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PRODUCT DESCRIPTION
6ES7211-0AA20-0XB0 CPU 221 compact PLC
The Siemens 6ES7211-0AA20-0XB0 is a CPU 221 compact controller from the SIMATIC S7-200 family. It combines a small user program, onboard 24 volt digital inputs and transistor outputs, and an RS-485 communication port in a self-contained unit for basic machine and equipment automation.
High-speed counting and pulse generation extend the controller beyond conventional relay sequencing, allowing it to handle compact speed, length and positioning functions. The fixed I/O format suits established installations whose control requirements fit the onboard points and whose programs depend on the original S7-200 hardware generation.
High-speed counting and pulse generation extend the controller beyond conventional relay sequencing, allowing it to handle compact speed, length and positioning functions. The fixed I/O format suits established installations whose control requirements fit the onboard points and whose programs depend on the original S7-200 hardware generation.
BEFORE YOU BUY
Confirm the complete CPU 221 compact PLC
ACTUAL APPLICATIONS
Application fields for 6ES7211-0AA20-0XB0
6ES7211-0AA20-0XB0 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 · INDUSTRIAL MANUFACTURING
Industrial Manufacturing and Continuous Production
Discrete manufacturing and assembly productionContinuous industrial production operations -
02 · COMMERCIAL BUILDINGS
Commercial and Institutional Building Operations
Commercial property operationsInstitutional facility services -
03 · LOGISTICS & WAREHOUSING
Distribution, Warehousing and Material Flow Services
Warehouse and distribution-centre operationsIndustrial material-flow services
Technical specifications for 6ES7211-0AA20-0XB0
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Product Model6ES7211-0AA20-0XB0
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Product ParametersCPU 221 compact PLC
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In stock1 unit
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ManufacturerSiemens
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System familySIMATIC S7-200
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CPU designationCPU 221
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Supply voltage24 V DC
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Digital inputs6
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Digital outputs4 transistor outputs
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Output characteristic24 V DC source output
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Program memory2 KB
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Data memory1 KB
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Communication portOne RS-485 port
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Supported protocolPPI and freeport
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Expansion capacityFixed onboard I/O configuration
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High-speed counters4
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Pulse outputs2
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Controller typeCompact programmable controller
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Lifecycle contextLegacy S7-200 CPU
View all additional
Alternative Names
Siemens CPU 221 compact PLC
SIMATIC S7-200
CPU 221 compact PLC for 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 6ES7211-0AA20-0XB0 CPU 221 compact PLC
Install 6ES7211-0AA20-0XB0 as the documented CPU 221 compact PLC within the SIMATIC S7-200 architecture. The manufacturer data defines its station role, compatible hardware and electrical interface, so the surrounding carrier, backplane, supply and field connections must correspond to that documented arrangement.
Plan the integration around 24 V DC, 6, 4 transistor outputs. Keep signal commons, cable routing, shielding and protective-earth practice consistent with the applicable system manual, and assign the module or accessory to the correct hardware position in the controller or drive project.
Commission the assembly in a controlled operating state. Confirm supply conditions first, then inspect hardware diagnostics and communications before exercising the connected channels or functions through their intended working range. Retain the final project, wiring and test records with the equipment documentation.
Features:
- Exact identity: 6ES7211-0AA20-0XB0
- Documented SIMATIC S7-200 integration
- Controlled commissioning and recorded results
6ES7211-0AA20-0XB0 requires documented system integration before energising the installation.
INTERCHANGEABILITY
Verify 6ES7211-0AA20-0XB0 before replacement
Treat 6ES7211-0AA20-0XB0 as the exact replacement identity for this SIMATIC S7-200 function. A similar enclosure or related family code does not confirm equivalent channel behavior, firmware, terminal assignment, licensing or mechanical compatibility.
Before removal, record the installed position and the documented characteristics that affect this unit, including CPU 221, 24 V DC, 6. Capture connector orientation, cable labels, configuration values, network settings and the diagnostic state needed to restore the original installation.
After fitting the replacement, restore the approved configuration and compare all status indications with the saved baseline. Prove the affected inputs, outputs, communications or power paths individually, and complete any manufacturer-required functional or safety validation before returning the machine or process to normal service.
Features:
- Match 6ES7211-0AA20-0XB0 exactly
- Preserve hardware, wiring and configuration records
- Validate every affected function after installation
6ES7211-0AA20-0XB0 requires replacement verification against the installed hardware and configuration.
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 6ES7211-0AA20-0XB0 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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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 size9.0 × 8.0 × 6.2 cm
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Net weight0.27 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 reference8537101190
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OriginGermany
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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
Antistatic protection -
Tracking supplied
Established couriers -
Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 6ES7211-0AA20-0XB0
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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What is 6ES7211-0AA20-0XB0?
6ES7211-0AA20-0XB0 is a CPU 221 compact PLC for the SIMATIC S7-200. -
Which identity must be used when ordering 6ES7211-0AA20-0XB0?
Use the complete 6ES7211-0AA20-0XB0 marking and compare it with the installed label and project records. -
Can a similar family item replace 6ES7211-0AA20-0XB0?
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 6ES7211-0AA20-0XB0?
Record the installed position, connections, cable labels, settings and diagnostic state. -
What should be inspected when 6ES7211-0AA20-0XB0 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 6ES7211-0AA20-0XB0 quote with price, lead time and revision check.
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Disclaimer: Amikon Limited sells new and surplus products and develops channels for purchasing such products. Amikon Limited is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Amikon Limited is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. Amikon Limited is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
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