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      Siemens 6ES7221-1BF22-0XA0
      Siemens 6ES7221-1BF22-0XA0
      Siemens 6ES7221-1BF22-0XA0
      Siemens 6ES7221-1BF22-0XA0
      Siemens 6ES7221-1BF22-0XA0
      Siemens 6ES7221-1BF22-0XA0
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      6ES7221-1BF22-0XA0

      Digital Input Module
      In Stock

      Product Information:

      SIMATIC S7-200, DIGITAL INPUT

      EM 221, FOR S7-22X CPU

      ONLY, 8 DI, 24V DC, SINK/SOURCE INPUT

      industrial automation system

      Warranty Policy
      We provide 1 year warranty for all remaining parts.
      The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      Return Notice
      The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
      Shiping Mode
      Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
      Parts Availability
      Moore automated offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
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      Technical specifications for 6ES7221-1BF22-0XA0

      • Manufacturer:
        Siemens
      • Product Category:
        PLC System
      • Spare Part Number:
        EM221
      • Estimated shipping dimensions:
        10.2x7.6x7.6cm
      • Weight:
        0.1 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        Germany
      • Place of shipment:
        Xiamen, Fujian, China
      • from backplane bus 5 V DC, max.:
        30 mA
      • Power loss, typ.:
        2 W
      • Number of digital inputs:
        8 inputs
      • Input current for signal:
        4 mA
      • Category Series:
        SIMATIC S7-200
      • Product Type:
        DIGITAL INPUT
      • Stock:
        20
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      FAQ

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      • What functional role does the 6ES7221-1BF22-0XA0 fulfill in a SIMATIC S7-200 automation architecture?
        The 6ES7221-1BF22-0XA0 serves as a dedicated 8-point digital input expansion module (EM 221) that extends the discrete input capability of a SIMATIC S7-22X CPU, enabling reliable acquisition of field-level DC logic signals within a modular PLC system.
      • How many digital input channels are integrated within the 6ES7221-1BF22-0XA0 and what is their electrical configuration?
        This module incorporates 8 digital inputs designed for sink/source (bidirectional) operation at 24 V DC, enabling flexible interfacing with a range of industrial sensor types.
      • What is the nominal voltage specification and logic threshold for the 6ES7221-1BF22-0XA0 inputs?
        The 6ES7221-1BF22-0XA0 is optimized for a rated input voltage of 24 V DC, with signal recognition thresholds of 0–5 V for logic ‘0’ and +15 V to +30 V for logic ‘1’ conditions.
      • What current consumption characteristics does the 6ES7221-1BF22-0XA0 exhibit?
        Input circuitry of the 6ES7221-1BF22-0XA0 draws a maximum of 30 mA from the 5 V backplane bus and approximately 4 mA per active input at the rated logic-1 voltage, making it suitable for energy-efficient distributed I/O expansion.
      • What is the typical power dissipation of the 6ES7221-1BF22-0XA0 module during operation?
        Under normal operating conditions, the 6ES7221-1BF22-0XA0 exhibits a typical power loss of approximately 2 W, contributing minimally to overall system thermal load.
      • What are the maximum permitted cabling distances supported by the 6ES7221-1BF22-0XA0?
        For robust field connectivity, the 6ES7221-1BF22-0XA0 supports shielded cables up to 500 m and unshielded cables up to 300 m, facilitating flexible system wiring in large control panels or plant zones.
      • What mechanical form factor and termination scheme does the 6ES7221-1BF22-0XA0 utilize?
        Mechanically, the 6ES7221-1BF22-0XA0 features plug-in I/O terminals for secure field wiring, and compact dimensions supporting its integration in DIN-rail mounted PLC racks with minimal footprint.
      • Are there any noteworthy limitations or considerations when deploying the 6ES7221-1BF22-0XA0?
        The 6ES7221-1BF22-0XA0 does not provide onboard output channels, and its input wiring must conform to the rated voltage and current characteristics to avoid signal integrity issues. Additionally, external protective measures (e.g., transient suppression) should be considered in high-noise environments.
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      Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.
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