With a trace, you can follow the value progression of variables on the control, similar to a digital scanning oscilloscope.

At runtime of an application with trace, all instructions are first executed within the task cycle.
Then the data acquisition starts and the values are saved with a time stamp.

The time stamp is relative and refers to the start time of the data acquisition.

The data results in a discrete-time signal, the course of which CODESYS displays in the trace editor.

For more Information on the Trace Visu Element, see our OnlineHelp on Displaying Data Graphs with Trace.

Q: Can a trace recording history be reset?

A: No, the trace cannot be reset.

It is designed to continues to run.
You can start and stop the trace, but there is no reset.




See also: Visu: Deleting a trend recording history

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