PC-based phase events

NEVER use modal dialog boxes or other user interface that causes the program logic to wait at some point. This can prevent the PLI from responding to state changes.

NEVER use looping logic that waits at some point. This can prevent the PLI from responding to state changes. The PLI runs every X millisecond as specified by the

Interval

property. Use

Select Case

or

If Then Else

logic combined with changes to the

StepIndex

property to advance from section to section within your code.

The phase programmer is responsible for transitioning the phase from an active state (RUNNING, STOPPING, and so on) to a finished state (COMPLETE, STOPPED, and so on) using the

TerminateState

method.