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Siemens 6ES7221-1BH22-0XA0 16-channel 24 V DC digital input module product photographs
Siemens 6ES7221-1BH22-0XA0 16-channel 24 V DC digital input module product photographs
Siemens 6ES7221-1BH22-0XA0 16-channel 24 V DC digital input module product photographs

Siemens 6ES7221-1BH22-0XA0 16-channel 24 V DC digital input module

EMAIL SALES
Siemens S7-200 / EM 221
6ES7221-1BH22-0XA0 — 16-channel 24 V DC digital input module

Adds discrete input acquisition for the specified S7-22X CPU scope. Sixteen DC channels support sinking or sourcing input arrangements.

SiemensS7-200 / EM 22116-channel 24 V DC digital input module
Sales managerTiffany Guan
Mobile / WhatsApp+86 18030235313
6ES7221-1BH22-0XA0 product profile
Product familyS7-200 / EM 221
Exact model6ES7221-1BH22-0XA0
Digital inputs16
Nominal signal voltage24 V DC
Input arrangementSinking / sourcing
CPU scopeS7-22X only
  • Brand:

    SIEMENS
  • Item NO.:

    6ES7221-1BH22-0XA0
6ES7221-1BH22-0XA0 configuration inquiry

Get a precise quote for 6ES7221-1BH22-0XA0

Email Sales
Sales managerTiffany Guan
WhatsApp+86 18030235313

6ES7221-1BH22-0XA0 functions and installation

Select the input expansion against the host CPU and the actual sensor circuit arrangement. During acceptance, relate each field signal to its assigned program input and verify the corresponding state changes.

Signal acquisitionAdds sixteen digital input channels.
Sensor interfaceReceives nominal 24 V DC field signals.
Circuit arrangementSupports correctly wired sinking or sourcing inputs.
Host relationshipOperates within the specified S7-22X CPU scope.

Installation and selection boundaries

  • This is an input module, not a relay or transistor output module.
  • Match the S7-22X CPU scope before reviewing the expansion arrangement.
  • Confirm field-device polarity and input common connections.
Official product data

6ES7221-1BH22-0XA0 key specifications

Module designation EM 221
Host CPU scope S7-22X only
Digital input channels 16
Rated input signal 24 V DC
Input arrangement Sinking / sourcing

Siemens exact-product catalogue and applicable S7 installation information.

Pre-order check 01

Installation environment

Use the installation drawing for the actual equipment and complete these checks before return to service.

  • De-energize the host and affected field circuits before changing the module.
  • Identify the input common connections and the field-device signal polarity.
  • Retain conductor labels and inspect the module connection to the host arrangement.
  • Check field signal changes against the input states used by the program.
Retain the approved installation drawing and record the controlled acceptance checks.
Pre-order check 02

Compatibility confirmation

Match the complete item, actual connections and required installed function.

Host controller
Require the S7-22X CPU scope listed for this module.
Signal level
Use nominal 24 V DC digital input circuits.
Sink/source arrangement
Match the field device and the correctly wired input common.
Application addressing
Compare expansion position and the input addresses used by the program.
Module purpose
Select for input acquisition, not for directly switching output loads.
Match host scope, input polarity and address assignment before commissioning the added signals.
Recommended model families

More Siemens models

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Separate product references; inclusion does not establish compatibility or interchangeability.

Additional published brands

Additional Advantage Models

Bently Nevada / ABBBently Nevada 330102-00-12-10-01-05ABB PM5132-T-ETHBently Nevada 330851-01-000-020-10-00-00

Separate product references; inclusion does not establish compatibility or interchangeability.

Siemens / Bently NevadaSiemens 6ES7143-5BF00-0BA0Siemens 6ES5948-3UA23Bently Nevada 330876-03-10-00-00

Separate product references; inclusion does not establish compatibility or interchangeability.

