Siemens Simatic S7-200 System Manual page 361

Wiring Diagrams
EM 221 Digital Input 8 x 24 VDC
(6ES7 221–1BF22–0XA0)
1M .0 .1 .2 .3
2M .4 .5 .6 .7
EM 221 Digital Input 8 x AC 120//230 V
(6ES7 221–1EFF22–0XA0)
L1
N
0N 0N .0 1N 1N .1 2N 2N .2
4N .4 5N 5N .5
N
L1
EM 223 24 VDC Digital Combination 4 Inputs/ 4 Outputs
(6ES7 223–1BF22–0CAB0)
1M 1L+ .0 .1
1M .0 .1
Figure A-7 Wiring Diagrams for EM 221, EM 222, and EM 223 Expansion Modules
EM 222 Digital Output 8 x 24 VDC
(6ES7 222–1BF22–0XA0)
1M 1L+ .0
2M 2L+ .4
3N 3N .3
6N 6N .6 7N 7N .7
.2 .3
.2 .3
Technical Specifications Appendix A
EM 222 Digital Output 8 x Relay
(6ES7 222 1HF22–0XA0)
.1 .2 .3
M
.5 .6 .7
24 VDC Coil
power
EM 222 Digital Output 8 x AC 120/230 V
(6ES7 222–1EFF22–0CAB0)
N
L1
0L 0L .0 1L 1L .1
4L .4 5L 5L .5
L1
N
EM 223 24 VDC Digital Combination 4 Inputs/4 Relay Outputs
(6ES7 223–1HF22–0CAB0)
N(–)
L(+)
1L .0
M L+ 1M .0
24 VDC Coil
Power
N(–)
L(+)
1L .0 .1 .2 .3
L+ 2L .4 .5 .6 .7
L
(+)
N
(–)
2L 2L .2 3L 3L .3
6L 6L .6 7L 7L .7
.1 .2 .3
.1 .2 .3
349
A