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I noticed there seem to be no way to guarantee the state of an output module controlled by a scan engine in case the RT Application (or the Host Application, depending who is controlling the chassis) crashs. With FPGA one can program some kind of watchdog setting back the output values of a module in case the RT Exe fails. With Scan there just seem to be no possibility.
This is why I think adding a FailSafe Value for a Scan I/O node could be a creat idea. in ase the RT application got aborted or stops without cleanup, the output value would not be random no more but set back to their FailSafe value. I imagine it could look like that:
What do you think about it?
______________ Florian Abry Application Engineer Group Leader, NI Germany