Hp4155 delay/response

Hello, I wrote a program labview automated control over devices in our laboratory. Recently, we had a problem where the scanning time for the HP 4155 times changed by 5 seconds, without apparent reason. This made the program unusable and I was forced to change timelines hardcoded to make the program works again. Everyone knows this problem where the equipment apparently suddenly takes more time to do a scan he did 4 + months? Also is it possible to wait a response from the HP4155 to complete the scan instead of hard code in the program times? If someone knows a way to wait for the HP4155 complete analysis, it would be greatly appreciated.

Thank you

Konrad

The-420 error is thrown when a command is sent to read the data, but there is no data to read.

I suspect that happens, it is the call to read from the device that happens before the camera has a chance to put that bit of status you are trying to read. Try to set a breakpoint and wait a few seconds before continuing through this reading VI.

Tags: NI Hardware

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