siemens-6es7221-1bh32-0xb0
siemens-6es7221-1bh32-0xb0

Siemens 6ES7221 1BH32 0XB0

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Description

The Siemens 6ES7221 1BH32 0XB0 is the SIMATIC S7-1200 series Digital input SM 1221 module, it has 16 DI & 24 V DC, Sink/Source. The part number 6ES7221-1BH32-0XB0 refers to a Siemens SM 1221 Digital Input Module that is part of the Siemens S7-1200 series of programmable logic controllers (PLCs). This module is designed to expand the input capacity of the S7-1200 PLC by providing additional digital input channels. If need this 6ES72211BH320XB0 contact BAT Power Solution, Via E-mail/WhatsApp: +8801713722455/+8801911300632

Key Features Siemens 6ES7221 1BH32 0XB0

  • Digital Inputs:
    • The SM 1221 module provides 16 digital input channels.
    • These inputs are designed to accept standard 24V DC signals, which is typical for industrial automation environments.
  • 24V DC Operation:
    • The module operates on a 24V DC supply, which is commonly used in industrial control systems for its reliability and safety.
  • Status Indicators:
    • Each input channel has a corresponding LED indicator, allowing for easy status monitoring of the inputs directly on the module.
  • Compact Design:
    • The module has a compact form factor, making it easy to integrate into control cabinets without taking up much space.
  • Seamless Integration:
    • The SM 1221 module is designed to integrate seamlessly with the Siemens S7-1200 PLC system, expanding its capability to interface with additional digital input devices such as sensors, switches, and buttons.

 

General information
Product type designation SM 1221, DI 16×24 V DC
Supply voltage
Rated value (DC) 24 V
permissible range, lower limit (DC) 20.4 V
permissible range, upper limit (DC) 28.8 V
Input current
from backplane bus 5 V DC, max. 130 mA
Digital inputs
●   from load voltage L+ (without load), max. 4 mA; per channel
output voltage / header
supply voltage of the transmitters / header
●   present Yes
Power loss
Power loss, typ. 2.5 W
Digital inputs
Number of digital inputs 16
●   in groups of 4
Input characteristic curve in accordance with IEC 61131, type 1 Yes
Number of simultaneously controllable inputs
all mounting positions
— up to 40 °C, max. 16
horizontal installation
— up to 40 °C, max. 16
— up to 50 °C, max. 16
vertical installation
— up to 40 °C, max. 16
Input voltage
●   Rated value (DC) 24 V
●   for signal “0” 5 V DC at 1 mA
●   for signal “1” 15 V DC at 2.5 mA
Input current
●   for signal “0”, max. (permissible quiescent current) 1 mA
●   for signal “1”, min. 2.5 mA
●   for signal “1”, typ. 4 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
for interrupt inputs
— parameterizable Yes
Cable length
●   shielded, max. 500 m
●   unshielded, max. 300 m
Interrupts/diagnostics/status information
Alarms
●   Diagnostic alarm Yes
Diagnostics indication LED
●   for status of the inputs Yes
Potential separation
Potential separation digital inputs
●   between the channels, in groups of 4
Degree and class of protection
IP degree of protection IP20
Standards, approvals, certificates
CE mark Yes
CSA approval Yes
UL approval Yes
cULus Yes
FM approval Yes
RCM (formerly C-TICK) Yes
KC approval Yes
Marine approval Yes
Ambient conditions
Free fall
●   Fall height, max. 0.3 m; five times, in product package
Ambient temperature during operation
●   min. -20 °C
●   max. 60 °C
●   permissible temperature change 5°C to 55°C, 3°C / minute
Ambient temperature during storage/transportation
●   min. -40 °C
●   max. 70 °C
Air pressure acc. to IEC 60068-2-13
●   Storage/transport, min. 660 hPa
●   Storage/transport, max. 1 080 hPa
Relative humidity
●   Operation at 25 ℃ without condensation, max. 95%
connection method
required front connector Yes
Mechanics/material
Enclosure material (front)
●   Plastic Yes
Dimensions
Width 45 mm
Height 100 mm
Depth 75 mm
Weights
Weight, approx. 210 g

The Siemens 6ES7221-1BH32-0XB0 SM 1221 Digital Input Module is a versatile expansion module for the S7-1200 PLC series, offering 16 digital input channels. It is well-suited for a wide range of industrial automation tasks, providing reliable input signal processing for applications in machine automation, process control, and building management.

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