Siemens SIMATIC S7 System Manual page 290

Technical specifications
A.2 CPUs
Technical Specifications
Model
Data rates
Isolation (external signal to PLC
logic)
Cable type
Power supply
Voltage range
Line frequency
Input current
CPU only at max. load
CPU with all expansion accessories
at max. load
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
Sensor power
Voltage range
Output current rating (max.)
Maximum ripple noise (<10 MHz)
Isolation (CPU logic to sensor power) Not isolated
Digital inputs
Number of inputs
Type
Rated voltage
Continuous permissible voltage
Surge voltage
Logic 1 signal (min.)
Logic 0 signal (max.)
Isolation (field side to logic)
Isolation groups
Filter times
HSC clock input rates (max.)
(Logic 1 Level = 15 to 26 VDC)
Number of inputs on simultaneously
Cable length (meters)
Analog inputs
Number of inputs
Type
Range
290
CPU 1212C
AC/DC/Relay
10/100 Mb/s
Transformer isolated, 1500 VDC
CAT5e shielded
85 to 264 VAC
47 to 63 Hz
80 mA at 120 VAC
40 mA at 240 VAC
240 mA at 120 VAC
120 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
20.4 to 28.8 VDC
300 mA (short circuit protected)
< 1 V peak to peak
8
Sink/Source (IEC Type 1 sink)
24 VDC at 4 mA, nominal
30 VDC, max.
35 VDC for 0.5 sec.
15 VDC at 2.5 mA
5 VDC at 1 mA
500 VAC for 1 minute
1
0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 ms (selectable in groups of 4)
Single phase: 100 KHz (Ia.0 to Ia.5) and 30 KHz (Ia.6 to Ia.7)
Quadrature phase: 80 KHz (Ia.0 to Ia.5) and 20 KHz (Ia.6 to Ia.7)
8
500 shielded, 300 unshielded, 50 shielded for HSC inputs
2
Voltage (single-ended)
0 to 10 V
CPU 1212C
DC/DC/Relay
20.4 to 28.8 VDC
--
400 mA at 24 VDC
1200 mA at 24 VDC
12 A at 28.8 VDC
Not isolated
-
10 ms at 24 VDC
L+ minus 4 VDC min.
Same as input line
System Manual, 11/2009, A5E02486680-02
CPU 1212C
DC/DC/DC
S7-1200 Programmable controller