Bently Nevada / SiemensBently Nevada 330854-080-24-05Siemens 6ES7144-1GB31-0XB0Siemens 6ES5948-3UA13

Separate product references; inclusion does not establish compatibility or interchangeability.

Bently NevadaBently Nevada 330130-070-01-00Bently Nevada 330905-00-25-05-02-CNBently Nevada 330876-01-50-01-05

Separate product references; inclusion does not establish compatibility or interchangeability.

Siemens / ABB / Bently NevadaSiemens 6ES7144-4PF00-0AB0ABB PM5072-T-ETHBently Nevada 330902-00-95-05-02-05

Separate product references; inclusion does not establish compatibility or interchangeability.

ABB / Bently NevadaABB 3HAC061275-001Bently Nevada 330903-00-07-10-01-CNBently Nevada 330903-00-07-10-01-00

Separate product references; inclusion does not establish compatibility or interchangeability.

Siemens / Bently Nevada / ABBSiemens 6ES7143-4BF50-0AA0Bently Nevada 330854-080-25-05ABB PM5112-R-ETH

Separate product references; inclusion does not establish compatibility or interchangeability.

SiemensSiemens 6ES7142-6BH00-0AB0Siemens 6ES7143-5AH00-0BA0Siemens 6ES5541-8AA11

Separate product references; inclusion does not establish compatibility or interchangeability.

Every model above links to an existing Nordwel product page. Send the full part number for configuration and availability confirmation. CHECK WITH SALES

6ES7221-1BH22-0XA0 Order Guide

Check the complete requested item against the actual installation before ordering.
1Confirm the itemRecord 6ES7221-1BH22-0XA0 exactly as requested and compare the delivered nameplate.
2Describe the installationProvide the host equipment, existing connections and required supplied scope.
3Review the applicationRequire the S7-22X CPU scope listed for this module.
4Check the electrical interfaceUse nominal 24 V DC digital input circuits.
5Plan the replacementDe-energize the host and affected field circuits before changing the module.
6Accept the assemblyMatch host scope, input polarity and address assignment before commissioning the added signals.

Middle East Demand & Specialist Models

Selected specialist-brand products requested for regional projects and available on Nordwel.

Compare the complete identity, installed hardware and application requirements before selection.
Siemens6GK1143-0AA01

A separate product reference; verify its own installation and configuration.

Specialist model
Siemens6ES5951-7LB21

A separate product reference; verify its own installation and configuration.

Specialist model
Siemens6ES5945-7UA23

A separate product reference; verify its own installation and configuration.

Specialist model
Bently Nevada330130-075-01-00

A separate product reference; verify its own installation and configuration.

Specialist model
Bently Nevada330104-00-08-15-02-00

A separate product reference; verify its own installation and configuration.

Specialist model
Bently Nevada330103-02-04-10-02-CN

A separate product reference; verify its own installation and configuration.

Specialist model
Nordwel customer support

Company Services & FAQ

Support for 6ES7221-1BH22-0XA0 selection, quotation and controlled replacement planning.

Company services

Item and application reviewCompare the complete item with the installed configuration and required supplied scope.
Fast quotation supportConfirm pricing, availability and lead time against current Nordwel business records.
Worldwide shipping coordinationConfirm destination, freight option, packing requirements and shipment tracking workflow.
Order follow-upProvide pre-order clarification and shipment-status support through the assigned sales contact.

