Siemens SIMATIC S7 System Manual page 696

553BTechnical specifications
A.5 Digital signal modules (SMs)
Model
Logic 0 signal with 10 KΩ load
Current (max.)
Lamp load
ON state contact resistance
Leakage current per point
Surge current
Overload protection
Isolation (field side to logic)
Isolation resistance
Isolation between open contacts
Isolation groups
Current per common
Inductive clamp voltage
Switching delay
Maximum relay switching frequency
Lifetime mechanical (no load)
Lifetime contacts at rated load
Behavior on RUN to STOP
Number of outputs on simultaneously 8
Cable length (meters)
696
SM 1223 SM 1223
DI 8 x 24 VDC, DQ DI 16 x 24 VDC,
8 x Relay DQ 16 x Relay
--
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
2 4
10A 8 A
--
10 ms max.
1 Hz
10,000,000 open/close cycles
100,000 open/close cycles
Last value or substitute value (default value 0)
16
500 m shielded, 150 m unshielded
SM 1223 SM 1223
DI 8 x 24 VDC, DQ DI 16 x 24 VDC, DQ
8 x 24 VDC 16 x 24 VDC
0.1 VDC, max.
0.5 A
5 W
0.6 Ω max.
10 μA max.
8 A for 100 ms max.
500 VAC for 1 minute
--
--
1 1
4 A 8 A
L+ minus 48 V, 1 W dissipation
50 μs max. off to on
200 μs max. on to off
--
--
--
8 16
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05