thermocouple and CJC

[New-guy]

Now I try to measure thermocouple temperature using SCXI-1302, and I also find some example, but each time when in CJC it ask me select channel or constant value, and I wish use SCXI-1112's own thermistor, but each time when I figure the CJC channel, it failed and said I can't defined virtual channel by myself, so I wish to know how to define the CJC channel.
Thanks

New-guy

[Spencer S.]

New-guy,

I am not sure that I have a clear understanding of your application. Are you trying to read a thermocouple with one of the analog input channels on your DAQ device through an SCXI-1180 with an SCXI-1302 terminal block? Furthermore, do you also have an SCXI-1112 in your chassis, and you want to use one of the CJC sensors from this module as the CJC channel for this thermocouple measurement? This should be possible. I have a couple more questions. Are you also acquiring from the SCXI-1112's thermocouple channels? Where are you receiving this error, and what is the exact error message? Which example are you using?

Let me know.

Spencer S.