西门子6ES7 221-1BH32-0XB0

6ES7 221-1BF32-0XB0

6ES7 221-1BH32-0XB0

*** 1221 DI 8x24 VDC

*** 1221 DI 16x24 VDC

Supply voltage

24 V DC

Yes

Yes

permissible range, lower limit (DC)

20.4 V

20.4 V

permissible range, upper limit (DC)

28.8 V

28.8 V

Input current

from backplane bus 5 V DC, max.

105 mA

130 mA

Digital inputs

• from load voltage L+ (without load), max.

4 mA; per channel

4 mA; per channel

Output voltage

Power supply to the tran***itters

• present

Yes

Yes

Power losses

Power loss, typ.

1.5 W

2.5 W

Digital inputs

Number of digital inputs

8

16

• In groups of

2

4

Input characteristic curve in accordance with IEC 61131, type 1

Yes

Yes

Number of simultaneously controllable inputs

• all mounting positi***

• • up to 40 °C, max.

8

16

• horizontal installation

• • up to 40 °C, max.

8

16

• • up to 50 °C, max.

8

16

• vertical installation

• • up to 40 °C, max.

8

16

Input voltage

• Type of input voltage

DC

DC

• Rated value (DC)

24 V

24 V

• for signal "0"

5 V DC at 1 mA

5 V DC at 1 mA

• for signal "1"

15 VDC at 2.5 mA

15 VDC at 2.5 mA

Input current

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

1 mA

1 mA

• for signal "1", min.

2.5 mA

2.5 mA

• for signal "1", typ.

4 mA; Typical

4 mA; Typical

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

• for interrupt inputs

• • Parameterizable

Yes

Yes

Cable length

• Cable length, shielded, max.

500 m

500 m

• Cable length unshielded, max.

300 m

300 m

Digital outputs

Number of digital outputs

0

0

short-circuit protection

No

No

Interrupts/diagnostics/status information

Alarms

• Alarms

Yes

Yes

• Diagnostic alarm

Yes

Yes