We use the PV_lkaddr() function from the SYS_Lib library. In our function blocks, we have an initialization section that is executed only once. However, the function block itself is not called in PROGRAM _INIT, but only in the cyclic part of the program. The problem is that calling this function s…

A cycle time violation happens when the tasks in a cyclic task class overrun the cycle time plus tolerance. This function may be the cause, but it may also be the case that the function is taking a reasonable amount of time but doesn’t have enough time left to complete once it starts. In other words…

Hello, This function PV_lkaddr() is quering through a database, i don’t know the exact technical details, but I would assume that this will take some time. In which cycletime does the Task run in which the issue does occure? I could immagine that the time needed by the function is also depending …

Duration is 12ms an tolerance is 0: [image]

PV_lkaddr() – Maximum cycle time violation

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simon.buschor (Simon B) March 12, 2026, 8:31am 3

Duration is 12ms an tolerance is 0:

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PV_lkaddr() – Maximum cycle time violation

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