Siemens SIMATIC ET 200AL System Manual page 67

The following figure shows 3 configurations of a standard machine with the corresponding
station options of the ET 200AL distributed I/O system.
Figure 7-1
Benefits
• Easy project handling and commissioning through use of a single STEP 7 project for all
station options.
• Easy handling during maintenance, versioning and upgrades.
• Hardware savings: Only the I/O modules needed for the current station option of the
machine are installed.
• Potential savings when building, commissioning and creating documentation for standard
machines.
Distributed I/O system
System Manual, 08/2021, A5E31861578-AJ
Various configuration levels of a standard machine with the corresponding station
options of the ET 200AL distributed I/O system.
Configuration control (option handling)
7.1 Configuration control
65