Siemens SIMATIC S7-200 - Connector Terminal Identification for EM 221 Digital Input 8 X 24 VDC

S7-200 Specifications
A-27
S7-200 Programmable Controller System Manual
A5E00066097-02
+
Note:
1. Actual component values may vary.
2. Either polarity accepted.
3. Optional ground.
1M .0 .1 .2 .3
+
2M .4 .5 .6 .7
24 VDC common and
24 VDC Input
Terminals
24 VDC common and
24 VDC Input
Terminals
1K Ω
5.6K Ω
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Figure A-10 Connector Terminal Identification for EM 221 Digital Input 8 x 24 VDC