Siemens S7-400 - Inserting an Interface Submodule in an Expansion Module

Assembling the M7-400
8-14
S7-400 and M7-400 Programmable Controllers Hardware and Installation
A5E00069481-04
EXM 478
Frame of card slot with
mounting hole
Guides
Figure 8-3 Inserting an Interface Submodule in an Expansion Module
Covering Unused Submodule Slots
On delivery, only the upper submodule slot is open in the central and expansion
racks. All other card slots are covered. The cover is secured to the frame of the
card slot with screws.
Loosen the screws and remove the cover to insert more than one interface
submodule in an expansion module.