SIMATIC S5-155U
Legacy fail-safe PLC processor module
Siemens SIMATIC S5
CPU 947 F processor for installed S5-155U programmable controller systems and controlled spare-part replacement.
Siemens 6ES5947-3UA22 is identified in the official Siemens catalog as the SIMATIC S5 CPU 947 F for the S5-155U PLC platform. It is relevant to maintenance and spare-part planning for installed systems that retain this exact processor article number.
Because the product is discontinued, a replacement request should begin with the full CPU label, rack and module context, program-storage arrangement and the site-approved maintenance strategy. A visually similar S5 CPU is not sufficient evidence of interchangeability.
| Item | Verified Detail |
|---|---|
| Manufacturer | Siemens |
| Article number | 6ES5947-3UA22 |
| Official designation | SIMATIC S5, CPU 947 F, S5-155U PLC |
| Lifecycle | PM500: Discontinued Product or end of PLM & Support |
| Lifecycle effective date | End of product lifecycle since 01.04.2004 |
| Availability note | Product is no longer available from the standard catalog |
| Country of origin | GERMANY |
| Technical Item | Official Data |
|---|---|
| Automation platform | SIMATIC S5 |
| Controller family | S5-155U PLC |
| Processor designation | CPU 947 F |
| Module role | Central processing unit |
| Official article number | 6ES5947-3UA22 |
| Net weight | 0.615 kg |
| Packaging quantity | 1 piece |
| EAN | 4019169027724 |
| Export control | ECCN N / AL N |
| Catalog reference | ST9-E5 |
Use current photographs to verify the processor label, front controls and complete module condition before a legacy-system inquiry.
| Application | Engineering Relevance |
|---|---|
| Installed S5-155U maintenance | Supports controlled spare planning for systems documented with CPU 947 F. |
| Legacy fail-safe automation | Relevant where the approved plant design retains this exact F-CPU article number. |
| Shutdown spare preparation | Label and system records help distinguish a true replacement from a migration requirement. |
| Modernization assessment | The existing CPU, I/O, program media and safety documentation define the migration scope. |
Confirm 6ES5947-3UA22, CPU 947 F and any visible hardware or revision identifiers.
Record rack type, neighboring modules, power supply and backplane arrangement.
Confirm program media, backups, validation documents and the approved change process.
A successor platform requires engineering, testing and safety approval; it is not a drop-in substitution.
PM500: Discontinued Product or end of PLM & Support. Siemens lists the end of product lifecycle as 01.04.2004 and states that the product is no longer available.
It is the SIMATIC S5 CPU 947 F central processor for the S5-155U PLC platform.
No. Siemens lists it as PM500: Discontinued Product or end of PLM & Support.
No. CPU type, rack, program, interfaces and safety documentation must match the approved system.
Provide the complete label, rack context, hardware identifiers, program-media details, quantity and destination.
Send the complete part number, quantity, destination and current nameplate photographs for an exact review.
Email: sales6@apterpower.com | WhatsApp: +86 181 5988 9985
Service for 6ES5947-3UA22
A controlled service path for S5 processor identity, installed-rack context, program records and protected dispatch.
| Step | Control Point | Review Scope |
|---|---|---|
| 01 | Requirement capture | Record CPU label, rack, neighboring modules, program media, quantity and destination. |
| 02 | Identity evidence | Compare CPU 947 F markings, complete 6ES5947-3UA22 code and front controls. |
| 03 | System alignment | Review S5-155U rack context, backups, safety documentation and maintenance scope. |
| 04 | Dispatch record | Document module condition, backplane protection, packing and shipping handover. |
Confirms CPU 947 F markings and the complete Siemens order code.
Records LEDs, controls, connectors and cover condition.
Shows backplane protection, cushioning and dispatch labeling.
| Record | Purpose |
|---|---|
| Exact-order-code photo | Confirms 6ES5947-3UA22 and separates other S5 CPU variants. |
| Rack-context evidence | Shows the installed position, neighboring modules and power arrangement. |
| Program and revision notes | Supports maintenance or migration review without assuming interchangeability. |
| Packing and label record | Provides traceable evidence before international dispatch. |
Availability, condition, legacy-system context and destination are reviewed before the commercial offer.
Warranty terms are stated on the quotation and matched to the offered condition and legacy-product scope.
Send the complete part number, quantity, destination and current nameplate photographs for an exact review.
Email: sales6@apterpower.com | WhatsApp: +86 181 5988 9985
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Send the complete part number, quantity, destination and current nameplate photographs for an exact review.
Email: sales6@apterpower.com | WhatsApp: +86 181 5988 9985
