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Siemens SIMATIC S5 CPU 948R 6ES5948-3UR23
Manufacturer: Siemens
Condition: Brand New
Lead Time: In Stock
Origin: Germany
Warranty: 12 Months
Email: [email protected]
whatsApp: +86-18150117685
- Overview
- Product Overview
- Key Functions
- Official Specifications
- Frequently Asked Questions
- Compatibility & Ordering Notes
- Hot Selling Models
- Recommended Products
Overview
SIEMENS • SIMATIC S5-155H
6ES5948-3UR23 SIMATIC S5 CPU 948R
The CPU 948R is a SIMATIC S5 central processing unit for S5-155H redundant controllers with 1,600 KB of RAM and removable SIMATIC Flash EPROM memory-card support.
At a Glance
| Brand | Siemens |
|---|---|
| Model | 6ES5948-3UR23 |
| Product Type | Redundant controller central processing unit |
| Core Function | Executes the user program in an S5-155H high-availability controller |
| Application or Compatible Series | SIMATIC S5-155H redundant automation systems |
Exact Identification
Match 6ES5948-3UR23 character by character and confirm the complete SIMATIC S5 CPU 948R designation.
Interface Arrangement
Confirm the installed supply, ports, field connections and required accessories before wiring the replacement.
Configuration Check
Preserve the approved engineering project, network parameters and application data used by the installed system.
Product Overview
The CPU 948R is a SIMATIC S5 central processing unit for S5-155H redundant controllers with 1,600 KB of RAM and removable SIMATIC Flash EPROM memory-card support.
The processor runs the controller program and system functions used in the high-availability S5-155H architecture. The exact catalog variant provides 1,600 KB of RAM for the installed automation program and process data. Supported SIMATIC Flash EPROM cards load their contents into internal RAM following an overall reset.
Key Functions
S5-155H Redundant Processing
The processor runs the controller program and system functions used in the high-availability S5-155H architecture.
Integrated User Memory
The exact catalog variant provides 1,600 KB of RAM for the installed automation program and process data.
Removable Program Transfer
Supported SIMATIC Flash EPROM cards load their contents into internal RAM following an overall reset.
Official Specifications
| Processor Designation | CPU 948R |
|---|---|
| Controller Platform | SIMATIC S5-155H |
| Installed RAM | 1,600 KB |
| Internal Memory Function | Storage for logic blocks and data blocks |
| Removable Memory Type | SIMATIC Memory Card, Flash EPROM |
| Supported Memory-Card Range | 256 KB to 2 MB |
| Memory-Card Load Sequence | Contents transfer to internal RAM after an overall reset |
| Relative Processing Performance | Three to five times faster than CPU 946R/947R, depending on the instruction mix |
| Cold-Restart Organization Blocks | OB 20, OB 21 and OB 22 |
| Soft-Stop Organization Blocks | OB 38 and OB 39 |
| Runtime-Error Handling | OB 19 |
| I/O Timeout Handling | OB 23 for direct access and OB 24 for process-image updates |
| Addressing-Error Handling | OB 25 |
| Packaging Dimensions | 26.6 x 21.3 x 3.3 cm |
| Net Weight | 0.463 kg |
Frequently Asked Questions
Is 6ES5948-3UR23 intended for a standard S5-155U or an S5-155H system?
The processor is intended for the high-availability S5-155H controller architecture.
How much internal RAM is supplied with 6ES5948-3UR23?
The exact catalog variant is equipped with 1,600 KB of RAM.
Which removable memory technology is supported by 6ES5948-3UR23?
The processor accepts SIMATIC Flash EPROM memory cards from 256 KB to 2 MB.
How is a program transferred from the memory card in 6ES5948-3UR23?
An overall reset loads the card contents into the integrated user RAM.
Which blocks manage cold restart on 6ES5948-3UR23?
OB 20, OB 21 and OB 22 control the documented cold-restart variants.
Which organization block handles an addressing error on 6ES5948-3UR23?
OB 25 is assigned to addressing-error handling.
What must be synchronized before replacing 6ES5948-3UR23 in a redundant system?
Back up the STEP 5 program and align the partner CPU, memory configuration, interfaces and system software.
Compatibility & Ordering Notes
Compatibility Checklist
- Use only within the documented S5-155H redundant-controller architecture.
- Back up the complete STEP 5 program and system data before removing the installed CPU.
- Match the partner processor, user-memory size, card contents and hardware revision.
