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PRODUCT DESCRIPTION
6ES5941-7UA12 CPU 941 central processing unit
Siemens 6ES5941-7UA12 is a CPU 941 central processing unit documented for SIMATIC S5-115U. It performs its assigned input, processing, operator-interface, control or cooling function through the manufacturer-specified electrical and mechanical interfaces. Verify the complete article identity and installed system configuration before replacement or commissioning.
BEFORE YOU BUY
Confirm the complete CPU 941 central processing unit
ACTUAL APPLICATIONS
Application context for 6ES5941-7UA12
The applications below show typical industry settings, application scenarios, application areas and equipment for 6ES5941-7UA12. Confirm the exact product configuration before use.
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01 · AUTOMOTIVE
Legacy assembly and transfer lines
Production cellsSequence control for transfer stationsInterlocks for tooling and conveyors -
02 · FOOD & BEVERAGE
Batching and packaging equipment
Production areasRecipe-step machine sequencingPackaging line permissive logic -
03 · PULP & PAPER
Stock preparation and finishing lines
Production areasPump and valve sequence controlConveyor and winder interlocks
Technical specifications for 6ES5941-7UA12
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Product Model6ES5941-7UA12
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Product ParametersCPU 941 central processing unit
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In stock1 unit
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ManufacturerSiemens
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CPU DesignationCPU 941
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PLC PlatformSIMATIC S5-115U
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Internal Program Memory2 KB RAM
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Maximum Program Memory18 KB with memory submodule
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Programming Interface20 mA TTY current loop
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Interface Connector15-pin D-sub socket
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Memory SubmoduleMS375 RAM/EPROM/EEPROM slot
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Program ExecutionCyclic, interrupt-driven and time-controlled
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Digital Input Addressing1024 inputs; I 0.0 to I 127.7
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Digital Output Addressing1024 outputs; Q 0.0 to Q 127.7
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Timer Capacity128 timers
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Counter Capacity128 counters
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Timer Range0.01 to 9990 s
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Counter Range0 to 999
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Network LinkSINEC L1 supported
View all additional
Alternative Names
6ES5 941-7UA12
SIMATIC S5 CPU 941
S5-115U central processing unit
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
Match 6ES5941-7UA12 to the installed SIMATIC S5-115U
Siemens 6ES5941-7UA12 is a CPU 941 central processing unit for the SIMATIC S5-115U. Its exact article suffix determines the supported interface, signal or communication function and the approved companion equipment.
Engineering should compare maximum program memory (18 KB with memory submodule), programming interface (20 mA TTY current loop) and interface connector (15-pin D-sub socket) with the installed system design. Confirm connector keying, addressing and configuration-tool support before connection.
Use the manufacturer documentation for the complete wiring and configuration sequence. Validate communication, signal conversion or control response with the connected equipment, then archive measured results and the final configuration with the asset record.
Features:
- Exact identity: 6ES5941-7UA12
- Product class: CPU 941 central processing unit
- Family: SIMATIC S5-115U
The Siemens 6ES5941-7UA12 requires documented system integration before energising the equipment.
REPLACEMENT CONTROL
Verify the complete 6ES5941-7UA12 identity before exchange
Replace 6ES5941-7UA12 only after matching the complete article code, CPU 941 central processing unit, installed SIMATIC S5-115U role and documented hardware or firmware revision. Similar housings and related family numbers do not establish functional interchangeability.
Photograph the nameplate, keyed connectors, terminal numbering, cable routing, shields, earth points and adjacent modules. Export the applicable controller, HMI, drive or network configuration and record addresses, parameters and diagnostic messages before removal.
After fitting the verified article, restore the controlled configuration and check every affected signal or communication path. Review status indications and diagnostic buffers, run the documented functional test at a safe operating point and retain the final acceptance record.
Features:
- Exact identity: 6ES5941-7UA12
- Product class: CPU 941 central processing unit
- Family check: SIMATIC S5-115U
The Siemens 6ES5941-7UA12 requires documented replacement verification before energising the equipment.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software and certificates are included only when listed in the quotation.
Features:
- Technical values prepared for 6ES5941-7UA12
- Siemens SIMATIC S5-115U references reviewed
- Exact Siemens identity required before service
Documentation for Siemens 6ES5941-7UA12 must match the installed equipment; confirm document applicability 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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Packed size31.5 × 21.5 × 5.2 cm
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Shipping weight2.00 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 reference85371091
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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 6ES5941-7UA12
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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How do I verify 6ES5941-7UA12 is the correct CPU 941 for an S5-115U rack?
Check the complete Siemens article number, CPU 941 front label, hardware revision, S5-115U rack position and the installed memory submodule. Do not approve the spare from the CPU 941 family name alone. -
What must maintenance back up before replacing a 6ES5941-7UA12 CPU?
Upload the STEP 5 program, data blocks and system settings, then record the operating-mode switch, connector positions, TTY link, battery status and memory-submodule identity before removing the CPU. -
Which programming cable or adapter is required for the CPU 941 service port?
The documented programming interface is a 20 mA TTY current loop on a 15-pin D-sub socket. Select a Siemens-compatible TTY adapter and confirm electrical pinout and host-driver support before connecting a modern PC. -
Does the 2 KB RAM specification include the optional memory submodule?
No. The 2 KB figure refers to the internal program RAM. Total program capacity can reach 18 KB only when a compatible memory submodule is installed and accepted by the CPU revision. -
Which commissioning checks should follow an S5-115U CPU 941 replacement?
Restore the approved STEP 5 program, confirm the CPU enters RUN without fault indications, test the programming link and verify the affected inputs, outputs, timers, counters and machine interlocks under controlled conditions. -
How can technicians separate a CPU fault from an S5 rack or memory fault?
First verify rack power, backup battery, module seating and connector condition. Then test communication, inspect STOP or fault indications and retry with the approved program and known-compatible memory submodule before condemning the CPU. -
Can 6ES5941-7UB11 replace 6ES5941-7UA12 without engineering changes?
Treat 6ES5941-7UB11 as a successor candidate, not an automatic drop-in replacement. Engineering must compare operating-system revision, memory arrangement, rack compatibility, communication behavior and the saved STEP 5 project. -
What information should a distributor confirm when quoting 6ES5941-7UA12?
The quotation should state the complete article number, hardware revision, condition, installed or included memory submodule, exchange requirement, test status, warranty, quantity and destination. Request nameplate photographs before order approval.
READY TO VERIFY YOUR PART?
Get a 6ES5941-7UA12 quote with price, lead time and revision check.
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