Siemens SIMATIC S7-1200

Technical specifications
A.13 Digital signal boards (SBs)
S7-1200 Programmable controller
1500 System Manual, V4.2, 09/2016, A5E02486680-AK
A.13
Digital signal boards (SBs)
A.13.1
SB 1221 200 kHz digital input specifications
Table A- 185 General specifications
Technical data
SB 1221 DI 4 x 24 V DC, 200 kHz
SB 1221 DI 4 x 5 V DC, 200 kHz
Article number
6ES7221-3BD30-0XB0
6ES7221-3AD30-0XB0
Dimensions W x H x D (mm) 38 x 62 x 21
Weight
35 grams
Power dissipation 1.5 W 1.0 W
Current consumption (SM Bus)
40 mA
Current consumption (24 V DC)
7 mA / input + 20 mA
15 mA / input + 15 mA
Table A- 186 Digital inputs
Technical data
SB 1221 DI 4 x 24 V DC, 200 kHz
SB 1221 DI 4 x 5 V DC, 200 kHz
Number of inputs
4
Type
Source
Rated voltage
24 V DC at 7 mA, nominal
5 V DC at 15 mA, nominal
Continuous permissible voltage
28.8 V DC
6 V DC
Surge voltage
35 V DC for 0.5 sec.
6 V
Logic 1 signal 0 V (10 mA) to L+ minus 10 V (2.9 mA) 0 V (20 mA) to L+ minus 2.0 V ( 5.1
mA)
Logic 0 signal
L+ minus 5 V (1.4 mA) to L+ (0 mA)
L+ minus 1.0 V (2.2 mA) to L + (0 mA)
HSC clock input rates (max.) Single phase: 200 kHz
Quadrature phase: 160 kHz
Isolation (field side to logic)
707 V DC (type test)
Isolation groups
1
Filter times
us settings
0.1, 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, 10.0,12.8, 20.0
ms settings
0.05, 0.1, 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, 10.0, 12.8, 20.0
Number of inputs on simultaneously
• 2 (no adjacent points) at 60 °C
horizontal or 50 °C vertical
• 4 at 55 °C horizontal or 45 °C verti-
cal
4
Cable length (meters)
50 shielded twisted pair