Siemens SIMATIC ET 200AL System Manual page 85

Configuring - MultiFieldbus maximum configuration
Each of the connections for ET-Connection occupies a slot in the configuration. The slots for
ET-Connection1 and ET-Connection2 are pre-defined statically in the GSD file.
ET-Connection1 is always at slot 1 and ET‑Connection2 at 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 9-1 MultiFieldbus maximum configuration
Distributed I/O system
System Manual, 12/2023, A5E31861578-AL
Configuring
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