RTD_ReadRaw

 

This function code is used to read the temperature raw data for a specific channel.

 

C/C++

int RTD_ReadRaw( int hConnection,

BYTE bytSlot,

BYTE bytChannel,

WORD * wValue);

 

Visual Basic

Declare Function RTD_ReadRaw Lib "MXIO.dll" (ByVal hConnection As Long, ByVal bytSlot As Byte, ByVal bytChannel As Byte, iValue As Integer) 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.

bytChannel

The specific channel to be read.

wValue

An pointer that stores the temperature value to be read. When the wValue is 0x7FFF, it means the sensor is not wired correctly, or the measured value is out of range.

When using the RTD module for Resistance Input 1~2000Ω, 100mΩ/1count.

When using the RTD module for Resistance Input 1~327Ω, 10mΩ/1count.

When using the RTD module for Resistance Input 1~620Ω, 20mΩ/1count.

When the operating mode is temperature sensor, 0.1C(F)/1count, depending on the setting. Check the ioAdmin utility for current settings.

Return Value:

Succeed

MXIO_OK

Fail

Refer to Return Codes.