Siemens Simatic S7-300 - Page 157

03/2013 3 Setting up functions
3.4 Fault services
© Siemens AG 2006-2013 All Rights Reserved
SINUMERIK Integrate AMB, AMC, AMM, Function Manual (FH) - 03/2013
3-157
Function Description Type
Tripp trigger if
it a variable
monitor
• Reaches or exceeds the critical limit
• Reaches or exceeds the warning limit or the
critical limit
• Reaches the warning limit, but not the critical
limit
Any number of variables can be integrated into
the trigger.
SELECTION
Trigger on
flank
Trigger on
level
Evaluate trigger:
If "flank" 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 captured when the initiating function is
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.
Notice
If several limit values are monitored in one monitor, triggering is not possible for
each individual limit violation. In this case, only the first limit violation results in a
trigger.