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Siemens SIMATIC S7 - Wiring Diagrams; A.2.1.3 Wiring Diagrams

Siemens SIMATIC S7
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Technical specifications
A.2 S7-200 SMART CPUs
S7-200 SMART
692 System Manual, V2.3, 07/2017, A5E03822230-AF
A.2.1.3
Wiring diagrams
Table A- 17 Wiring diagram for the CPU ST20 DC/DC/DC (6ES7288-1ST20-0AA0)
CPU ST20 DC/DC/DC (6ES7288-1ST20-0AA0)
24 V DC Sensor Power
Out
Table A- 18 Connector pin locations for CPU ST20 DC/DC/DC (6ES7288-1ST20-0AA0)
Pin
X10
X11
X12
1
1M
DI a.7
2L+
2
DI a.0
DI b.0
2M
3
DI a.1
DI b.1
DQ a.0
4
DI a.2
DI b.2
DQ a.1
5
DI a.3
DI b.3
DQ a.2
6
DI a.4
L+ / 24 V DC
DQ a.3
7
DI a.5
M / 24 V DC
DQ a.4
8
DI a.6
Functional Earth
DQ a.5
9
--
--
DQ a.6
10 -- -- DQ a.7
11
--
--
L+ / 24 V DC
12
--
--
M/ 24 V DC

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