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PRODUCT DESCRIPTION
6ES7217-1AG40-0XB0 combines logic, differential signals and Ethernet
Siemens 6ES7217-1AG40-0XB0 is the SIMATIC S7-1200 CPU 1217C DC/DC/DC. Its onboard I/O includes ten 24 V digital inputs, four differential digital inputs, six 24 V digital outputs, four differential digital outputs, two voltage inputs and two current outputs. Two Ethernet ports share one integrated PROFINET interface.
The Siemens datasheet dated August 2026 specifies 250 KB of working memory and describes firmware V4.7 with STEP 7 V20 or higher. Match the delivered hardware and firmware to the saved project before replacement. Differential terminals, analog connections and ordinary 24 V I/O have different electrical requirements.
The Siemens datasheet dated August 2026 specifies 250 KB of working memory and describes firmware V4.7 with STEP 7 V20 or higher. Match the delivered hardware and firmware to the saved project before replacement. Differential terminals, analog connections and ordinary 24 V I/O have different electrical requirements.
BEFORE YOU BUY
Match the controller and installed project
ACTUAL APPLICATIONS
6ES7217-1AG40-0XB0 connects machine signals and supervisory data
The CPU 1217C system manual provides differential encoder and motor-drive connection examples. The current exact-model datasheet also documents licensed OPC UA server access for supervisory integration.
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01 · ENCODER FEEDBACK
Receive differential encoder signals
Connect a compatible external encoder to the documented differential input circuit. Verify the receiver common-mode limits, built-in termination and shielded twisted-pair wiring before using the signal in the configured machine function. -
02 · DRIVE COMMANDS
Interface with a differential drive receiver
Use the CPU differential outputs with a compatible motor-drive receiver as shown in the Siemens application example. Match the driver and receiver references and signal requirements; do not wire these terminals as ordinary 24 V load outputs. -
03 · SUPERVISORY DATA
Expose selected data through OPC UA
Use the supported OPC UA server to provide configured data access to a supervisory client. Check the Basic runtime license, firmware, user authentication and security settings, then validate the intended read, write or subscription behavior.
Technical specifications for 6ES7217-1AG40-0XB0
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Product Model6ES7217-1AG40-0XB0
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Product ParametersCompact Programmable Logic Controller
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In stock1 unit
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ManufacturerSiemens
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CPU electrical variantDC/DC/DC
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CPU supply range20.4 to 28.8 V DC
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24 V digital inputs10 onboard channels
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Differential digital inputs4 RS-422/485 channels
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24 V digital outputs6 onboard channels; 0.5 A rated
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Differential digital outputs4 RS-422/485 channels
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Analog voltage inputs2 onboard channels; 0 to 10 V DC
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Analog current outputs2 onboard channels; 0 to 20 mA
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PROFINET port arrangement2 ports on one interface; integrated switch
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Integrated work memory250 KB; current Siemens datasheet
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Integrated load memory4 MB
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Signal-module capacityMaximum 8 SM modules
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Communication-module capacityMaximum 3 CM modules
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Backplane power capacityMaximum 1600 mA at 5 V DC
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Engineering requirementSTEP 7 V20 or higher for firmware V4.7
View all additional
Alternative Names
6ES7217-1AG40-0XB0
Siemens CPU 1217C DC/DC/DC
SIMATIC S7-1200 CPU 1217C
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
CPU 1217C SIGNAL ARCHITECTURE
Separate interface counts from electrical signal groups
The CPU combines 24 V discrete I/O, differential I/O, two voltage inputs and two current outputs. Identify each terminal group in the Siemens wiring table before reusing an existing harness.
Two RJ45 ports belong to one PROFINET interface with an integrated switch. Plan the network and supported communication functions for the actual firmware and project target.
The current datasheet describes V4.7 and STEP 7 V20 or higher. Check installed firmware, project compatibility and any OPC UA runtime license before releasing the system.
Features:
- One PROFINET interface with two ports
- Separate differential and ordinary 24 V wiring
- Verify firmware, project and runtime licenses
The Siemens 6ES7217-1AG40-0XB0 requires terminal groups, network settings and the engineered project to be checked during system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Match the complete 6ES7217-1AG40-0XB0 article number and CPU firmware to the saved hardware configuration. Do not replace the CPU solely because another S7-1200 controller has a similar housing.
Back up the project and retain network identities, security settings and license records. Identify the differential, analog and 24 V wiring before removing the original controller.
After a controlled replacement, check the project target and the electrical connections. Validate the configured machine sequence, analog values, differential interfaces and supervisory communications before return to production.
Features:
- Match CPU firmware and engineering version
- Preserve project, network and license records
- Test all configured signal groups
The Siemens 6ES7217-1AG40-0XB0 CPU 1217C requires replacement verification of firmware, project compatibility, terminal groups and the complete machine function before commissioning.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: The technical extracts use the current Siemens exact-model datasheet. Installation diagrams are identified CPU 1217C pages from the S7-1200 system manual; check the full manual applicable to the delivered firmware.
Features:
- Available Siemens document references are confirmed before order
- Check the actual firmware against the engineering project
- Accessories are supplied only when listed in the quotation
Documentation for the Siemens 6ES7217-1AG40-0XB0 must be checked against the delivered firmware and application; confirm manual availability in the written quotation.
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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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Packed size11.30 × 15.90 × 8.80 cm
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Shipping weightApprox. 0.53 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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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
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Tracking supplied
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Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 6ES7217-1AG40-0XB0
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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Are the two Ethernet sockets two independently configured PROFINET interfaces?
No. Siemens specifies one PROFINET interface with two ports and an integrated switch. Plan the network around that interface arrangement, not as two unrelated network adapters. -
Why does a current CPU datasheet show 250 KB when an older project record shows less memory?
The current exact-model datasheet describes firmware V4.7 and 250 KB of work memory. Earlier engineering documentation can describe an older device version. Verify the actual CPU firmware and project target instead of assuming every stored spare has the current specification. -
Can the four differential outputs drive ordinary 24 V loads directly?
Do not treat them as the six 24 V transistor outputs. The differential channels use an RS-422/485 electrical interface intended for a compatible receiver, such as the motor-drive example in the system manual. Check signal levels, common-mode limits and the receiver wiring. -
Does OPC UA data access work without a runtime license?
The current Siemens datasheet requires the Basic runtime license for the OPC UA server. Confirm the license and supported firmware before commissioning; an available Ethernet port does not establish the required entitlement. -
Which connector detail matters when reconnecting the onboard analog channels?
The CPU 1217C wiring table specifies gold connectors for X12. Preserve the terminal identification and connect the analog voltage inputs and current outputs to their correct references. The manual also instructs shorting unused analog inputs. -
Does MRP support make this CPU suitable for S2 system redundancy?
No. The current datasheet lists MRP media redundancy but explicitly lists S2 and R1 PROFINET system redundancy as unavailable. Network-path recovery and controller-system redundancy are different functions. -
How should an integrator budget expansion modules before adding a signal board?
The published hardware limit is eight signal modules, three communication modules and one expansion board. Check both the device-count limits and the available bus and sensor power; fitting the maximum number physically does not prove the electrical budget is acceptable. -
Can all onboard points remain active at the highest permitted cabinet temperature?
Not without applying the published restrictions. Siemens reduces the permitted simultaneously active points at 60 degrees C horizontal or 50 degrees C vertical. Check the exact temperature and point-loading table for the installed orientation before approving the cabinet design.
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