Siemens Simatic S7-400 - Manual (Page 246)

Analog Modules
5-30
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
2. Insert the measuring range module (correctly positioned (1)) into the analog
input module.
The measuring range selected is the one that points to marker point on
module (2).
1
2
Figure 5-2 Inserting the Measuring Range Module into the Analog Input Module
Perform the same steps for all other measuring range modules.
The next step is to install the module.
!
Caution
This can result in damage.
If you have not set the measuring range modules correctly, the module may be
destroyed.
Make sure that the measuring range module is in the correct position before
connecting a sensor to the module.