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 /Siemens 6ES5943-7UB21 SIMATIC S5 CPU 943 Central Processing Unit
Siemens 6ES5943-7UB21
Siemens 6ES5943-7UB21
Siemens 6ES5943-7UB21

Siemens 6ES5943-7UB21 SIMATIC S5 CPU 943 Central Processing Unit

Siemens SIMATIC S5 · CPU 943

6ES5943-7UB21

The 6ES5943-7UB21 is a Siemens SIMATIC S5 CPU 943 central processing unit for S5-115U. Siemens identifies this spare-part article as the two-slot CPU 943 version.

PRODUCT TYPECPU 943
SYSTEMS5-115U
MODULE FORMATTWO SLOTS
NET WEIGHT0.794 KG
MANUFACTURERSiemens
CONDITION / WARRANTYOriginal New · One-Year Warranty
ISO CERTIFICATIONISO-Certified Product
VERIFICATION● Product photos and videos provided after inquiry
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SIEMENS ● SIEMENS SIMATIC S5 · CPU 943
Siemens SIMATIC S5

6ES5943-7UB21

CPU 943 · S5-115U · two-slot central unit

CPU 943 · S5-115U · two-slot central unit

PRODUCT ROLE
6ES5943-7UB21 is the Siemens SIMATIC S5 CPU 943 central processing unit for S5-115U with two slots, as listed on the exact manufacturer product page.
TECHNICAL CONTEXT
For 6ES5943-7UB21, Siemens identifies this exact article as a CPU 943 central processing unit for S5-115U. Its two-slot format is part of the product description; match the complete order number and installed rack before replacement.
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MANUFACTURER-REFERENCE CHARACTERISTICS

Technical Specifications

Contact Frida for documentation ↗
SIMATIC S5 CPU 943

Engineering data at a glance

Click “+” to expand more specifications.

PRODUCT TYPECPU 943
SYSTEMS5-115U
MODULE FORMATTWO SLOTS
NET WEIGHT0.794 KG
Siemens SiePortal, exact 6ES5943-7UB21 product record.
CONFIGURATION MATCH6ES5943-7UB21 is the CPU 943 central processing unit for the SIMATIC S5-115U system. Confirm the full article number and two-slot format against the installed station.
General Information −
BrandSiemens
Part number6ES5943-7UB21
Product typeCPU 943 central processing unit
Product familySIMATIC S5
Installed systemS5-115U
Module Configuration ＋
CPU designationCPU 943
Module formatTwo slots
System roleCentral processing unit
Physical and Lifecycle Data ＋
Packaging dimensions (L x W x H)30.8 x 21.5 x 5.3 cm
Net weight0.794 kg
Product lifecycleEnd of product lifecycle
Source: Siemens SiePortal exact 6ES5943-7UB21 product description.
FAQ

Questions Buyers Ask Most

What is the role of 6ES5943-7UB21 in an S5-115U station?＋

Siemens identifies 6ES5943-7UB21 as a CPU 943 central processing unit for the SIMATIC S5-115U system. Check the installed central unit and complete article number before using it as a replacement.

Does 6ES5943-7UB21 occupy two slots?＋

The exact Siemens description lists 6ES5943-7UB21 as a CPU 943 central unit with two slots. Confirm that the physical rack space and connector arrangement in the installed S5-115U station match.

Is 6ES5943-7UB21 an I/O module or a processor?＋

6ES5943-7UB21 is a central processing unit, not a digital or analog I/O card. Its role is to run the S5-115U control system; I/O modules are selected separately.

Which controller family is specified for 6ES5943-7UB21?＋

Siemens lists 6ES5943-7UB21 for the SIMATIC S5-115U. Do not assume compatibility with other S5 rack families merely because their module numbers look similar.

What should be checked before replacing 6ES5943-7UB21?＋

For 6ES5943-7UB21, compare the complete Siemens article number, CPU 943 designation, two-slot format, installed S5-115U station, and module nameplate. Preserve the existing controller configuration during replacement planning.

Is 6ES5943-7UB21 still in the current Siemens product lifecycle?＋

The exact Siemens SiePortal record marks 6ES5943-7UB21 at end of product lifecycle. Verify current sourcing and service options separately; the lifecycle label does not establish compatibility with a different CPU.

