Siemens Simatic M7-400 Reference Manual page 393

Setting the Address Area
The address area of the S5 I/O modules is set on the IM 314. This setting applies
only for the digital and analog I/O modules.
The address areas P, Q, IM3, and IM4 are available. Set the switch to the relevant
position to address the digital and analog I/O modules in these areas.
Table 7-5
I/O Area Address
P area:
Q area:
IM3 area: FC00 - FCFF
IM4 area: FD00 - FDFF
*) Status as shipped
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Settings Address Areas on the IM 314
O = OFF,
F000 - F0FF S1: 0000 *)
F100 - F1FF 0001
1100
1101
Switch Position
1 = ON
not relevant
IM 463-2
OFF
ON
7-9