Siemens SIMATIC ET 200S Operating Instructions Manual page 61

If your ET 200S modules are exposed to shocks or vibrations they can be stabilized by using
the mounting brackets included in the delivery package.
1. Slide the fixing bracket into the slot in the underside of the additional terminal.
2. Screw the fixing bracket firmly onto the base.
①
②
ET 200S
Operating Instructions, 08/2008, A5E00515771-06
The lower part of the mounting bracket can be broken off and used to fill any gap
between the add-on terminal and its base by placement under the bracket (as a spacer).
Figure 4-8 Stabilizing an add-on terminal with fixing bracket
Mounting brackets
Spacer
Installing
4.5 Installing add-on terminals
61