Siemens Simatic S7-200 System Manual page 355

Wiring Diagrams
24 VDC Input
Used as Sinking Inputs
1M .0 .1 .2
24 VDC Output
1M 1L+ .0
Figure A-2 CPU Inputs and Outputs
CPU 221 DC/DC/DC
(6ES7 211–0AA22–0XB0)
M L+ 0.0 0.1 0.2 0.3
1M 0.0 0.1 0.2 0.3 2M 0.4 0.5
Figure A-3 CPU 221 Wiring Diagrams
24 VDC Input
Used as Sourcing Inputs
1M .0
.3
N(–)
L(+)
.1 .2
24 VDC Power
M L+ DC
M L+
24 VDC Sensor
Power Output
Technical Specifications Appendix A
.1 .2 .3
Relay Output
1L .0 .1 .2
CPU 221 AC/DC/Relay
(6ES7 211–0BA22–0XB0)
N(–) N(–)
L(+) L(+)
1L 0.0 0.1 0.2 2L 0.3
1M 0.0 0.1 0.2 0.3 2M 0.4 0.5
120/240 VAC Power
A
N L1 AC
M L+
24 VDC
Sensor Power
Output
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