Is there some type of state chart or flow chart which describes the process model order of execution?

[srogers]

One of my customers asked me this question...

I'm have an issue with a change in the execution order in TestStand 4.1.1.  [he has upgraded from 3.1 to 4.1.1]  It looks like ProcessModelPreStep runs earlier in 4.1.1 than it does in 3.1.  This causes our model to error out because some required variables haven't been defined when it runs.  I wish there was a big flow chart or state diagram for TestStand.  Maybe there is and I don't know where to look?

[PhillipBrooks]

Starting with TS 4.1, there is a flow diagram that can be displayed for a selected sequence...

Select "View -> Sequence File -> Display File Hierarchy"

[AllenP · Accepted solution]

The Callback you describe is an Engine callback and is independent of the process model.  There is a list of every action and their order described in the TestStand Reference Manual in Chapter 3 in the section titled "Step Execution".  You will see Action 11 is the Pre-Step Engine callback.

Allen P.

NI