Sequence In The Module Subassembly; Possible Applications Of The M7-400 Modules - Siemens S7-400 Installation Manual

Table 8-1
Slot n and n + 1 for Double-Width
CPU 486-3, CPU 488-3
Note
Establish whether there are additional regulations applying to all modules not
described in this manual.
Table 8-2 shows which modules can be used in the different racks.
Table 8-2
Central Processing Units (CPUs)
Expansion Module (EXM)
AT Adapter Module (ATM)
Mass Storage Module (MSM)
Can only be inserted in conjunction with the CPU.
*
S7-400 and M7-400 Programmable Controllers Hardware and Installation
A5E00069481-04

Sequence in the Module Subassembly

CPU
CPUs

Possible Applications of the M7-400 Modules

Modules
Assembling the M7-400
Slot Slot
n + 2 n + 3
EXM 478 -
EXM 478 EXM 478
EXM 478 EXM 478
EXM 478 EXM 478
EXM 478 ATM 478
EXM 478 ATM 478
ATM 478 -
ATM 478 ATM 478
ATM 478 ATM 478
MSM 478 -
EXM 478 MSM 478
EXM 478 EXM 478
EXM 478 MSM 478
MSM 478 ATM 478
MSM 478 ATM 478
Racks
UR1, UR2 UR1, UR2
as as
Central Expansion
Rack Rack
F
-
F
*
-
F
*
-
F
*
-
Slot
n + 4
-
-
EXM 478
ATM 478
ATM 478
-
-
-
ATM 478
-
-
MSM 478
ATM 478
ATM 478
-
CR2 ER1, ER2
F
-
F
*
-
F
*
-
F
*
-
8-3