Threshold Value Trigger - Siemens CP 1243-7 LTE Operating Instructions Manual

Transmission mode
The transmission mode of a frame is set in the "Trigger" tab of the data point. With the
option, you specify whether messages of events are sent immediately or following a delay:
● Immediate transfer - Spontaneous
The value is transferred immediately.
● Buffered transfer - Conditionally spontaneous
The value is transferred only when one of the following conditions is fulfilled:
– The communications partner queries the station.
– The value of another event with the transmission mode "Spontaneous" is transferred.
4.12.9

Threshold value trigger

Note
Threshold value trigger: Calculation only after "Analog value preprocessing"
Note that the analog value preprocessing is performed before the check for a configured
threshold value and before calculating the threshold value.
This affects the value that is configured for the threshold value trigger.
Note
No Threshold value trigger if Mean value generation is configured
If mean value generation is configured, no threshold value trigger can be configured for the
analog value event involved.
For the time sequence of the analog value preprocessing refer to the section Analog value
preprocessing (Page 93).
Threshold value trigger
Function
If the process value deviates by the amount of the threshold value, the process value is
saved.
CP 1243-7 LTE
Operating Instructions, 04/2017, C79000-G8976-C381-03
Configuration
4.12 Data point configuration
91