553BTechnical specifications
A.2 CPU 1211C
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
667
A.2.2
Digital inputs and outputs
Table A- 15 Digital inputs
Technical data
CPU 1211C AC/DC/Relay, DC/DC/Relay, and DC/DC/DC
Number of inputs
6
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
0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 ms (selectable in groups of 4)
HSC clock input rates (max.)
(Logic 1 Level = 15 to 26 VDC)
Single phase: 100 KHz
Quadrature phase: 80 KHz
Number of inputs on simultaneously
6
Cable length (meters)
500 m shielded, 300 m unshielded, 50 m shielded for HSC inputs
Table A- 16 Digital outputs
Technical data
CPU 1211C AC/DC/Relay and
DC/DC/Relay
CPU 1211C
DC/DC/DC
Number of outputs
4
4
Type
Relay, dry contact
Solid state - MOSFET (sourcing)
Voltage range
5 to 30 VDC or 5 to 250 VAC
20.4 to 28.8 VDC
Logic 1 signal at max. current
--
20 VDC min.
Logic 0 signal with 10 KΩ load
--
0.1 VDC 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
No
Isolation (field side to logic)
1500 VAC for 1 minute
(coil to contact)
None (coil to logic)
500 VAC for 1 minute
Isolation resistance
100 MΩ min. when new
--
Isolation between open contacts
750 VAC for 1 minute
--
Isolation groups
1
1
Inductive clamp voltage
--
L+ minus 48 VDC, 1 W dissipation