Digital Inputs And Outputs - Siemens SIMATIC S7 System Manual

A.2.2

Digital inputs and outputs

Table A- 15 Digital inputs
Technical data
Number of inputs
Type
Rated voltage
Continuous permissible voltage
Surge voltage
Logic 1 signal (min.)
Logic 0 signal (max.)
Isolation (field side to logic)
Isolation groups
Filter times
HSC clock input rates (max.)
(Logic 1 Level = 15 to 26 VDC)
Number of inputs on simultaneously
Cable length (meters)
Table A- 16 Digital outputs
Technical data
Number of outputs
Type
Voltage range
Logic 1 signal at max. current
Logic 0 signal with 10 KΩ load
Current (max.)
Lamp load
ON state resistance
Leakage current per point
Surge current
Overload protection
Isolation (field side to logic)
Isolation resistance
Isolation between open contacts
Isolation groups
Inductive clamp voltage
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
CPU 1211C AC/DC/Relay, DC/DC/Relay, and DC/DC/DC
6
Sink/Source (IEC Type 1 sink)
24 VDC at 4 mA, nominal
30 VDC, max.
35 VDC for 0.5 sec.
15 VDC at 2.5 mA
5 VDC at 1 mA
500 VAC for 1 minute
1
0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 ms (selectable in groups of 4)
Single phase: 100 KHz
Quadrature phase: 80 KHz
6
500 m shielded, 300 m unshielded, 50 m shielded for HSC inputs
CPU 1211C AC/DC/Relay and
DC/DC/Relay
4
Relay, dry contact
5 to 30 VDC or 5 to 250 VAC
--
--
2.0 A
30 W DC / 200 W AC
0.2 Ω max. when new
--
7 A with contacts closed
No
1500 VAC for 1 minute
(coil to contact)
None (coil to logic)
100 MΩ min. when new
750 VAC for 1 minute
1
--
553BTechnical specifications
A.2 CPU 1211C
CPU 1211C
DC/DC/DC
4
Solid state - MOSFET (sourcing)
20.4 to 28.8 VDC
20 VDC min.
0.1 VDC max.
0.5 A
5 W
0.6 Ω max.
10 μA max.
8 A for 100 ms max.
No
500 VAC for 1 minute
--
--
1
L+ minus 48 VDC, 1 W dissipation
667