Developing HW test for PXI-6527

[Ed11bay]

Hi All,

Fairly new in the LabView world so bear with me here. I have a bunch of 6527 cards laying around in the lab with bad channels in them.

That said, I'm trying to come up with a way to test every relay in those channels. I'm not sure if Self test in the NI front panel will help with that.

Any feedback or ideas will be appreciated. Thanks

[santo_13]

Self-test will not test the front-end circuits, so you will not know if any front-end circuits are damaged.

You can create a test setup with a bunch of loopback cables with a power supply to connect outputs with inputs, this way you can test both outputs and inputs. If you can afford more, you can manually test one of those cards and then use it to drive and receive signals from another test card.

[Ed11bay]

Thanks for your reply.

I like the idea of using a good 6527 card to test the others but then again I'd like to keep it simple.

That said, is there an example of a LabView vi to do this. I only need something to use as baseline.

Thanks

[santo_13]

You can pick any of the DAQmx DI and DO examples and modify them to suit your needs. The concept is to generate a 1 and 0 on DO and see if you detect them properly on the DI of your card under test and similarly generate 1 and 0 from the card under test and see if you can read that back using your known good card.

[Ed11bay]

I checked LabView but no luck. I'll look around. You've given me the idea now. Thanks again