Siemens S7-1200 - Digital Inputs and Outputs

Technical specifications
A.3 CPU 1212C
S7-1200 Programmable controller
850 System Manual, 03/2014, A5E02486680-AG
Technical data
CPU 1212C
AC/DC/Relay
CPU 1212C
DC/DC/Relay
CPU 1212C
DC/DC/DC
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- 34 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.
Output current rating (max.) 300 mA (short-circuit
protected)
300 mA (short-circuit
protected)
300 mA (short-circuit
protected)
Maximum ripple noise (<10 MHz)
< 1 V peak to peak
Same as input line
Same as input line
Isolation (CPU logic to sensor power)
Not isolated
Not isolated
Not isolated
A.3.3
Digital inputs and outputs
Table A- 35 Digital inputs
Technical data
CPU 1212C AC/DC/Relay, DC/DC/Relay, and DC/DC/DC
Number of inputs
8
Type
Sink/Source (IEC Type 1 sink)
Rated voltage
24 VDC at 4 mA, nominal
Continuous permissible voltage
30 VDC, max.
Surge voltage
35 VDC for 0.5 sec.
Logic 1 signal (min.)
15 VDC at 2.5 mA
Logic 0 signal (max.)
5 VDC at 1 mA
Isolation (field side to logic)
500 VAC for 1 minute
Isolation groups
1
Filter times us settings: 0.1, 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, 10.0, 12.8, 20.0
ms settings: 0.05, 0.1, 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, 10.0, 12.8, 20.0
HSC clock input rates (max.)
(Logic 1 Level = 15 to 26 VDC)
100/80 kHz (Ia.0 to Ia.5)
30 /20 kHz (Ia.6 to Ia.7)
Number of inputs on simultaneously 4 (no adjacent points) at 60 °C horizontal or 50 °C vertical
8 at 55 °C horizontal or 45 °C vertical
Cable length (meters)
500 m shielded, 300 m unshielded, 50 m shielded for HSC inputs