Siemens SIMATIC S7-1500 System Manual page 188

You can flexibly vary the distributed configuration with configuration control. As a
precondition for this, it must be possible to derive the station option from the station master.
The following figure shows three configuration levels of a standard machine with the
corresponding station options of the ET 200SP distributed I/O system.
Figure 10-2
Advantages
● Simple project execution and commissioning by using a STEP 7 project for all station
options.
● Easy handling during maintenance, versioning and upgrades.
● Hardware savings: You only install the I/O modules needed for the current station option
of the machine.
● Potential savings when building, commissioning and creating documentation for standard
machines
SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA
Various configuration levels of a standard machine with the corresponding station
options of the ET 200SP distributed I/O system
Flexible automation concepts
10.2 Configuration control (option handling)
187