Product overview
S7-300 Programmable Controller Hardware and Installation
3-2 A5E00105492-01
Power supply (PS)
CPU
Signal module(SM)
PROFIBUS Bus cable
PG cable
1
2
3
4
5
4
5
1 2 3
SF
BUSF
DC5V
FRCE
RUN
STOP
SIEMENS
1 2 3
SF
BUSF
DC5V
FRCE
RUN
STOP
SIEMENS
Figure 3-1 S7-300 modules
S7-300 PLCs can be installed horizontally or vertically. The following ambient air
temperatures are permissible:
• horizontal installation: from 0 °C to 60 °C
• vertical installation: from 0 °C to 40 °C
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