How do I configured the PXI-4351 to read thermocouples with Labwindows?

[latinageek]

Hi,
I have a PXI-4351 datalogger and am trying to configured it to read thermocouples, the terms on the functions don't make any sense since it asks for a transducer group...thermocouples are not transducers. Anyone has a software reference for this...the online help is not enough, i guess i need information on how to read a thermocouple. HELP!!!

[Sastry V.]

Hi,

My question is, why do you think Thermocouples are not transducers? In the application with NI 435x, thermocouples are considered transducers just like thermistors, etc.

1. You may want to take a look at examples here:

C:\VXIpnp\WinNT\NI435x\examples\CVI

If you are talking about the NI435x_Configure function, you can find the elaborate help on the function by going to Start>>Programs>>National Instruments 453x>>NI435x Help.


Please do let me know if you need more help.

Sincerely,
Sastry Vadlamani
Applications Engineer
National Instruments

[latinageek]

hi,
thank you. thermocouples are self generating pwr, transducers are not? I believe i am doing better at setting up my functions. I want to setup the datalogger and then go and read in a timer every so often, say 30 secs. Is the NI435X_Acquisition_StartStop()can be called once and then i can go and use NI435X_Read() to read one sample every 30 secs? The function does not explain what "continuos" means. All i want to do is like a dmm behavior where i setup the dmm and then i just go and read a point And with the pc controlling when the read. Any suggestions?