Siemens SIMATIC FM 353 Manual page 13

Multi-rack configurations
A SIMATIC S7-300 CPU may run up to four racks with as many as eight bus sta-
tions each (see Figure 1-1).
OP
MPI
Operator panel
Backplane Rack 3
bus
24 V
Rack 2
24 V
Rack 1
24 V
Rack 0
PS 24 V
SIMATIC
2/5/10 A
S7-300 CPU
MPI − Multipoint interface
IM − Interface module
SM − Signal module
PS − Power supply
CPU − Central processing unit
Fig. 1-1 Multi-rack configuration of a SIMATIC S7-300 with FM 353 (example)
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
Programming device
IM
SM SM
dig./anal. dig./anal.
IM SM SM
dig./anal. dig./anal.
IM
SM SM
dig./anal. dig./anal.
SM
IM
dig./anal.
PG
SM FM SM
dig./anal. dig./anal.
FM SM
SM
dig./anal.
dig./anal.
stepper drive
SM FM 353 SM
dig./anal.
dig./anal.
SM
SM FM 353
dig./anal.
dig./anal.
24 V
Stepper drive
Product Overview
SM SM
dig./anal.
dig./anal.
SM
SM
dig./anal.
dig./anal.
SM SM
dig./anal.
dig./anal.
Distributed I/Os,
L2-DP with IM interface
module
1-3