Siemens SIMATIC Manual page 284

Principles of analog modules
5.3 Setting the measuring method and ranges of analog input channels
Proceed likewise with any other measuring range modules.
You can now install the module.
Incorrect settings of the measuring range modules may lead to the destruction of the
module.
Always make sure that the measuring range module is in the correct position before you
connect a sensor to the module.
284
CAUTION
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