Siemens SIMATIC ET 200AL System Manual page 61

Configuration control (option handling)
7.3 Creating the control data record
Station option with associated control data record
The configuration with the station options 2 and 4 differ from the station master as follows:
● The modules for options 1 and 3 do not exist.
Figure 7-6
60
Example: Hardware configuration of Station option 2 and 4 with the associated control
data record in STEP 7
Distributed I/O system
System Manual, 08/2019, A5E31861578-AG