Siemens S7-400 - Inserting Interface Submodules in the CPU

Starting Up
6-19
S7-400 and M7-400 Programmable Controllers Hardware and Installation
A5E00069481-04
5. Slowly push the interface submodule into the slot until the front plate rests on
the frame of the card slot.
6. Important! Secure the front plate with the two fitted, captive M2.5 x 10 slot-head
screws on the left frame of the card slot.
7. Attach the additional front plate for an IF 964-DP and for an IF 960 HF
(synchronization module).
Guide
rails
Figure 6-3 Inserting Interface Submodules in the CPU
Covering Unused Submodule Slots
On delivery, all the submodule slots are secured with a submodule cover. The
cover is attached to the frame of the card slot with screws.
Leave unused submodule slots secured.