08-21-2017 03:33 PM
I have a need to perform my own CJC with a cRIO and 9212, and I was wondering how I can do that using the Scan Engine. I came across this, http://zone.ni.com/reference/en-XX/help/373197G-01/criodevicehelp/crio-9212_rt/ and it mentions "The Scan Interface applies cold-junction compensation to NI 9212 data returned in temperature units." What it doesn't mention is if I select "Raw Volts" under the modules properties is uncompensated or not. I am assuming that it isn't compensated and free for me to do my own compensation if I select the Raw Volts option.
08-21-2017 04:46 PM
@JaRay200 wrote:
I have a need to perform my own CJC with a cRIO and 9212, and I was wondering how I can do that using the Scan Engine. I came across this, http://zone.ni.com/reference/en-XX/help/373197G-01/criodevicehelp/crio-9212_rt/ and it mentions "The Scan Interface applies cold-junction compensation to NI 9212 data returned in temperature units." What it doesn't mention is if I select "Raw Volts" under the modules properties is uncompensated or not. I am assuming that it isn't compensated and free for me to do my own compensation if I select the Raw Volts option.
Possibly, that could have been worded just a bit better in English. (I wouldn't know about any translations)
Raw Voltage is just that. Raw without CJC compensation. In defense of the unclear sentence, the Units returned are not Temperature Units (K, °C, °F) so no CJC compensation is declared.