Machine Trigger On "New Value Of An Eps Variable - Siemens SINUMERIK Series Function Manual

03/2012
Function
Start
trigger
name
Condition
Trigger
Stop
Stop
trigger
name
Condition
Monitoring
time

3.4.7 Machine trigger on "New value of an ePS variable"

Function description
The stopwatch offers the possibility to monitor actions and functions that could not
take place in the defined time window intended or specified for them. A potential
overshooting or undershooting of the defined time window can be detected at an
early stage.
Using a definable start and stop signal from the PLC, the real time difference is de-
termined and maintained as a variable in a time series. The permissible time range
can be delimited with additional triggers on upper and lower limits and for prewarn-
ing and warning. In addition to simply maintaining a time series via the variable
monitor, the stopwatch trigger can also use it to trigger all other available actions.
The same variable or different variables can be used as a start and stop signal,
with all of the comparison operators that are permissible for PLC variables.
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ePS Network Services, Function Manual (FH) - 03/2012
Description
Displays the name specified in the PLC variable
configuration.
Displays the condition specified in the PLC variable
configuration.
If the logic conditions are fulfilled for stop, monitor-
ing stops. Independently, timeout times are also
compared so that the trigger can be triggered.
The logic operations are created as described for
the PLC variables.
Displays the name specified in the PLC variable
configuration.
Displays the condition specified in the PLC variable
configuration.
The monitoring time is the threshold acting as a
trigger if the time is exceeded for a started process
which is not yet stopped.
For all units, up to 3-digit numerical values can be
specified. With days, the limit is 366.
Available selection:
- Milliseconds
- seconds
- Minutes
- Hours
- Days
- Weeks
3 Setting up functions
3.4 Fault services
Type
DISPLAY
DISPLAY
ACTION
DISPLAY
DISPLAY
DISPLAY
SELECTION
(digits from
1 to 999)
3-135