PG2000 x instruction

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1

Dear experts,

I am looking at some code of an old B&R PLC. The instruction x is used which i cannot relate. Does somebody know what the instruction does?

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Thanks

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Please find the PG2000 programming manual here:

MASYS2PG_E.pdf (4,0 MB)

I have not yet found the “X” to be honest and I do not know what this stands for

3

I found this manual, but indeed X is not described.

4

I have spoken to an older collegue who was working with PG2000 but also this collegue does not remember what the x stands for

5

Hmm, that a pity. Thank you for asking. I think its a sort of set reset memory bit. That as long as its not triggered the output stays active. I found a second rung where the instruction is used. The output F102 is set with a firstscan and when input 010 gets a positive edge. The output switches the lightning. Would be weared if the light is only 1 cycle high. So it must be a sort of set reset function.

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6

I have marked your findings as a solution. Since it is an old system, if you figure out any details, please update us here so it can help others. Thanks a lot.