+10800 tiimout error acquiring analogue signal from PXI6025e

[Dave Ranner]

Hi Guys,

I have a problem with the following configuration: -
Windows 2000 PC, running Measurement Studio (6) for MS VB 6
Linked to PXI-1000B chassis vis MXI3
PXI-6025E DAQ, acquiring 4 x 4-20mA inputs via SC-2345 signal conditioner

The system has been up-and-running fine for a few months. However, in the last couple of days, attempts to read from the DAQ have suddenly started failing with the message 'Error 10800, Operation Could Not Complete Within The Time Limit'.

The code in question fails on the first iteration, and is in the following form: -

Dim vntData As Variant
If cwAI.SingleRead(vntData) = 0 Then
....

Other cards in the rack appear to work fine.

Thanks in advance for any help!

Cheers,
Dave

[RobSims]

Hi Dave,

Thanks for the post.

I've got a long list of probable causes for you, but to help narrow it down a bit I have a small number of simple diagnosis questions:


- Firstly, have you tried using MAX (Measurement & Automation Explorer) to detect the problem. If it still occurs this would then imply the issue is with the hardware as opposed to the software code you have written...

- Which NI drivers are you using, traditional NI-DAQ or DAQmx? Also, which driver versions?

- Also, have you checked for more recent versions of the MXI-3 Optimization software?

http://digital.ni.com/softlib.nsf/websearch/3240BCBDFBFF00ED86256B5A006DD07B?opendocument&node=132060_US

If you could check for those details that should help us reduce the list of possibles.


Also, as a quick afterthought, there is a known issue with some of the PXI chassis power supplies - if you power down the PXI and quickly reboot it, some components on the DAQ board might not discharge or turn off completely- this is known to return 10800 timeout errors. To check against this, power-down the PXI for at least one minute to allow the components to discharge, then re-boot.

Let me know how you get on.

Rob

[Dave Ranner]

Hi Rob,

Thanks for the response.

Things have moved on a little bit since my first post...

We tried using MAX, and couldn't get any sort of response from the card - it reported an inccorect base address.

The system is on a client's site that I don't have easy access to. However, under the guidance of someone at NI, he has installed the latest drivers, MAX software, etc, to no avail. The card itself has now been tested by NI, and apparently works (although the engineer did report that the Analogue Channels did not seem to behave themselves initially - not sure if this is coincidence or not). We are now waiting on the return of the card.

I am at a bit of a loss at what to try next. Could a failure in the signal conditioner manifest itself in this fashion? Or would such a failure simply result in strange readings. Also, is there any likelyhood of a slot-failure in the rack? Is there any way in which our software could have got the card into some sort of strange state?

Any more direction you could give me would be much appreciated.

Cheers,
Dave

[Dave Ranner]

Sorry, further to the above...

* The system is using the traditional NI-DAQ drivers.

* We tried powering everything off for well over a minute, unfortunately to no effect.

Cheers,
Dave

[RobSims]

Hi Dave,

To bug check for any kind of possible slot failure, perhaps try inserting the card into a different slot on the chassis.

When you recieve the card - to avoid the possibility of getting the card 'into a strange state', do not run your software or attached the signal conditioner, just initialize the MAX test panels and see if you get a response. If that works, then attach the SC, if that succeeds then perhaps try your program.

Let me know how it goes, or if you've already tried this.