Siemens CP 1243-8 IRC Operating Instructions Manual page 79

Sequence of the analog value preprocessing options
The values of analog inputs configured as an event are processed on the CPU according to
the following scheme:
Figure 4-12 Sequence of the analog value preprocessing
CP 1243-8 IRC
Operating Instructions, 06/2015, C79000-G8976-C385-01
Configuration and operation
4.7 Configuration in STEP 7 Basic
79