553BTechnical specifications
A.8 Digital signal boards (SBs)
S7-1200 Programmable controller
720
System Manual, 11/2011, A5E02486680-05
A.8
Digital signal boards (SBs)
A.8.1
SB 1221 200 kHz digital input specifications
Table A- 108 General specifications
Technical data
SB 1221 DI 4 x 24 VDC, 200 kHz
SB 1221 DI 4 x 5 VDC, 200 kHz
Order number
6ES7 221-3BD30-0XB0
6ES7 221-3AD30-0XB0
Dimensions W x H x D (mm)
38 x 62 x 21
38 x 62 x 21
Weight
35 grams
35 grams
Power dissipation
1.5 W
1.0 W
Current consumption (SM Bus)
40 mA
40 mA
Current consumption (24 VDC)
7 mA / input + 20 mA
15 mA / input + 15 mA
Table A- 109 Digital inputs
Technical data
SB 1221 DI 4 x 24 VDC, 200 kHz
SB 1221 DI 4 x 5 VDC, 200 kHz
Number of inputs
4
4
Type
Source
Source
Rated voltage
24 VDC at 7 mA, nominal
5 VDC at 15 mA, nominal
Continuous permissible voltage
28.8 VDC
6 VDC
Surge voltage
35 VDC for 0.5 sec.
6 V
Logic 1 signal (min.)
L+ minus 10 VDC at 2.9 mA
L+ minus 2.0 VDC at 5.1 mA
Logic 0 signal (max.)
L+ minus 5 VDC at 1.4 mA
L+ minus 1.0 VDC at 2.2 mA
HSC clock input rates (max.)
Single phase: 200 kHz
Quadrature phase: 160 kHz
Single phase: 200 kHz
Quadrature phase: 160 kHz
Isolation (field side to logic)
500 VAC for 1 minute
500 VAC for 1 minute
Isolation groups
1
1
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
4
4
Cable length (meters)
50 shielded twisted pair
50 shielded twisted pair