Siemens SIMATIC S7-1200 Manual page 241

Table A- 10 Communication
Technical data
Communication
Data rates

Isolation (external signal

to PLC logic)
Cable type

Devices
Ethernet connections
2
CPU-to-CPU S7 connections
(GET/PUT)
The CPU provides dedicated HMI connections to support up to 3 HMI devices. (You can have up to 2 SIMATIC Comfort
1
panels.) The total number of HMI is affected by the types of HMI panels in your configuration. For example, you could
have up to three SIMATIC Basic panels connected to your CPU, or you could have up to two SIMATIC Comfort panels
with one additional Basic panel.
Open User Communication connections (active or passive): TSEND_C, TRCV_C, TCON, TDISCON, TSEND, and
2
TRCV.
Table A- 11
CPU 1214C AC/DC/Relay
①
②
Easy Book
Manual, 11/2011, A5E02486774-04
CPU 1211C
1 Ethernet port
10/100 Mb/s

Transformer isolated,

1500 VDC
CAT5e shielded

3 HMI
 1
1 PG

8 (active or passive)
8 (client)

3 (server)

Wiring diagram for CPU 1214C AC/DC/Relay
24 VDC Sensor Power Out. For additional noise immunity, connect "M" to chassis ground
even if not using sensor supply.
For sinking inputs, connect "-" to "M" (shown). For sourcing inputs, connect "+" to "M".
CPU 1212C
1 Ethernet port
10/100 Mb/s

Transformer isolated,

1500 VDC
CAT5e shielded

3 HMI
 1
1 PG

8 (active or passive)
8 (client)

3 (server)

Technical specifications
A.2 CPU modules
CPU 1214C
1 Ethernet port
10/100 Mb/s

Transformer isolated,

1500 VDC
CAT5e shielded

3 HMI
 1
1 PG

8 (active or passive)
8 (client)

3 (server)

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