Siemens SIMATIC S7-1200 - Page 1452

Technical specifications
A.9 Digital signal modules (SMs)
S7-1200 Programmable controller
1452 System Manual, V4.2, 09/2016, A5E02486680-AK
Model
SM 1223
DI 8 x 24 V DC,
DQ 8 x Relay
SM 1223
DI 16 x 24 V DC,
DQ 16 x Relay
SM 1223
DI 8 x 24 V DC, DQ
8 x 24 V DC
SM 1223
DI 16 x 24 V DC,
DQ 16 x 24 V DC
Number of inputs on simultaneously 8
• 8 (no adjacent
points) at 60 °C
horizontal or
50 °C vertical
• 16 at 55 °C
horizontal or
45 °C vertical
8 16
Cable length (meters) 500 m shielded,
300 m unshielded
500 m shielded,
300 m unshielded
500 m shielded,
300 m un-
shielded
500 m shielded,
300 m unshielded
Table A- 125 Digital outputs
Model
SM 1223
DI 8 x 24 V DC,
DQ 8 x Relay
SM 1223
DI 16 x 24 V DC,
DQ 16 x Relay
SM 1223
DI 8 x 24 V DC,
DQ 8 x 24 V DC
SM 1223
DI 16 x 24 V DC,
DQ 16 x 24 V DC
Number of outputs
8
16
8
16
Type Relay, mechanical Relay, mechanical Solid state -
MOSFET (sourc-
ing)
Solid state -
MOSFET (sourcing)
Voltage range 5 to 30 V DC or
5 to 250 V AC
5 to 30 V DC or 5
to 250 V AC
20.4 to 28.8 V DC 20.4 to 28.8 V DC
Logic 1 signal at max. current
--
--
20 V DC, min.
20 V DC, min.
Logic 0 signal with 10 KΩ load
--
--
0.1 V DC, max.
0.1 V DC, max.
Current (max.)
2.0 A
2.0 A
0.5 A
0.5 A
Lamp load 30 W DC / 200 W
AC
30 W DC / 200 W
AC
5 W 5 W
ON state contact resistance 0.2 Ω max. when
new
0.2 Ω max. when
new
0.6 Ω max. 0.6 Ω max.
Leakage current per point
--
--
10 μA max.
10 μA max.
Surge current 7 A with contacts
closed
7 A with contacts
closed
8 A for 100 ms
max.
8 A for 100 ms max
Overload protection
No
No
No
No
Isolation (field side to logic) 1500 V AC (coil to
contact)
None (coil to logic)
1500 V AC (coil to
contact)
None (coil to logic)
707 V DC (type
test)
707 V DC (type
test)
Isolation groups 2 4 1 1
Current per common
10A
8 A
4 A
8 A
Inductive clamp voltage -- -- L+ minus 48 V,
1 W dissipation
L+ minus 48 V,
1 W dissipation
Switching delay 10 ms max. 10 ms max. 50 μs max. off to
on
200 μs max. on to
off
50 μs max. off to
on200 μs max. on
to off