Sequences in Asset analysis possible?

User1679551701460800434 over 2 years ago

Hi,

I'm trying to implement a statechart/sequence like this:

If transition1 and state=1 then 2 else if transition2 and state=2 then 1 else NoOutput()

It is triggerd on transition1 and transition2;

Output varaible is 'state' and is historised to the DA

that is accepted by AF but i can't forward 'trigger time' time stamps for output 'state' as I get 'Cannot override output time stamp if any output is used as an input'

Do I miss something obvious or is that not possible? Any good workarounds?

0 avanfosson over 2 years ago

Hi User1679551701460800434,

It would be easier to answer your question if you posted how transition1 and transition2 are calculated.
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0 User1679551701460800434 over 2 years ago

transition1 and transition2 could be anything. You could replace it even with "true". The Question is about how to get the output variable (historized to a PIPoint) as an input variable without losing the 'trigger time' time stamps.
I researched further and it seems that a work around is to create a seperate analysis that writes the current "state" variable to a different PIPoint and use that PIPoint as an input.
I haven't tried it yet, but if it works that i think you could also put the new analysis in a PE of a PIPoint.
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0 avanfosson over 2 years ago

Right, that should work. I was concerned that the output of your example was writing to the points used in calculation the transition variables, which is why that error was thrown. But the same could be true for the state variables.
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