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CR1000 WatchDog

hkleta Feb 9, 2009 07:58 PM

Hi,

I have a CR1000 with a few analogue and some serial sensors sitting around in the lab and doing mostly its job.

But sometimes, without an obvious reason the CR1000 stops working. After 10-15 seconds it is running again, with the WatchdogErrors counter incremented.
No other Counters get incremented.

How gets that Watchdog triggered?
Hardware or Software?
What type of Hardware error could that be?
Or could there be a problem with my programming?

Where could I start to look?

I have tested several powersupplys, including one battery.
There are now Groud-Loops, and everything is grounded well.
No equipment around that could disturb the system with ESD.


Thanks for any hint in advance,

Henry

Dana Feb 10, 2009 05:47 PM

Hello Henry,

Watchdog errors occur for all the the reasons you list (programming problem, grounding problem, hardware problem, etc).

First, make sure you are running the most recent operating system (it can be downloaded from our web site). If the errors continue, you can attempt to see if it is program related by commenting out one or more instructions and seeing if the problem still occurs.

Other things to try:

Disconnect one or more sensors to see if the problem is there.

Run the same program on a different CR1000 (if you have one) to ensure it is not datalogger specific.

If you cannot isolate the problem, contact someone here at CSI. We could load the program and see if it causes problems here.

Regards,

Dana

hkleta Feb 11, 2009 07:22 AM

Hi,

thanks so far.


The problem is not datalogger specific.
I had a demo CR1000 from your colleagues here in Germany, and I had the same problems there.

The OS has been updated less than three weeks ago.

I suspect that the serials (com1 - com4) are causing the problem.
I need them all, and two of them receive once a second exactly the same data.
Could that be a problem?
Are those serials 100% independent and able to run absolutely independently?

Thanks for any hint in advance,

Henry

Dana Feb 11, 2009 04:37 PM

Hi Henry,
If you have seen the problem in other dataloggers, we'll make much more progress if you will email your program to CSI so we can take a look at it.
Regards,
Dana

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