Library manual M238 system functions | 2 MB - BERGER - POSITEC

IsFirstMastCycle: Indicates if Cycle is the First MAST Cycle
Function Description
This function returns TRUE during the 1st MAST cycle after a start.
Graphical Representation
M238 System Functions
IL and ST Representation
To see the general representation in IL or ST language, refer to the chapter Function
and Function Block Representation (see page 71).
I/O Variable Description
Example
Output Type Comment
IsFirstMastCycle BOOL TRUE during the first MAST task cycle after
a start.
This example describes the three functions IsFirstMastCycle, IsFirstMast-
ColdCycle and IsFirstMastWarmCycle used together.
This example must be used in MAST task otherwise might be run several time or
never (an additional task might be called several times or not called during 1 MAST
task cycle):
VAR
MyIsFirstMastCycle : BOOL;
MyIsFirstMastWarmCycle : BOOL;
MyIsFirstMastColdCycle : BOOL;
END_VAR
MyIsFirstMastWarmCycle := IsFirstMastWarmCycle();
MyIsFirstMastColdCycle := IsFirstMastColdCycle();
MyIsFirstMastCycle := IsFirstMastCycle();
IF (MyIsFirstMastWarmCycle) THEN
(*This is the first Mast Cycle after a Warm Start: all
variables are set to their initialization values except the
Retains variables*)
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