General information

Product type designation

SB 1221 4xDI 5VDC 200kHz

SB 1221 4xDI 24VDC 200kHz

Input current

from backplane bus 5 V DC, typ.

50 mA

50 mA

Output voltage

Power supply to the transmitters

• ● Supply current, max.

4 mA; per channel

4 mA; per channel

Power loss

Power loss, typ.

1 W

1 W

Digital inputs

Number of digital inputs

4; Current-sourcing

4; Current-sourcing

• ● in groups of

1

1

Input characteristic curve in accordance with IEC 61131, type 1

Yes

Input characteristic curve in accordance with IEC 61131, type 2

Yes

Number of simultaneously controllable inputs

all mounting positions

• — up to 40 °C, max.

4

4

Input voltage

• ● Type of input voltage

DC

DC

• ● Rated value (DC)

5 V

24 V

• ● for signal "0"

0 to 1 V

0 to 5 V

• ● for signal "1"

2 to 6 V

+15 to +30V

Input current

• ● for signal "0", max. (permissible quiescent current)

3 mA

2 mA

• ● for signal "1", min.

6 mA

5.8 mA

• ● for signal "1", typ.

14 mA

Input delay (for rated value of input voltage)

for standard inputs

• — parameterizable

Yes; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four

Yes; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four

• — at "0" to "1", max.

2 μs

2.5 μs

for interrupt inputs

• — parameterizable

Yes

Yes

for counter/technological functions

• — parameterizable

Yes

Yes

Cable length

• ● shielded, max.

50 m; shielded, twisted pair

50 m; Standard input: 500 m, high-speed counters: 50 m