Does anyone have experience using testand to run a full automated test cell with continous testing. I have a project in which this company bassically built an in circuit tester witha a conveyor and motor drivin clam shell. I have used teststand in the past, but was wondering about ideas on this one. I really dont want to build a custom GUI and sequencer with LabView, I would rather do this with test stand. Any feedback would be appreciated.
What is your main concern? Are you worried about up time?
If you code it right it should run well. I wouldn't store too many results in memory.
Like Jigg said, my only concern would be how many results you are storing in memory.
I've run long production tests back-to-back and seen tests begin to slow down, but that was pre-TS2010 and the tests were managing a lot of data.
I am worried about the up time. Thankfully we arent storing much data.
One of main concerns is integration in with the board handler to automatically start the tests.
There are a couple of ways to design an automated test start. Selection of the 'correct' way is depending on some key features like test time vs. line frequency (DUTs/time), developer knowledge and of course test system environment (e.g. connected databases, hardware, user interaction, ...).
I usually recommend two options:
1) Custom UI which uses IO Server to detect 'start test' situation (e.g. closed cover of tester when manually filled). That could be e.g. a digital trigger event which essentially presses as "Single Pass" test execution programmatically (TS button 'DoClick' method)
2) Customized Pre-UUT sequence which calls blocking into a code module which waits for the start event. This approach however requires more sophisticated planning for debugging/termination use-cases (e.g. using Termination Monitor in blocking call)