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Siemens SIMATIC S5-155U

6ES5948-3UA23

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The Siemens 6ES5948-3UA23 is cPU 948 central processing unit for the SIMATIC S5-155U with 1664 KB internal RAM.

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Siemens 6ES5948-3UA23 · CPU 948B

Technical Specifications

SIMATIC S5-135U / S5-155U System Manual C79000-G8576-C199-07.

01Product IdentitySiemens system manual

ManufacturerSiemens

Order Number6ES5948-3UA23

CPU TypeCPU 948B-2

Controller FamilySIMATIC S5-155U

02Electrical DataSiemens C79000-G8576-C199-07

Degree of ProtectionIP00

Supply Voltage 15 V ±5%

Supply Voltage 224 V +25% / −17%

Current Consumption1.5 A typical

03Memory & ResourcesSiemens C79000-G8576-C199-07

Internal User RAM1664 KB

Flags2048

S Flags32768

Timers / Counters256 / 256

04Interface & MechanicalSiemens C79000-G8576-C199-07

PG Interface Rate9600 bit/s

Optional InterfaceV.24 / TTY / RS422A/485

Dimensions (W × H × D)20.32 × 233.4 × 160 mm

WeightApprox. 0.6 kg

Siemens 6ES5948-3UA23 Product Support

Frequently Asked Questions

S5-155U compatibility, memory, interfaces, multiprocessor configuration, migration and ordering guidance for 6ES5948-3UA23.

Which SIMATIC rack family accepts this CPU 948B-2?

6ES5948-3UA23 is documented for the SIMATIC S5-155U central controller and supports single-CPU or multiprocessor operation in the compatible central rack.

How much internal memory is available for the S5 program?

The CPU 948B-2 provides 1,664 KB internal RAM; external program storage uses the compatible Memory Card 374 with Flash EPROM.

Which supply rails and current demand must be checked?

The module uses the S5 rack supplies specified as 5 V ±5% and 24 V +25%/−17%, with approximately 1.5 A typical current demand from the 5 V rail.

How is a programming device connected for commissioning?

The integrated SI1 PG interface is a 15-pin serial interface operating at 9,600 bit/s. Use the correct Siemens cable and online settings for the S5 CPU.

Which communication options can be added at the second interface?

SI2 accepts the designated plug-in interface module for V.24, TTY, RS422A/485 or SINEC L1/PG functions, depending on the installed submodule.

How should a multiprocessor replacement be prepared?

Back up the program and memory card, record rack slot and CPU coordination settings, verify all partner CPUs, then compare online blocks and startup diagnostics after replacement.

Which identification data are needed for an S5 migration review?

Provide 6ES5948-3UA23, CPU 948B-2 label, rack type, memory-card reference, SI2 submodule, STEP 5 backup status, multiprocessor layout and quantity.

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Product Preparation

The item reference is checked before dispatch. Packaging is selected to protect industrial components during international transport.

International Shipping

Shipment can be arranged through DHL, FedEx or UPS according to the destination, parcel size and confirmed order requirements.

Dispatch and Tracking

Dispatch information and the available tracking reference are shared after the shipment has been collected by the selected carrier.

AMIKON Service Standards

Support at Every Stage of Your Order

Clear assistance from initial product identification through dispatch and after-sales communication.

Product IdentificationThe manufacturer, complete model and part-number details are reviewed before quotation.

Dedicated Sales ContactLisa Lin provides quotation and order communication through email and WhatsApp.

Order DocumentationCommercial, packing and shipment details are supplied according to the confirmed order.

After-Sales CommunicationFor support, provide the order reference, product label, fault description and clear photos.

Pre-Dispatch VerificationThe product label, model reference, quantity and visible condition are checked against the confirmed order before packing.

Global Logistics CoordinationInternational express or freight arrangements are coordinated according to the destination, shipment size and confirmed delivery terms.

Important delivery information

Product availability, dispatch date, freight cost and delivery time depend on the confirmed order and destination. Packing lists, commercial invoices and available origin documentation can be prepared according to the confirmed order. Please contact AMIKON for current commercial and shipping details.

AMIKON Professional Services

Warranty, Sourcing and Global Export Support

With 20 years of experience in industrial automation, AMIKON supplies discontinued and hard-to-find DCS, PLC and TSI spare parts to customers worldwide.

01 · WARRANTY

12-Month Product Warranty

Products supplied by AMIKON include a standard 12-month warranty. Warranty handling is based on the confirmed order, product label, fault information and supporting photos or videos.

02 · SPECIALIST SOURCING

Discontinued and Hard-to-Find Parts

Our sourcing service focuses on industrial automation DCS, PLC and TSI spare parts, including obsolete, discontinued and scarce models required for maintenance and replacement projects.

03 · GLOBAL EXPORT LOGISTICS

One-Stop International Shipping

AMIKON can coordinate domestic export customs procedures and arrange international express or sea freight. Packing lists, commercial invoices and available origin documentation can be prepared according to the confirmed order.

04 · TECHNICAL INFORMATION

Model and Specification Support

We assist customers with model identification, specification review, compatibility checks and Datasheet or manual searches. Support also includes distinguishing earlier and later model versions and checking whether a submitted model reference is complete and correctly written.

05 · PRE-DISPATCH CHECK

Product Verification Before Shipment

The product label, complete model, part number, quantity and visible condition are reviewed against the confirmed order before packing.

06 · INDUSTRIAL PACKAGING

Secure Packing for International Transit

Packaging is selected according to the component type, shipment size and transport method to support safe international handling.

07 · ORDER DOCUMENTATION

Commercial and Shipping Documents

Commercial invoices, packing lists and available origin information can be prepared according to the confirmed order and destination requirements.

08 · AFTER-SALES SUPPORT

Responsive Order Follow-Up

For order support, customers can provide the order reference, product label, issue description and clear photos for review by the AMIKON team.

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Hot Tags : 6ES5948-3UA23 Siemens 6ES5948-3UA23 SIMATIC S5 CPU 948 Central Processing Unit SIMATIC S5-155U 6ES5948-3UA23 supplier 6ES5948-3UA23 datasheet

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Siemens 6ES5948-3UA23 SIMATIC S5-155U CPU 948 1664 KB

6ES5948-3UA23

20 Years of Experience in Industrial Automation Supply

6ES5948-3UA23

Technical Specifications

Frequently Asked Questions

Which SIMATIC rack family accepts this CPU 948B-2?

How much internal memory is available for the S5 program?

Which supply rails and current demand must be checked?

How is a programming device connected for commissioning?

Which communication options can be added at the second interface?

How should a multiprocessor replacement be prepared?

Which identification data are needed for an S5 migration review?

Payment and Worldwide Delivery

Order Confirmation

Product Preparation

International Shipping

Dispatch and Tracking

Support at Every Stage of Your Order

Warranty, Sourcing and Global Export Support

12-Month Product Warranty

Discontinued and Hard-to-Find Parts

One-Stop International Shipping

Model and Specification Support

Product Verification Before Shipment

Secure Packing for International Transit

Commercial and Shipping Documents

Responsive Order Follow-Up

Recommended Industrial Models

Related Products