Siemens S7-1200 - Page 896

Technical specifications
A.7 Digital signal modules (SMs)
S7-1200 Programmable controller
896 System Manual, 03/2014, A5E02486680-AG
Table A- 114 Digital outputs
Model
SM1222
DQ 16 x Relay
SM1222
DQ 16 x 24 VDC
Number of outputs 16 16
Type
Relay, dry contact
Solid state - MOSFET (sourcing)
Voltage range
5 to 30 VDC or 5 to 250 VAC
20.4 to 28.8 VDC
Logic 1 signal at max. current
-
20 VDC min.
Logic 0 signal with 10K Ω load
-
0.1 VDC max.
Current (max.)
2.0 A
0.5 A
Lamp load
30 W DC/200 W AC
5 W
ON state contact resistance
0.2 Ω max. when new
0.6 Ω max.
Leakage current per point
--
10 μA max.
Surge current
7 A with contacts closed
8 A for 100 ms max.
Overload protection
No
No
Isolation (field side to logic) 1500 VAC for 1 minute (coil to
contact)
None (coil to logic)
500 VAC for 1 minute
Isolation resistance
100 MΩ min. when new
-
Isolation between open contacts
750 VAC for 1 minute
-
Isolation groups
4
1
Current per common (max.)
10 A
8 A
Inductive clamp voltage
-
L+ minus 48 V, 1 W dissipation
Switching delay 10 ms max. 50 μs max. off to on
200 μs max. on to off
Maximum relay switching frequency
1 Hz
-
Lifetime mechanical (no load)
10,000,000 open/close cycles
-
Lifetime contacts at rated load (N.O.
contact)
100,000 open/close cycles -
Behavior on RUN to STOP Last value or substitute value (default
value 0)
Last value or substitute value (default
value 0)
Number of outputs on simultaneously
• 8 (no adjacent points) at 60 °C
horizontal or 50 °C vertical
• 16 at 55 °C horizontal or 45 °C
vertical
16
Cable length (meters)
500 m shielded, 150 m unshielded
500 m shielded, 150 m unshielded