I developed a batch sequence in TestStand 2014 that runs with 16 sockets over 20 hours. The steps are written in LabVIEW 2015 and utilize the Run-Time engine. I am using the standard BatchModel.seq with PreBatch and PostBatch callbacks. I have delivered the test system to the customer after a successful verification. The customer has notified me that in 2 out of 6 runs, a single socket has had a -17502; System Level Exception Run-Time Error. Both error occurrences were on different sockets and at different times in the sequence, but happened when calling the same VI. The VI runs a simple loop to parse a particular measurement out of an array. The input array has either 5 or 6 elements being passed in depending on where in the sequence it is being called. The input array is saved in a previous step to a local variable. The VI is set to "Preallocated clone reentrant execution" to allow all 16 sites to access the VI at the same time. I have looked through a lot of other posts regarding this error, but none of them seem to apply (no CVI, no DLLs, no ActiveX...). I don't have the ability to login to the system or to check out the error as it is happening. I also can't get the error to recur on a similar system that I do have access to. Is the error generated by the VI, or is it generated by TestStand? I am looking for possible causes and potential solutions. Any ideas would be appreciated.
I have included the VI that is associated with the error, as well as a screenshot of the VI during a TestStand run and the test sequence.
