User Manual

Calendars and schedulers
Alarm messages
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Day of the week Meaning
January/2/Monday Monday in the second week of January
*/1/Tuesday Every first Tuesday of a month
February/*/Wednesday Every Wednesday in February
10.4 Alarm messages
The scheduler object cannot directly generate alarms when, e.g., a commanded
object cannot be found.
The alarm function (extended, basic or simple) which defines the alarm
behavior of the object in the system, and the alarm class do not exist because
of standard compliance.
The fault alarming of the schedule object must therefore be implemented as an
additional binary value function block. That's why the function block is linked
with the Dstb (Disturbed) pin of the scheduler and parameterized accordingly.
The additional binary value function block is optional and only required, when a
fault alarming of the scheduler is wanted, e.g., for scheduling external objects.