Access to Analog Output with TBX-68T connected to PCI-MIO-16E-4

[darenfs]

Hi all

Can one access to Analog Output with TBX-68T connected to PCI-MIO-16E-4 ?

[darenfs]

Looking through this forum, I was able to map the  PCI-MIO-16E-4 pinouts to the TBX-68 (I could not find reference to TBX-68T). My AI would only deliver +/- 5V despite the fact that I set them to +/- 10V.  I am using Matlab/Simulink. I had to set the GAIN to 0.5 in the Analog Input block to get +/-10V.

Is this the proper way ?

Thanks

Daren

[Brian F.]

Hello Daren.

Thank you for posting to the NI Discussion Forums. 

The TBX-68T is meant to be used with our 435x line of High-Precision Voltage and Temperature Logger Cards.  That said, they will still provide use of some of the pins on the PCI-MIO-16E-4 card that you have.  I was able to figure out the pins by bringing up a mapping of the 435x to the TBX-68T as well as a pinout of the 16E-4 card.  Through comparing the pins, I found that the CH9+ and the CH9- pins on the TBX-68T will give you access to AO0 while CH10+ and CH10- will give you access to the AO1 channel on the 16E-4.  I tested these connections and the voltage that I requested was measured at these terminals.

In terms of measuring analog input signals, I found that hooking up my CH9+ and CH9- terminals (AO0) to CH5+ and CH5- (AI4 and AI12), I was able to read the correct voltage without adjusting a gain setting.  One thing that could be throwing you off are the positions of the switches on the board.  For reference, you should put the S1 and S2 to OFF, the SW1 and SW2 to DIO, and the S3 to PWR 435x.  This should then yield the correct results for you. 

So, it is possible to do what you desire, but the TBX-68T certainly wasn't intended for this use.  I would recommend a different connector block so you can get the full use of all of the pins on your 16E-4 card.

Have a great day and if you have any other questions, please ask!

Brian F
Applications Engineer
National Instruments

[darenfs]

Thank you Brian for the clear info and the time you took to test my Non standard setup.

 Which Breakout board is available for my NI-PCI-6040E ?

With such great support I will consider switching to Labview this summer.

Thanks!

[Brian F.]

Hello Daren. 

The recommended connector blocks for the PCI-6040E can be seen at the product page at:

NI PCI-6040E
https://www.ni.com/en-us/support/model.pci-6040.html

If you select the pricing tab (which should be selected by default) and scroll down the list to 'Step 3: Select Connector Block', you will see all the recommended connector blocks for this card.  The list is fairly large, but they are categorized into BNC Termination and Screw Terminal Connector Blocks.  You will also see that NI recommends using the SCC-68 with the PCI-6040E card.  I would also recommend this unless you require BNC connectors. 

I am very happy you are considering using LabVIEW.  You can actually download an evaluation version of LabVIEW and use it for 30 days at https://www.ni.com/en/support/downloads/software-products/download.labview.html

If you wish to learn more about LabVIEW Basics, we also offer a very helpful tutorial at https://learn.ni.com/learn/article/labview-tutorial

Let us know if you have any questions/concerns about LabVIEW as well as any further questions about the PCI-6040E connector block.  We would be happy to help!

Have a great day!

Brian F
Applications Engineer
National Instruments