Installation
3.3 Installation and removal procedures
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
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3.3
Installation and removal procedures
3.3.1
Mounting dimensions for the S7-200 SMART devices
The CPU and expansion modules include mounting holes to facilitate installation on panels.
S7-200 SMART module
Width A (mm)
Width B (mm)
CPU SR20, CPU ST20, and CPU CR20s
90
45
CPU SR30, CPU ST30, and CPU CR30s
110
55
CPU SR40, CPU ST40, and CPU CR40s
125
62.5
CPU SR60, CPU ST60, and CPU CR60s
1
175
37.5
1
Expansion modules:
EM 4AI, EM 8AI, EM 2AQ, EM 4AQ, EM 8DI, EM 16DI, EM
8DQ, and EM 8DQ RLY, EM 16DQ RLY, and EM 16DQ
Transistor
45
22.5
EM 8DI/8DQ and EM 8DI/8DQ RLY
45
22.5
EM 16DI/16DQ and EM 16DI/16DQRLY
70
35
EM 2AI/1AQ and EM 4AI/2AQ
45
22.5
EM 2RTD, EM 4RTD
45
22.5
EM 4TC
45
22.5
EM DP01
70
35
1
The CPU xx60 models have two sets of mounting holes. The width "B" dimension is measured from the center of each
mounting hole to the corresponding edge of the housing.
Note
The compact serial CPUs (CPU SR20s, CPU SR30s, CPU SR40s, and CPU SR60s) do not
support expansion modules or signal boards.