Issue
Do you have a simple example of a time-stamping function?

Product Line
EcoStruxure Control Expert (former Unity Pro)

Environment
Unity Pro v12.0

Resolution
There are often times when you are testing or reproducing a problem that you have to time-stamp an event; for example a communications error that you are trying to capture on a Wireshark trace.  Attached is a simple Structured Text example of a DFB that can be used for that. It is demonstrated in a short application that stamps when a hot-standby system swaps but it can be used for many events.

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