E42_RTD_Reads
This function code is used to read the temperature value for contiguous channels.
C/C++
int E42_RTD_Reads( int hConnection,
BYTE bytSlot,
BYTE bytStartChannel,
BYTE bytCount,
double dValue[ ]);
Visual Basic
Declare Function E42_RTD_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 16. 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 temperature value to be read. The dValue[0] represents the start channel. When the dValue is 0x8000, it means the sensor is not wired correctly, or the measured value is out of range. When using the E42_RTD module for Resistance Input, the unit is Ohm. When the operating mode is temperature sensor, the unit is C or F, depending on the setting. Check the ioAdmin utility for current settings. |
Return Value:
Succeed |
MXIO_OK |
Fail |
Refer to Return Codes. |