6ES7221-1BH22-0XA0 FAQ

Which host scope is specified for 6ES7221-1BH22-0XA0?The module is specified only for S7-22X CPUs. Do not treat its general family name or connector shape as approval for a different controller platform.
Does EM 221 add outputs to the controller?No. This item adds 16 digital inputs. It is not an output module for switching actuators or relay loads.
What nominal field-signal voltage should be used for these inputs?The nominal input signal is 24 V DC. Confirm field wiring and input common connections before applying sensor signals.
What must match when choosing a sinking or sourcing sensor arrangement?The field-device output polarity and the input common wiring must form the correct circuit together. The module supports sinking/sourcing arrangements, but wiring still determines whether a given installation is correct.
How should the sixteen added signals be related to the application program?Compare each field conductor with the expansion position and the configured input address. Verify the actual input state changes at the addresses used by the application.
How should 6ES7221-1BH22-0XA0 be handled before installation?Follow the site's ESD handling procedure. Keep the module in protective packaging until it is needed, hold it by the housing, and avoid touching exposed contacts or circuitry.
What is the first check if a sensor changes state but its program input does not?Compare the field voltage and common connection with the intended input terminal, then confirm the address observed by the program. Make measurements using the approved safe procedure.
Should field signals remain energized while this input module is replaced?No hardware replacement should proceed without isolating the host and the affected field circuits under the site procedure. Verify the isolation before disconnecting conductors.
What information helps review a quotation for 6ES7221-1BH22-0XA0?Provide the complete module code, host CPU, expansion arrangement and required supplied scope. Include the sensor circuit arrangement when the wiring interface needs review.
How can the module be accepted without starting the machine?With outputs and machinery secured, operate the permitted field input tests and compare the observed input states with the wiring schedule. This checks acquisition and addressing before normal operation.
Sales managerTiffany Guan
WhatsApp+86 18030235313
ICS TRIPLEX / TRUSTED

Trusted T8000 Series Model Directory

Software, licensing, controller, interface, shield and power-supply references.

Software & Licensing

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T8017Peer to Peer Communications Software Package
T8019Process Control Algorithm Software Package
T8030SOPC Server Package
T8082DIEC1131 Toolset Suite; Licensed to Hard Drive
T8082UIEC1131 Toolset Suite; USB Port Dongle
T8090MLicense for SIS Workstation 1.0 MED

Controller, Interface & Power Modules

T8100CController Chassis Module
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T8123CProcessor Interface Adaptor Module (IRIG-B and MODBUS Master)
T8151CCommunication Interface Module

Communication Adaptors, Shield & Power Modules

T8153CCommunication Interface Adaptor Module
T8191Shield Module
T8193Shield Module
T8231Power Supply Module
Exact-match links open existing Nordwel product pages. Reference-only models remain unlinked until a matching product page is published.
ICS TRIPLEX / I/O CABLES

Companion-Slot to FTA Cable Selection

Internal cable references for 40-channel input and output connections to field termination assemblies.

INPUT · 40 CHANNEL
TC-201-02-2M5

I/O Companion Slot to FTA · 2.5 m

INPUT · 40 CHANNEL
TC-201-02-4M5

I/O Companion Slot to FTA · 4.5 m

INPUT · 40 CHANNEL
TC-201-02-6M5

I/O Companion Slot to FTA · 6.5 m

INPUT · 40 CHANNEL
TC-201-02-8M5

I/O Companion Slot to FTA · 8.5 m

INPUT · 40 CHANNEL
TC-201-02-10M5

I/O Companion Slot to FTA · 10.5 m

INPUT · 40 CHANNEL
TC-201-02-12M5

I/O Companion Slot to FTA · 12.5 m

OUTPUT · 40 CHANNEL
TC-205-02-4M5

I/O Companion Slot to FTA · 4.5 m

OUTPUT · 40 CHANNEL
TC-205-02-6M5

I/O Companion Slot to FTA · 6.5 m

OUTPUT · 40 CHANNEL
TC-205-02-8M5

I/O Companion Slot to FTA · 8.5 m

Exact-match links open existing Nordwel product pages. Confirm channel direction, cable length and FTA compatibility before quotation.
Siemens S7-200 / EM 221

Applications & Why Choose Nordwel

Application and maintenance planning for 6ES7221-1BH22-0XA0 in the correctly matched installation.

Application areas

01Additional discrete sensingExtends digital input acquisition in the specified CPU installation.
02Sensor circuit reviewSupports checks of signal polarity and common wiring.
03I/O maintenancePreserves the relationship between terminal conductors and program addresses.
04Controlled fault findingAllows input-state checks while the machine remains secured.

