SIEMENS PLC MODULE 6ES7221-1BF32-0XB0

About SIEMENS PLC MODULE 6ES7221-1BF32-0XB0

Data Sheet 6ES7221-1BF32-0XB0

SIMATIC S7-1200 Digital Input Module SM 1221 8 Digital Inputs (DI), 24 V DC, Sink/Source

General Information

• Product type designation: SM 1221, DI 824 V DC

Supply Voltage

• Rated value (DC): 24 V

• Permissible range: 20.4 28.8 V

Input Current

• From backplane bus (5 V DC), max.: 105 mA

• From load voltage L+ (without load), max. per channel: 4 mA

Power Loss

• Typical: 1.5 W

Digital Inputs

• Number of inputs: 8

• Grouped: in groups of 2

• Input characteristic curve: IEC 61131, Type 1

• Simultaneously controllable inputs (max.):

  • All mounting positions up to 40C: 8

  • Horizontal installation up to 50C: 8

  • Vertical installation up to 40C: 8

Input Voltage

• Rated value: 24 V

• Signal "0": 5 V DC at 1 mA

• Signal "1": 15 V DC at 2.5 mA

Input Current (per signal)

• Signal "0" max. (quiescent): 1 mA

• Signal "1" min.: 2.5 mA

• Signal "1" typical: 4 mA

Input Delay (at rated voltage)

• Standard inputs: parameterizable, selectable 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, 12.8 ms (in groups of four)

• Interrupt inputs: parameterizable

Cable Length

• Shielded: max. 500 m

• Unshielded: max. 300 m

Diagnostics / Status

• Diagnostic alarm: Yes

• LED indication for input status: Yes

Potential Separation

• Between channels: in groups of 2

Protection Class

• IP rating: IP20

Standards & Approvals

• CE mark, CSA, UL, cULus, FM, RCM, KC, Marine approval: Yes

Ecological Footprint

• Environmental product declaration: Yes

• Global warming potential (CO2 eq):

  • Total: 123 kg

  • Production: 12.1 kg

  • Operation: 111 kg

  • After end of life: -0.434 kg

Ambient Conditions

• Free fall: 0.3 m, five times (in package)

• Operating temperature: -20C to 60C

  • Horizontal installation: -20C to 60C

  • Vertical installation: -20C to 50C

  • Permissible temperature change: 3C/min from 5C to 55C

• Storage/transport temperature: -40C to 70C

• Air pressure (IEC 60068-2-13): 660 1080 hPa

• Relative humidity: max. 95% at 25C, no condensation

Mechanics / Material

• Required front connector: Yes

• Enclosure material: Plastic

Dimensions

• Width: 45 mm

• Height: 100 mm

• Depth: 75 mm

Weight

• Approx.: 170 g 

Technical Details