Cyclic Server Trigger For Variable Monitors - Siemens SINUMERIK Series Function Manual

3 Setting up functions
3.4 Fault services

3.4.14 Cyclic server trigger for variable monitors

Function description
These server triggers are initiated based on reached/exceeded limits or rea-
ched/exceeded intervals, which can be configured for variables if these are cycli-
cally read from the control and have been defined as ePS Network Services coun-
ter. (Endless counters in ePS Network Services cannot be reset, even if the vari-
able has been reset.)
Cyclic trigger on variables
A cyclic trigger on a variable requires a variable defined as counter. These are pro-
cessed as "endless counters" (without zero crossing) so that the intervals are al-
ways consistent. When a configured interval value is reached or exceeded, the
trigger is initiated.
Notice
Cyclic triggers for NC variable data can only be created as a template if an axis
configuration is available.
Since the endless counter function of the NC cannot be guaranteed when com-
ponents are exchanged, when a smaller new value is read, ePS Network Ser-
vices calculates this as an offset to the old value.
Fig. 3-41: Selection: NC variable counter
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ePS Network Services, Function Manual (FH) - 03/2012
03/2012