Why choose Nordwel

Configuration-aware supportReview complete identity, installation conditions and the required application before quotation.
Fast quotationConfirm pricing, availability and lead time against current Nordwel business records.
Worldwide coordinationSupport destination, freight, packing and shipment-tracking requirements.
Dedicated sales contactWork directly with an assigned contact for pre-order clarification and order follow-up.
Match host scope, input polarity and address assignment before commissioning the added signals.
Need help matching 6ES7221-1BH22-0XA0 to your installation?CONTACT SALES
Need a hard-to-find industrial spare?Send the complete model, manufacturer, quantity and equipment nameplate. Nordwel will cross-check the exact brand, revision, electrical interface and mechanical configuration before quotation.
CROSS-BRAND MODEL SUPPORT

Industrial Spare Parts Reference

Selected legacy and specialist models for motion, sensing, pneumatic and control-system applications.

Motion & DrivesBLS3-4 BLS3Legacy servo/control unit; confirm the full BLS3 designation.
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Sensors & MeasurementSFET-F500-L-W18-B-K1Configured industrial sensor assembly; verify the full option string.
Pneumatic & ProcessTZ2LE024PGVAB 074308Configured valve component; confirm coil voltage and port options.
Control, Power & Communication6ES59417UA12Siemens S5 module reference; confirm the installed rack function.
Motion & DrivesMDX60A0110503400 8226857SEW-EURODRIVE MOVIDRIVE inverter reference.
Sensors & MeasurementPTP35A2A13P1PH4AConfigured process-instrument reference; verify range and output.
Control, Power & CommunicationHITACHI 33016136-5Hitachi industrial control spare; confirm the host equipment family.
Pneumatic & ProcessNUMATICS 34203626Numatics pneumatic component; verify valve and coil configuration.
Sensors & MeasurementHBM WA/20mm 050310129 090610052HBM displacement transducer with 20 mm measurement reference.
Pneumatic & ProcessFESTO 184518 DPA-63-10Festo twin-piston pneumatic pressure booster.
Control, Power & CommunicationH920Legacy industrial control spare; nameplate confirmation required.
Sensors & MeasurementPN3093ifm electronic pressure sensor with digital display.
Control, Power & CommunicationK2001000100MConfigured cable or assembly reference; confirm the equipment family.
Control, Power & CommunicationPCD3W800Saia PCD3 analog I/O module reference.
Motion & Drives49/F2-10 P 80 B14 B3Configured motor and gearbox assembly reference.
Sensors & MeasurementUB40012GME5V1Pepperl+Fuchs UB400 ultrasonic sensor.
Control, Power & CommunicationDFR713PLegacy electronic control spare; confirm manufacturer and revision.
Sensors & MeasurementPT/EL-DR-5BAR-S1-HA-TH-SS5 bar pressure-instrument reference; verify materials and output.
Sensors & MeasurementUDS3/200MB/4/20/G1/4E/FConfigured pressure sensor/transmitter reference.
Motion & DrivesVRDM397/50LWBBerger Lahr stepper motor reference.
Pneumatic & ProcessMPPES31410420Festo proportional pressure regulator reference.
Control, Power & Communication6GK57980SN000EA0Siemens industrial communication accessory; verify installed function.
Sensors & MeasurementWTT280L-2P2531SICK PowerProx time-of-flight photoelectric sensor.
Pneumatic & ProcessMSQB20H2SMC compact rotary table/actuator reference.
Pneumatic & ProcessMSQB30H3SMC compact rotary table/actuator reference.
Control, Power & CommunicationMCRSLUI0Phoenix Contact analog signal conditioner reference.
Motion & Drives6FX11422BA02Siemens drive/CNC electronic module reference.
No exact Nordwel product pages were found for this reference list. Final supply must be confirmed from the manufacturer nameplate, complete ordering code and installed-system context.
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