Dc System Installation - Siemens SIMATIC S7-200 System Manual

L1
N
PE
Figure 2-12
S7-200 Programmable Controller System Manual
A5E00066097-02
Floating [f] or Grounded [g]
[a]
AC
DC
[e]
[b]
[c]
[d]
24 VDC
L+ M

DC System Installation

Installing an S7-200 PLC
[h]
[g]
[f]
DO PS
DO
S7-200 EM 222
DI
DC/DC/DC DC
M
DI
EM 221
DC
2-15