Siemens SIMATIC S7-1200 - Page 1457

Technical specifications
A.9 Digital signal modules (SMs)
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1457
Model
SM 1223 DI 8 x 120/230 V AC / DQ 8 x Relay
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 V AC / DQ 8 x Relay
Number of outputs
8
Type
Relay, mechanical
Voltage range
5 to 30 V DC or 5 to 250 V AC
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 V AC (coil to contact)
None (coil to logic)
Isolation groups 2
Current per common (max.)
10 A
Inductive clamp voltage
--
Switching delay (max.)
10 ms
Maximum relay switching frequency
1 Hz
Lifetime mechanical (no load)
10,000,000 open/close cycles
Lifetime contacts at rated load
1000,000 open/close cycles
Behavior on RUN to STOP
Last value or substitute value (default value 0)
Number of outputs 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, 150 m unshielded