Siemens SINUMERIK 840Di sl - Page 129

12/2008 3 Setting up functions
3.4 Fault services
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ePS Network Services, Function Manual (FH) - Release 12/2008
3-129
trigger an action at every triggering, edge evaluation can be selected. An event will
be generated only at the first trigger after the limit value violation.
Fig. 3-31: Trigger on limit value for variable monitor
Field Content Type
Name Name of the trigger DISPLAY
INPUT
(Max. 40
characters; any
character
permissible)
Initiate trigger if at
least one variable
in the list of variable
monitors ...
The following options are possible:
• Critical limit reached
• Warning limit or critical limit
reached
• Warning limit reached, but not
critical limit
Any number of variables can be
integrated into the trigger.
SELECTION
Edge / level Evaluate trigger:
If "Edge" is selected, the trigger will
only be initiated during the transition
between the previous and current
instance of variable acquisition, while
simultaneously detecting the trigger
initiation function. If "Level" is
selected, the trigger will be initiated
each time the variable content is
recorded, once the initiating function
has been detected.
The initiating function is the limit
value function that has been
selected.
SELECTION
The limit values are permanently configured in the variable monitor. Triggering for
several limit values of a variable is only possible via several variable monitors; this
is also true for each limit violation.