553BTechnical specifications
A.3 CPU 1212C
S7-1200 Programmable controller
674
System Manual, 11/2011, A5E02486680-05
Table A- 28 Communication
Technical data
Description
Number of ports
1
Type
Ethernet
HMI device
1
3
Programming device (PG)
1
Connections
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
Data rates
10/100 Mb/s
Isolation (external signal to PLC logic)
Transformer isolated, 1500 VDC
Cable type
CAT5e shielded
1
The CPU provides dedicated HMI connections to support up to 3 HMI devices. (You can have up to 2 SIMATIC Comfort
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- 29 Power supply
Technical data
CPU 1212C
AC/DC/Relay
CPU 1212C
DC/DC/Relay
CPU 1212C
DC/DC/DC
Voltage range
85 to 264 VAC
20.4 to 28.8 VDC
20.4 to 28.8 VDC
Line frequency
47 to 63 Hz
--
--
CPU only
80 mA at 120 VAC
40 mA at 240 VAC
400 mA at 24 VDC
400 mA at 24 VDC
Input current
(max. load)
CPU with all expansion
accessories
240 mA at 120 VAC
120 mA at 240 VAC
1200 mA at 24 VDC
1200 mA at 24 VDC
Inrush current (max.)
20 A at 264 VAC
12 A at 28.8 VDC
12 A at 28.8 VDC
Isolation (input power to logic)
1500 VAC
Not isolated
Not isolated
Ground leakage, AC line to functional earth 0.5 mA max.
--
--
Hold up time (loss of power)
20 ms at 120 VAC
80 ms at 240 VAC
10 ms at 24 VDC
10 ms at 24 VDC
Internal fuse, not user replaceable
3 A, 250 V, slow blow
3 A, 250 V, slow blow
3 A, 250 V, slow blow
Table A- 30 Sensor power
Technical data
CPU 1212C
AC/DC/Relay
CPU 1212C
DC/DC/Relay
CPU 1212C
DC/DC/DC
Voltage range
20.4 to 28.8 VDC
L+ minus 4 VDC min.
L+ minus 4 VDC min.
Output current rating (max.)
300 mA (short circuit
protected)
300 mA (short circuit
protected)
300 mA (short circuit
protected)