnection,

BYTE bytSlot,

BYTE bytStartChannel,

BYTE bytCount,

double dValue[ ]);

 

Visual Basic

Declare Function AI_Reads Lib "MXIO.dll" (ByVal hConnection As Long, ByVal bytSlot As Byte, ByVal bytStartChannel As Byte, ByVal bytCount As Byte, dValue As Double) As Long

 

Arguments:

hConnection

The handle for an I/O device connection.

bytSlot

Slot number of the I/O module. The Slot number ranges from 1 to 32. But this parameter is inactive in ioLogik 2000.

bytStartChannel

Specifies the starting channel.

bytCount

The number of channels to be read.

dValue

An array that stores the contiguous A/I channel's value, dValue[0] represents the value of the starting channel. The unit is Vdc for the voltage module, and mA for the current module.

 

Return Value:

Succeed

MXIO_OK

Fail

Refer to Return Codes.