Siemens SIMATIC S7-1200

Technical specifications
A.5 CPU 1212C
S7-1200 Programmable controller
1388 System Manual, V4.2, 09/2016, A5E02486680-AK
A.5.3
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 V DC at 4 mA, nominal
Continuous permissible voltage 30 V DC, max.
Surge voltage
35 V DC for 0.5 sec.
Logic 1 signal (min.)
15 V DC at 2.5 mA
Logic 0 signal (max.)
5 V DC at 1 mA
Isolation (field side to logic)
707 V DC (type test)
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 V DC)
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
Table A- 36 Digital outputs
Technical data
CPU 1212C AC/DC/Relay
and DC/DC/Relay
CPU 1212C
DC/DC/DC
Number of outputs
6
Type
Relay, mechanical
Solid state - MOSFET (sourcing)
Voltage range
5 to 30 V DC or 5 to 250 V AC
20.4 to 28.8 V DC
Logic 1 signal at max. current
--
20 V DC min.
Logic 0 signal with 10 KΩ load
--
0.1 V DC max.
Current (max.)
2.0 A
0.5 A
Lamp load
30 W DC / 200 W AC
5 W
ON state resistance
0.2 Ω max. when new
0.6 Ω max.
Leakage current per point
--
10 μA max.
Surge current 7 A with contacts closed 8 A for 100 ms max.
Overload protection
No
Isolation (field side to logic) 1500 V AC (coil to contact)
None (coil to logic)
707 V DC (type test)
Isolation groups
2
1
Isolation (group-to-group)
1500 V AC
1
--
Inductive clamp voltage
--
L+ minus 48 V DC, 1 W dissipation
Switching delay (Qa.0 to Qa.3) 10 ms max. 1.0 μs max., off to on
3.0 μs max., on to off