Siemens SIMATIC S7 System Manual page 683

Table A- 44 Communication
Technical data
Number of ports
Type
HMI device
1
Programming device (PG)
Connections
Data rates
Isolation (external signal to PLC logic)
Cable type
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.
Table A- 45 Power supply
Technical data
Voltage range
Line frequency
Input current CPU only
(max. load)
CPU with all expansion
accessories
Inrush current (max.)
Isolation (input power to logic)
Ground leakage, AC line to functional
earth
Hold up time (loss of power)
Internal fuse, not user replaceable
Table A- 46 Sensor power
Technical data
Voltage range
Output current rating (max.)
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
Description
1
Ethernet
3
1
8 for Open User Communication (active or passive): TSEND_C,

TRCV_C, TCON, TDISCON, TSEND, and TRCV
3 for server GET/PUT (CPU-to-CPU) S7 communication

8 for client GET/PUT (CPU-to-CPU) S7 communication

10/100 Mb/s
Transformer isolated, 1500 VDC
CAT5e shielded
CPU 1214C
AC/DC/Relay
85 to 264 VAC
47 to 63 Hz
100 mA at 120 VAC
50 mA at 240 VAC
300 mA at 120 VAC
150 mA at 240 VAC
20 A at 264 VAC
1500 VAC
0.5 mA max.
20 ms at 120 VAC
80 ms at 240 VAC
3 A, 250 V, slow blow
CPU 1214C
AC/DC/Relay
20.4 to 28.8 VDC
400 mA (short circuit protected)
553BTechnical specifications
CPU 1214C CPU 1214C
DC/DC/Relay DC/DC/DC
20.4 to 28.8 VDC
--
500 mA at 24 VDC
1500 mA at 24 VDC
12 A at 28.8 VDC
Not isolated
-
10 ms at 24 VDC
CPU 1214C CPU 1214C
DC/DC/Relay DC/DC/DC
L+ minus 4 VDC min.
A.4 CPU 1214C
683