Sm 1221 Digital Input (Di) - Siemens SIMATIC S7-1200 Manual

A.3.2

SM 1221 digital input (DI)

Table A- 16 SM 1221 digital input (DI)
Technical data
Order number
Number of inputs (DI)
See specifications (Page 249).
Dimensions W x H x D (mm)
Weight
Power dissipation
Current consumption
Table A- 17 Wiring diagram for SM 1221 digital input (DI) modules
SM 1221 DI 8 (24 VDC)
①
For sinking inputs, connect "-" to "M" (shown). For sourcing inputs connect "+" to "M".
Easy Book
Manual, 11/2011, A5E02486774-04
SM 1221 DI 8 (24VDC)
6ES7 221-1BF30-0XB0
8
45 x 100 x 75
170 grams
1.5 W
SM Bus 105 mA
24 VDC 4 mA / input used
SM 1221 DI 16 (24 VDC)
Technical specifications
A.3 Digital I/O modules
SM 1221 DI 16 (24VDC)
6ES7 221-1BH30-0XB0
16
45 x 100 x 75
210 grams
2.5 W
130 mA
4 mA / input used
245