Siemens SIMATIC S7-1200 System Manual page 1381

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S7-1200 Programmable controller

System Manual, V4.2, 09/2016, A5E02486680-AK

CPU 1211C DC/DC/DC (6ES7211-1AE40-0XB0)

Connector pin locations for CPU 1211C DC/DC/DC (6ES7211-1AE40-0XB0)

L+ / 24 V DC

Functional Earth

L+ / 24 V DC Sensor

M / 24 V DC Sensor Out --

No connection

Note 1: X11 connectors must

be gold. See Appendix C,

Spare Parts for article num-

Note 2: See Device Configu-

ration (Page 153) for infor-

mation about the Ethernet

port of the CPU.

Technical specifications

A.4 CPU 1211C

24 V DC Sensor Power

For additional noise

immunity, connect "M" to

chassis ground even if

not using sensor supply.

For sinking inputs, con-

nect "-" to "M" (shown).

For sourcing inputs,

connect "+" to "M".

No connection