What details should accompany an order inquiry for 6ES5943-7UB21?＋

Provide the complete 6ES5943-7UB21 article number, quantity, S5-115U station identification, rack layout and clear nameplate photos. These details help confirm that the requested CPU 943 variant matches the installed system.

CONTACT PRODUCT SPECIALIST

Check your configuration with Frida

Share the complete Siemens 6ES5943-7UB21 article number, installed S5-115U station, rack layout, module nameplate and quantity for configuration checking.

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DATA SHEET

Product Information for
6ES5943-7UB21

Product information and support route for the exact Siemens article number 6ES5943-7UB21.

Official manufacturer record

Siemens SiePortal identifies 6ES5943-7UB21 as a CPU 943 central processing unit for S5-115U with two slots. No exact manufacturer-hosted datasheet PDF was verified.

CONTACT FRIDA FOR DOCUMENTATION

Contact to Get Support

Send the complete model, quantity, and your technical or purchasing question.

Siemens SiePortal exact 6ES5943-7UB21 product page.

MODEL IDENTIFICATION

Exact Siemens reference for 6ES5943-7UB21

6ES5943-7UB21 is the complete Siemens article number for a CPU 943 central processing unit for S5-115U with two slots.

Siemens · BRAND
Siemens SIMATIC S5CPU 943 Central Processing Module
EXACT ARTICLE NUMBER

6ES5943-7UB21

Match the complete 6ES5943-7UB21 article number to the documented S5-115U central-unit and two-slot configuration.

Product identification: Siemens SIMATIC S5 CPU 943 central processing unit for S5-115U with two slots, article number 6ES5943-7UB21.
APPLICATION AREAS

Application functions for 6ES5943-7UB21

Central ControlCPU 943 processing in a SIMATIC S5-115U station
SIMATIC S5 SystemsCentral-unit service in installed S5-115U systems
INDUSTRIAL AUTOMATION APPLICATIONS 6ES5943-7UB21 SIMATIC S5 · CPU 943 Central Processing
Machine AutomationExecution of control functions in an S5-115U controller
I/O CoordinationCentral processing alongside configured S5-115U I/O
ABOUT MOORE AUTOMATION

A trusted industrial automation sourcing partner

Moore Automation Limited supplies industrial automation spare parts to customers worldwide, with dedicated sourcing, part-number verification, pre-shipment confirmation and responsive sales support.

Global sourcing Pre-shipment verification One-year warranty
SERVICE

Industrial Automation Order Support

A clear workflow for sourcing, verification, shipment preparation, delivery and product assurance.

STAGESERVICE ACTIONWHAT WE CHECK OR PROVIDE
01PROCUREMENT
Product SourcingCurrent, hard-to-find and discontinued industrial automation parts.
02VERIFICATION
Part Number ReviewComplete model, suffix, nameplate, visible revision and application details.
03CONFIRMATION
Pre-Shipment CheckModel, label, condition and packaging confirmed with actual photos or video.
04FULFILLMENT
Global Delivery
Worldwide delivery with flexible shipping options. We support door-to-door pickup or delivery to your nominated freight forwarder in China.
DHLFedExUPSTNT
05ASSURANCE
One-Year WarrantyOne-year warranty from delivery for products supplied by Moore Automation.
Warranty Claim Information＋
What to provide: If a product-related issue occurs within the warranty period, contact our team and submit one clear, continuous video for review.
✓Complete product and nameplate
✓Power supply and wiring connections
✓Installation and operating conditions
✓Indicator lights, alarms or error messages
✓Clear description of the fault
✓Continuous video showing the issue
Review outcome: If the evidence confirms a covered product fault, Moore Automation will arrange the appropriate warranty solution.
SALES ASSISTANCE

Contact Sales Manager Frida

Include the complete part number, quantity and delivery destination.

EMAILsales5@mooreplc.com WHATSAPP+86 153 5940 8275
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HEISSE TAGS : 6ES5943-7UB21 Siemens 6ES5943-7UB21 6ES5943-7UB21 CPU 943 Central Processing Unit Siemens 6ES5943-7UB21 Supplier 6ES5943-7UB21 Price Buy Siemens 6ES5943-7UB21
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Thema : Siemens 6ES5943-7UB21 SIMATIC S5 CPU 943 Central Processing Unit
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