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PRODUCT DESCRIPTION
6ES7221-1BH22-0XA0 EM 221 sixteen-channel digital input module
Siemens 6ES7221-1BH22-0XA0 is an EM 221 digital input expansion module for SIMATIC S7-200 CPU 22x controllers. It expands the controller with additional discrete field-signal channels. The manufacturer data further identifies the system family as SIMATIC S7-200, the module designation as EM 221, the module type as Digital input expansion, the digital inputs as 16, the input voltage as 24 V DC, the input wiring as Sink/source, and the compatible controllers as S7-200 CPU 22x.
The module provides sixteen 24 V DC sink/source digital inputs. The input channels extend the CPU process image for switches, sensors and other compatible binary field devices. The remaining technical data identifies the signal direction as Field to controller, the signal type as Binary DC input, the process data as Sixteen input bits, the controller interface as S7-200 expansion bus, the channel function as Discrete state acquisition, the station role as Digital input expansion, the power domain as 24 V DC, and the application class as Compact PLC input.
The module provides sixteen 24 V DC sink/source digital inputs. The input channels extend the CPU process image for switches, sensors and other compatible binary field devices. The remaining technical data identifies the signal direction as Field to controller, the signal type as Binary DC input, the process data as Sixteen input bits, the controller interface as S7-200 expansion bus, the channel function as Discrete state acquisition, the station role as Digital input expansion, the power domain as 24 V DC, and the application class as Compact PLC input.
BEFORE YOU BUY
Confirm the complete EM 221 sixteen-channel digital input module
ACTUAL APPLICATIONS
Application fields for 6ES7221-1BH22-0XA0
6ES7221-1BH22-0XA0 is used across compatible installations in the following broad industrial application fields, subject to verified system design and operating requirements.
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01 · TRANSPORT INFRASTRUCTURE
Rail, Airport and Public Transport Infrastructure
Rail and metro infrastructure servicesAirport and public transport operations -
02 · LOGISTICS & WAREHOUSING
Distribution, Warehousing and Material Flow Services
Warehouse and distribution-centre operationsIndustrial material-flow services -
03 · INDUSTRIAL MANUFACTURING
Industrial Manufacturing and Continuous Production
Discrete manufacturing and assembly productionContinuous industrial production operations
Technical specifications for 6ES7221-1BH22-0XA0
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Product Model6ES7221-1BH22-0XA0
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Product ParametersEM 221 sixteen-channel digital input module
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In stock1 unit
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ManufacturerSiemens
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System familySIMATIC S7-200
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Module designationEM 221
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Module typeDigital input expansion
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Digital inputs16
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Input voltage24 V DC
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Input wiringSink/source
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Compatible controllersS7-200 CPU 22x
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Signal directionField to controller
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Signal typeBinary DC input
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Process dataSixteen input bits
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Controller interfaceS7-200 expansion bus
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Channel functionDiscrete state acquisition
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Station roleDigital input expansion
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Power domain24 V DC
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Application classCompact PLC input
View all additional
Alternative Names
Siemens EM 221 sixteen-channel digital input module
SIMATIC S7-200
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
SYSTEM INTEGRATION
Integrate 6ES7221-1BH22-0XA0 EM 221 sixteen-channel digital input module
Use 6ES7221-1BH22-0XA0 within the documented SIMATIC S7-200 automation architecture and assign it to the hardware position intended for its EM 221 sixteen-channel digital input module function. The controller project and physical station should use the same module identity and system structure.
Coordinate the rack or distributed I/O position with the controller address map, process image and diagnostic handling. Field wiring should follow the manufacturer terminal conventions, with signal references, grounding and shielding arranged consistently with the surrounding modules.
Complete the hardware configuration in the engineering project and review the station diagnostics before enabling the affected process functions. Retain the final module assignment, connection records and controller configuration as part of the system documentation.
Features:
- Exact model: 6ES7221-1BH22-0XA0
- Compatible system: SIMATIC S7-200
- Intended role: EM 221 sixteen-channel digital input module
6ES7221-1BH22-0XA0 should be integrated within the documented SIMATIC S7-200 system architecture and retained in the approved project records.
INTERCHANGEABILITY
Check 6ES7221-1BH22-0XA0 technical compatibility
Use the complete 6ES7221-1BH22-0XA0 order identity when evaluating interchangeability within the SIMATIC S7-200 system. Similar appearance or a shared family name does not establish compatibility with the installed hardware and engineering project.
Record the installed position, connector orientation, field wiring, address assignment, communication settings and application configuration before removing the existing unit. Preserve cable labels, shielding arrangements and diagnostic records needed to reproduce the documented system state.
After fitting the selected unit, restore the approved configuration and review controller or device diagnostics before enabling the affected function. Confirm the connected signals and controlled response through the established commissioning procedure, then update the maintenance record.
Features:
- Complete identity: 6ES7221-1BH22-0XA0
- System compatibility: SIMATIC S7-200
- Configuration and connection records retained
Interchangeability for 6ES7221-1BH22-0XA0 depends on the complete order identity and the documented electrical, signal and platform characteristics.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: The linked files are Amikong-hosted reference documents. Match their product identity and scope to the supplied assembly, and consult the applicable manufacturer instructions before use. Accessories and additional documents are included only when expressly listed in the quotation.
Features:
- Match documents to the complete product identity
- Use the applicable manufacturer family instructions
- Additional documents are supplied only when quoted
Documentation for 6ES7221-1BH22-0XA0 must be checked against the installed configuration before service.
Also searched as
Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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01
Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Product size7.12 × 8.0 × 6.2 cm
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Net weight0.160 kg
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8538909100
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OriginChina
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
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Tracking supplied
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Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 6ES7221-1BH22-0XA0
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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What is 6ES7221-1BH22-0XA0?
6ES7221-1BH22-0XA0 is a EM 221 sixteen-channel digital input module for the SIMATIC S7-200. -
Which identity must be used when ordering 6ES7221-1BH22-0XA0?
Use the complete 6ES7221-1BH22-0XA0 marking and compare it with the installed label and project records. -
Can a similar family item replace 6ES7221-1BH22-0XA0?
Do not confirm substitution from a family name or similar appearance. Verify the complete code, interfaces, revision and approved configuration. -
What should be recorded before removing 6ES7221-1BH22-0XA0?
Record the installed position, connections, cable labels, settings and diagnostic state. -
What should be inspected when 6ES7221-1BH22-0XA0 arrives?
Inspect the label, housing, connectors, terminals and packaging for correct identity and condition. -
Which checks follow installation?
Restore the approved configuration and complete controlled power-up, diagnostic and functional tests. -
What information should accompany a quotation?
Provide the complete model, quantity, clear label photographs, destination and required delivery date. -
Which documentation applies?
Use the manufacturer documentation for SIMATIC S7-200 and confirm that its scope covers the installed configuration.
READY TO VERIFY YOUR PART?
Get a 6ES7221-1BH22-0XA0 quote with price, lead time and revision check.
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