Interface between CB-68LP AND 4341

[mehul3270]

I want to acquire data of  thermocouple.On which pin of CB-68 LP card should i connect thermocouple?

I have CB-68LP,4351CARDS AND PXI-8170 system.

How to interface between Cb-68lp and 4341 card using labview? Finally how to acquire data of thermocouple using labview VI

[Neil_S.]

Thank you for posting to the NI Forums.  There are two available LabVIEW APIs that can be used to control the PXI-4351.  You can either use the Traditional NI-DAQ (Legacy) driver or the NI-435x driver.  LabVIEW examples are included with both drivers and are a good place to start.  You can find the examples by selecting Help >> Find Examples.  When the NI Example Finder opens select the Browse tab.  For Traditional DAQ examples navigate to Hardware Input and Output >> Traditional DAQ.  For 435x examples navigate to Hardware Input and Output >> Modular Instruments >> 435x. 

Typically we recommend using the TC-2190, TBX-68T or the CB-68T to use with the PXI-4351.  However all the pins of the 4351 will also be available with the CB-68LP.  The pinout is located in the Appendix of the User Manual for the 435x.  The chart describes the pinout of the TBX-68 but should be equivelent for the CB-68LP.  The manual is located at:

https://www.ni.com/docs/en-US/bundle/370841b/resource/370841b.pdf

The manual is also an excellent resource for configuring, installing, and using the PXI-4351. 

and Where to Start with the 4351/4350 located at:

https://www.ni.com/docs/en-US/bundle/321562d/resource/321562d.pdf

Hopefully these resouces will be helpful in getting started using the PXI-4351 to measure thermocouples.  Let me know if you have any additional questions about getting started with the PXI-4351.  Good luck with your application.

Regards,

Neil S.
Applications Engineer
National Instruments

[mehul3270]

Message Edited by mehul3270 on 12-27-2006 03:28 AM

[mehul3270]

Thanks Neil for that

Which  are the latest cards giving faster and better response for the thermocouple interface?

Which cards to be used for the freq. input ?

Message Edited by mehul3270 on 12-27-2006 03:31 AM

[Ed W]

Hi,

In terms of functionality and resolution, the 4351 is an excellent device for thermocouple measurements.  We do have some other thermocouple modules such as the USB-9211/A as well as several modules from the SCXI product line.  The 9211A has a resolution equal to the 4351, plus the Plug-and-Play USB feature adds to its portability. 

There are links to these below.

NI SCXI-1112

NI USB-9211

There are several other modules for the SCXI product line. 

I hope this helps.  Post back with further questions.

Ed W.

Applications Engineer

National Instruments

Message Edited by Ed W on 12-28-2006 01:39 PM