Siemens S7-1200 - Digital Inputs and Outputs

Technical specifications
A.4 CPU 1214C
S7-1200 Programmable controller
860 System Manual, 03/2014, A5E02486680-AG
Technical data
CPU 1214C
AC/DC/Relay
CPU 1214C
DC/DC/Relay
CPU 1214C
DC/DC/DC
Isolation (input power to logic) 1500 VAC 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
Internal fuse, not user replaceable
3 A, 250 V, slow blow
Table A- 53 Sensor power
Technical data
CPU 1214C
AC/DC/Relay
CPU 1214C
DC/DC/Relay
CPU 1214C
DC/DC/DC
Voltage range
20.4 to 28.8 VDC
L+ minus 4 VDC min.
Output current rating (max.)
400 mA (short-circuit protected)
Maximum ripple noise (<10 MHz)
< 1 V peak to peak
Same as input line
Isolation (CPU logic to sensor power)
Not isolated
A.4.3
Digital inputs and outputs
Table A- 54 Digital inputs
Technical data
CPU 1214C
AC/DC/Relay
CPU 1214C
DC/DC/Relay
CPU 1214C
DC/DC/DC
Number of inputs
14
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 Ib.5)
Number of inputs on simultaneously
• 7 (no adjacent points) at 60 °C horizontal or 50 °C vertical
• 14 at 55 °C horizontal or 45 °C vertical
Cable length (meters)
500 m shielded, 300 m unshielded, 50 m shielded for HSC inputs