PCI-6229 analog in/out problem after installation

[A_squared]

I recently installed a PCI-6229 M-series DAQ card. I setup some digital I/O first and it worked fine, but had trouble setting up the analog I/O. I have no accessory board for the card and I am using a Molex VHDCI connector to connect to the device. To avoid any Labview issues, I've only been using the Measurement and Automation Explorer. I setup an analog out on ao0 and an analog in on ai0. The ai0 always reads 10.6 V on the -10 to 10 V scale no matter how it is connected or configured. I wired ai0 (pin 68) to ai_gnd (pin 67) and set the terminal configuration to RSE. I tried many other configurations, but for simplicity I'll just mention this one. I tried it on both VHDCI connectors to make sure the card wasn't mislabelled. No luck. I wired ao0 (pin 22) and ao_gnd (pin 55) to both a digital voltmeter (and later an osilloscope) to measure the voltage. No matter what the desired output, the output read 0.935 V. Since the digital I/O went fine, I know I have the pinout correct. The wires have continuity, and the device self-test is fine. I continued to test other channels, and differential configuration with ai0 wired to ai8 with no luck. Always 10.6 VDC on every input and ~0.9 VDC on every output. Does somebody see if I'm missing something, or am I working with some board that is broken in a very quirky way? Does the self-test loopback on itself to verify the AI's and AO's are working properly?

Summary:
1. I'm almost positive I have the correct pinout.
2. I'm almost positive I have the correct terminal configuration (although I tested every one for every setup I tested).
3. My wire aren't broken and are reliably connected to the DAQ card.
4. My NI-DAQmx version is 7.4 and seems to be functioning properly.
4. I tested connector 0 and connector 1.

Thanks for the advise.

Aaron

[e-Cash-Money]

Hello A squared,

It sounds like you have done a very thorough job troubleshooting the problem. It is possible that you have a board that needs to go through an RMA. I would reccomend that you get in touch with an Applications Engineer over the phone by calling 1.866.275.6964. They can help you further troubleshoot the board and if necessary, begin the RMA process for you.

Take care,
E.Lee

[NicholasWittebol]

I know you posted this ages ago, but has anyone found a solution? I ask because I am now having the same problem.

Thanks,
Nicholas

[MickeyD]

Hey Nicholas,

If you did all the testing A Squared described, then there is a likelihood that your board is broken in some way.  The best way to test your board out is to use the online DAQ diagnostic utility. 

DAQ Diagnostic Utility

If you are using a version of DAQmx be sure to use Version 1.0 of the Diagnostic Utility.  Please let me know what that Diagnostic utility returns and then we can further troubleshoot your board.

Have a Fabulous Friday

Michael
Applications Engineering
National Instruments

Message Edited by MickeyD on 11-17-2006 02:15 PM

[FrankMyAliasDoesExist]

Hi everyone, I have the same board, and I experience exactly the same problem.

The Diagnostic Utility can't find anything wrong. Is there a solution yet?

thank you, Frank

[A_squared]

I don't remember too much, but my board was broken and had to be RMA'ed.  The DAQ Diagnostic Utility did not exist at the time when I first posted that I am aware of, so I cannot offer any advise on that.  My board was only a few days old, and NI promptly replaced the board free of charge for me.  The replacement board worked fine and I still use it every day.

Aaron

[FrankMyAliasDoesExist]

Thank you for you quick reply. My board is also new, today I'm using it for the first time. I have used a similar board before, so I know how it should respond.

The Diagnostics Utility says my card is working perfectly btw 🙂

[chakko]

Hello Frank,

Have you solved this problem? I am currently having the same problem with my PCI 6221 and can not solve it. I always get -10.6V or +10.6 as analog input voltage whatever the input is. I need your feedback on this. Could you please tell me what you have done to solve the problem?

Thanks.

[chakko]

Hello Frank,

Have you solved this problem? I am currently having the same problem with my PCI 6221 and can not solve it. I always get -10.6V or +10.6 as analog input voltage whatever the input is. I need your feedback on this. Could you please tell me what you have done to solve the problem?

Thanks.

[FrankMyAliasDoesExist]

Hello,

I solved it eventually, but I don't know how anymore..

One problem I had in the beginning was using the wrong input configuration for my setup (RSE instead of differential), but I don't know if that solved this problem.

best luck! Frank