Siemens 6ES5948-3UA13 SIMATIC S5 CPU 948

Siemens 6ES5948-3UA13 640 KB central processor for S5-155U automation systems

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Siemens 6ES5948-3UA13 SIMATIC S5 CPU 948

SIMATIC S5 CPU 948 central processing unit with 640 KB RAM for S5-155U systems.

Product Overview

Siemens 6ES5948-3UA13 is a SIMATIC S5 CPU 948 central processing unit specified with 640 KB of internal user RAM for S5-155U automation systems. Siemens system documentation also describes the CPU 948 architecture for single-processor and multiprocessor operation in S5-135U and S5-155U central units, with Memory Card 374 available as external program and data storage. The processor supports cyclic, time-controlled and interrupt-driven program execution. Procurement review should verify the complete order code, memory card, serial and programming interfaces, rack position, installed STEP 5 program, communication settings and readable product label before replacement.

Commercial Status

Commercial Item	Status
Product Condition	Original new
Availability	In stock
Official Lifecycle	PM500: Discontinued Product or end of PLM & Support
Warranty	With 1 year warranty
Shipping	Worldwide shipping options available

Condition, availability and warranty are Stockoems commercial information, not manufacturer commitments.

Verified Technical Data

Field	Verified Information
Manufacturer	Siemens
Complete Part Number	6ES5948-3UA13
Product Type	SIMATIC S5 CPU 948 Central Processing Unit
Designated System	S5-155U
Internal User Memory	640 KB RAM
External Memory Medium	Memory Card 374 for program and user data
Operating Architecture	Single-processor and multiprocessor operation documented for S5-135U/155U central units
Program Execution	Cyclic, time-controlled, interrupt-driven and soft-stop processing
Front Interfaces	15-pin programming device interface; serial interfaces SI1 and SI2
Module Format	Double Europe format
Front Width	20 mm, equal to 1 1/3 standard mounting positions
Rack Requirement	One slot in the central-unit rack
Net Weight	0.465 kg
Packaging Dimensions	21.30 x 26.70 x 3.40 cm
Country of Origin	Germany

Product Photo Evidence

System Fit and Applications

Application Area	Procurement Guidance
Control platform	SIMATIC S5-155U central automation systems; Siemens documentation also covers CPU 948 use in S5-135U/155U central units.
System role	Executes the installed STEP 5 control program and coordinates configured S5 modules and interfaces.
Typical use	Maintenance of legacy machine and process-control installations based on the CPU 948 architecture.
Replacement purpose	Restoration of an existing CPU position using the exact order code and verified project backup.
Configuration importance	Memory card, rack assignment, program version, interface settings and connected modules must match the installed system.

Compatibility and Procurement Checks

Before purchasing or replacing this exact item, review the configuration evidence that affects installation and system operation:

Complete part number and 3UA13 suffix
CPU 948 hardware identification and rack position
Memory Card 374 type and installed contents
STEP 5 program and data backup
Programming and serial interface assignments
Single-processor or multiprocessor configuration
Power supply, connected modules and communication settings
Readable nameplate, connector and packaging photographs

Lifecycle Note

Siemens lists 6ES5948-3UA13 as PM500: Discontinued Product or end of PLM & Support, effective since 1 October 2022. The official page states that the product was deleted without replacement. This does not establish compatibility with another CPU; verify the exact hardware, memory card, STEP 5 program, rack arrangement and interface configuration before maintenance or replacement.

Frequently Asked Questions

What does 6ES5948-3UA13 identify?

It identifies a Siemens SIMATIC S5 CPU 948 central processing unit specified with 640 KB of internal user RAM.

Which automation system is specified for this CPU?

The Siemens product page identifies it as a central processing unit for S5-155U. The CPU 948 system documentation also describes operation in S5-135U/155U central units.

Which external memory medium is documented?

Siemens documentation identifies Memory Card 374 as the external medium for programs and user data.

Which processing modes are supported?

The CPU 948 documentation describes cyclic, time-controlled, interrupt-driven and soft-stop program processing.

What is the official lifecycle status?

Siemens lists the exact order code as PM500: Discontinued Product or end of PLM & Support, effective since 1 October 2022.

What should be reviewed before replacement?

Verify the complete suffix, hardware, Memory Card 374, STEP 5 backup, rack position, serial and programming interfaces, connected modules and multiprocessor arrangement where applicable.

Request Availability and Compatibility Review

Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.

Email: sales6@apterpower.com WhatsApp: +86 18159889985

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Industrial Automation Procurement Service

Structured verification, inspection, documentation and delivery support for 6ES5948-3UA13.

Service Workflow

Our workflow begins with complete model and suffix verification against the purchase request and available product label. We review condition, interface details and technical compatibility points before commercial confirmation. Where inspection evidence is available, the team checks product views, nameplates, connector areas, packaging and visible accessories. Technical documentation is compared with the requested system position so that hardware identification, memory card contents, STEP 5 backup, rack assignment and interface configuration are clearly recorded without promising automatic interchangeability.

Service Stage	What Stockoems Checks
1. Identification	Complete order code, suffix, product label and visible revision details are compared.
2. Condition confirmation	Condition, included items, seals and visible handling marks are reviewed from available evidence.
3. Technical review	The exact CPU suffix, Memory Card 374, STEP 5 program backup, rack position, serial interfaces, connected modules and single- or multiprocessor arrangement are compared.
4. Photo confirmation	Product, nameplate, connector and packaging photographs can be coordinated before shipment.
5. Protective packaging	Antistatic and impact-protective materials are selected for the module or unit.
6. Logistics support	Worldwide shipping, shipment tracking and customs-document preparation are coordinated.
7. Commercial records	Written warranty terms and the return authorization process are documented before order completion.
8. After-sales response	Questions about received condition, documentation and installation evidence are handled through a traceable service channel.

Inspection and Documentation Support

Our team coordinates label review, technical-document comparison, packaging preparation, logistics records and after-sales communication. We do not promise unverified quantities or fixed delivery dates. Commercial timing is confirmed only after the exact product, required quantity, destination and inspection scope have been reviewed.

Automation procurement team reviewing technical documentation

Office specialists coordinating industrial product inspection

Stockoems staff preparing procurement and shipping records

Supplier Qualification FAQ

How can an end user identify a qualified industrial automation source?

Look for complete legal and commercial details, model-specific technical communication, inspection evidence, written warranty terms, a defined return authorization process and traceable after-sales contacts.

Which documents, labels and commercial terms should procurement verify?

Review the quotation, complete order code, nameplate photos, condition statement, included accessories, warranty scope, shipping terms, customs documents and return conditions before approval.

How should engineers confirm model, firmware, interfaces and compatibility?

Compare 6ES5948-3UA13, visible revision or firmware details, Memory Card 374, STEP 5 program, rack assignment, serial interfaces and multiprocessor configuration, installation position and the current project documentation. Compatibility should be reviewed for the exact installed configuration.

What are common risk signals when selecting a source?

Incomplete order codes, refusal to provide readable nameplate images, conflicting parameters, unclear condition descriptions, unsupported compatibility claims and inability to explain warranty or return authorization are important warning signs.

Request Procurement and Service Support

Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.

Email: sales6@apterpower.com WhatsApp: +86 18159889985

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Request Recommended Model Support

Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.

Email: sales6@apterpower.com WhatsApp: +86 18159889985

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