Description of the function
The MASKEVT function performs global masking
of events (1).
Events are stored in the PLC's memory, but any
associated event processing tasks remain inactive, as long as the
masking operation is valid, until the next UNMASKEVT instruction.
NOTE: It is recommended to use this
instruction only for short masking sequence, in the same task cycle.
In other cases,
%S38 should be used. Events are automatically
unmasked by the system on change of mode (stop -> run, ...). It is
not recommended to execute masking sequences when event timers are
active, because they will be reset to 0.The additional parameters EN and ENO can be configured.
(1) except for interruptions generated by FIPWAY telegrams.
FBD representation
Representation:
LD representation
Representation:
IL representation
Representation:
MASKEVTST representation
Representation:
MASKEVT();