Siemens S7-1200 - Digital Inputs and Outputs

Technical specifications
A.6 CPU 1217C
S7-1200 Programmable controller
882 System Manual, 03/2014, A5E02486680-AG
Table A- 92 Power supply
Technical data
CPU 1217C DC/DC/DC
Voltage range
20.4 VDC to 28.8 VDC
Line frequency
--
Input current (max. load)
CPU only
600 mA at 24 VDC
CPU with all
expansion
accessories
1600 mA at 24 VDC
Inrush current (max.)
12 A at 28.8 VDC
Isolation (input power to logic)
Not isolated
Hold up time (from loss of power)
10 ms at 24 VDC
Internal fuse, not user replaceable
3 A, 250 V, slow blow
Table A- 93 Sensor power
Technical data
CPU 1217C DC/DC/DC
Voltage range
L+ minus 4 VDC min.
Output current rating (max.)
400 mA (short-circuit protected)
Maximum ripple noise (<10 MHz)
Same as input line
Isolation (CPU logic to sensor power)
Not isolated
A.6.3
Digital inputs and outputs
Table A- 94 Digital inputs
Technical data
CPU 1217C DC/DC/DC
Number of inputs 14: total:
10: Sink/source (IEC Type 1 sink)
4: 1.5 V differential
Type: Sink/source
(IEC Type 1 sink)
Ia.0 to Ia.7, Ib.0 to Ib.1
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 (functional isolation)
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