Thermocouple reading in 9219

[JKV999]

Hi,

I am using 9219 module in crio to read thermocouple voltage. In the module CH0 is set to thermocouple and calibrated mode of operation. While creating XML file the fixed point word length = 32 and Fixed point word integer length = -1 has been set for CH0 under AI according to the data type of CH0. But when i read the CHO it gives output as -INF(infinity). What's wrong here..?? I am using J type thermocouple and I can successfully read the tempeartue using daqmx APIs that means the thermocouple is working fine.

How can I covert the thermocouple voltage readings into temperature(degrees) in veristand with 9219 module..?? In workspace I could see the scaling&calibrated chanels under tools which shows only some of the c series modules like 9211 and 9213 not 9219....??

[StephenB]

both of these issues have been resolved in NI VeriStand 2011. I recommend upgrading if that is possible

to work around the INF issue, set the integer length to 0 and use a scaling tag of 0.5 <Scale>0.5</Scale>

to work around the lack of channel scaling and calibration support for the 9219, you can enter a CJC constant into the tool or scale with a custom device or model