Technical data

Programming
CPU 317T: Technology Functions
A5E00251798-03
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5.3 Monitoring busy commands
All technology functions provide status outputs for monitoring current commands.
As long as the input parameter Execute is set to TRUE, the status messages are
retained (does not apply to the technology function MC_Stop). When you set a
short Execute = TRUE signal, the status messages are output only in one
execution cycle (see example 2 in the figure below).
The Busy status bit indicates that the command is being executed, and that the
output parameters of the technology function are being updated.
Commands with defined termination
The technology function provides an output parameter Done to signal the
completion of commands of this type (example 1). Output parameter
CommandAborted is set (example 3) if the execution of such a command is
prematurely aborted. This may be triggered by the start of a further command at
the same technology object, or by an error event.