problems with analog inputs

[Tomás Mateo]

I have trying to test my Analog Input but it doesn't look fine, however digital ports works well.

I´ve also trying to test the analog input channel called 21230 with the analog output channel generating a sine wave as described at "Internal Analog Input Channels for Self-Diagnostics or the Monitoring of Analog Output Voltage" but it doesn'work.

My configuration is:

DAQ 6025E (777744-01 rev.X19)
NI-DAQ 6.8.1 f6
MAX 2.0.3.17
LabView 5.1

Please, can you help me?
Thanks in advance

[mhaag]

Tomas -

From what you have said it is a little hard to say exactly what might be going on with your system. One basic test that I would recommend trying is to take a plain battery (like a AA battery) and connect it to one of your analog input channels (the positive to an ACHx and the negative to AIGNC). Since the battery is a floating signal source, you will want to set your DAQ device's input mode to RSE (ground references single-ended). Then in MAX you can run a test panel and see if you observe the input.

Another option would be to run the E Series Online diagnostic utility. This is a great tool that will test the functionality of your board and verify if it is working properly or not. However, for you to do this you will first need to upgrade you versi
on of NI-DAQ to at least v6.9. In your case I would recommend downloading NI-DAQ v6.9.3, which can be found on our website: http://ni.com/support.

If you are interested in the online diagnostic, then please check out the following website also:

http://ni.com/support/selftest/

If you have any other questions then please let us know and include a little more information in regards to what, if anything, you are seeing on the channels and how you have your DAQ device configured.

Regards,
Michael H
Applications Engineer
National Instruments