Siemens SIMATIC S7-1200 - Page 1445

Technical specifications
A.9 Digital signal modules (SMs)
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1445
Model
SM 1222 DQ 8 x Relay
SM 1222 DQ 8 Relay
Changeover
SM 1222 DQ 8 x 24 V DC
Isolation groups
2
8
1
Current per common (max.) 10 A 2 A 4 A
Inductive clamp voltage -- -- L+ minus 48 V, 1 W dis-
sipation
Switching delay 10 ms max. 10 ms max. 50 μs max. off to on
200 μs max. on to off
Maximum relay switching frequency
1 Hz
1 Hz
--
Lifetime mechanical (no load) 10,000,000 open/close
cycles
10,000,000 open/close
cycles
--
Lifetime contacts at rated load (N.O.
contact)
100,000 open/close cycles 100,000 open/close cy-
cles
--
Behavior on RUN to STOP Last value or substitute
value (default value 0)
Last value or substitute
value (default value 0)
Last value or substitute
value (default value 0)
Number of outputs on simultaneously 8
• 4 (no adjacent points)
at 60 °C horizontal or
50 °C vertical
• 8 at 55 °C horizontal
or 45 °C vertical
8
Cable length (meters) 500 m shielded,
150 m unshielded
500 m shielded,
150 m unshielded
500 m shielded,
150 m unshielded