Siemens S7-1200 - Page 893

Technical specifications
A.7 Digital signal modules (SMs)
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
893
Model
SM 1221 DI 8 x 24 VDC
SM 1221 DI 16 x 24 VDC
Filter times 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 ms
(selectable in groups of 4)
0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 ms
(selectable in groups of 4)
Number of inputs on simultaneously
8
16
Cable length (meters)
500 m shielded, 300 unshielded
500 m shielded, 300 unshielded
Table A- 108 Wiring diagrams for the digital input SMs
SM 1221 DI 8 x 24 VDC (6ES7 221-1BF32-
0XB0)
SM 1221 DI 16 x 24 VDC (6ES7 221-1BH32-
0XB0)
① For sinking inputs, connect "-" to "M" (shown). For sourcing inputs, connect "+" to "M".
Table A- 109 Connector pin locations for SM 1221 DI 8 x 24 VDC (6ES7 221-1BF32-0XB0)
Pin
X10
X11
1
GND
No connection
2
No connection
No connection
3
1M
2M
4
DI a.0
DI a.4
5
DI a.1
DI a.5
6
DI a.2
DI a.6
7
DI a.3
DI a.7