Siemens S7-1200 - Page 905

Technical specifications
A.7 Digital signal modules (SMs)
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
905
Table A- 133 Digital inputs
Model
SM 1223 DI 8 x 120/230 VAC / DQ 8 x Relay
Number of inputs
8
Type
IEC Type 1
Rated voltage
120 VAC at 6 mA, 230 VAC at 9 mA
Continuous permissible voltage
264 VAC
Surge voltage
--
Logic 1 signal (min.)
79 VAC at 2.5 mA
Logic 0 signal (max.)
20 VAC at 1 mA
Leakage current (max.)
1 mA
Isolation (field side to logic)
1500 VAC for 1 minute
Isolation groups
1
4
Input delay times Typical: 0.2 to 12.8 ms, user selectable
Maximum: -
Connection of 2 wire proximity sensor (Bero)
(max.)
1 mA
Cable length Unshielded: 300 meters
Shielded: 500 meters
Number of inputs on simultaneously
8
1
Channels within a group must be of the same phase.
Table A- 134 Digital outputs
Model
SM 1223 DI 8 x 120/230 VAC / DQ 8 x Relay
Number of outputs
8
Type
Relay, dry contact
Voltage range
5 to 30 VDC or 5 to 250 VAC
Logic 1 signal at max. current
--
Logic 0 signal with 10K Ω load
--
Current (max.)
2.0 A
Lamp load
30 W DC / 200 W AC
ON state contact resistance
0.2 Ω max. when new
Leakage current per point
--
Surge current
7 A with contacts closed
Overload protection
No
Isolation (field side to logic) 1500 VAC for 1 minute (coil to contact)
None (coil to logic)
Isolation resistance
100 MΩ min. when new
Isolation between open contacts
750 VAC for 1 minute
Isolation groups
2
Current per common (max.)
10 A
Inductive clamp voltage
--