Siemens SIMATIC ET 200AL System Manual page 47

Configuring
Configuration - PROFINET maximum configuration
Each of the connections for ET-Connection occupies a slot in the configuration. The slots for
ET-Connection1 and ET-Connection2 are specified statically in the PROFINET GSD file. ET-
Connection1 is permanently on slot 1 and ET-Connection2 on slot 18.
The fixed slot assignment of ET-Connection1 and ET-Connection2 offers you the following
advantages:
● You can expand ET-Connection1 and ET-Connection2 without a high workload
● Transparency in configuration control
● Simplification of diagnostics alarms and troubleshooting
The figure below shows the maximum configuration with modules of the ET 200AL
distributed I/O system.
Figure 6-1
Reference
You can find additional information on this topic in section Configuration control (option
handling) (Page 48).
46
PROFINET maximum configuration
Distributed I/O system
System Manual, 08/2019, A5E31861578-AG