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Technical specifications for 6ES5946-3UA23
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Manufacturer:Siemens
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Product Category:PLC Systems
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Spare Part Number:6ES5946-3UA23
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Estimated shipping dimensions:4.1x20.3x25.6cm
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Weight:0.98 kg
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Tariff Code:8537101190
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Counliy of origin:Germany
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Product family:SIMATIC S5
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Processor type:CPU 946 F
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Controller system:S5-155U
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Programming environment:STEP 5
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Module role:Central processing unit
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Lifecycle:Discontinued product
Information
Overview
Manuals
Common Applications
Product Precautions
Siemens 6ES5946-3UA23 provides the CPU 946 F processing function for a documented S5-155U controller configuration.
- Identified by Siemens as a SIMATIC S5 CPU 946 F central processing unit.
- Assigned to the S5-155U programmable-controller platform.
- Executes the stored STEP 5 user program and controller operating functions.
- Interfaces with the S5 rack, memory and I/O resources used by the installed controller.
The cpu module serves a defined role in its documented SIMATIC system. Match the rack, interfaces, configuration and program safeguards before the controlled system returns to service.
Important Notice: Verify the complete Siemens 6ES5946-3UA23 marking, system position, connector arrangement and controlled configuration before installation.
Siemens 6ES5946-3UA23 Manuals & Downloads
Siemens 6ES5946-3UA23 Technical Reference (PDF)Siemens 6ES5946-3UA23 Installation & Commissioning Guide (PDF)
The Technical Reference covers the product function, system role and technical selection. The installation guide covers identification, connection checks, commissioning and the acceptance record.
Legacy machine control
Run the existing STEP 5 control program in a maintained S5-155U rack.
Process sequencing
Coordinate deterministic logic, interlocks and output decisions in the installed controller.
Plant maintenance
Restore the documented processor position without changing the approved application program.
System recovery
Return the controller to its recorded startup state after an exact-article replacement.
Before installing Siemens 6ES5946-3UA23, confirm the documented system, interfaces and controlled configuration.
1
Confirm the complete 6ES5946-3UA23 article number and CPU 946 F designation before removing the installed CPU.
2
Verify that the host controller is the documented S5-155U platform.
3
Back up the STEP 5 user program, hardware configuration and operating parameters.
4
Record rack slot, switch positions, memory media and interface connections.
5
Remove power and follow site electrostatic-discharge controls before handling the module.
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Do not transfer memory media until the required CPU state and site procedure are confirmed.
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Check startup indicators, controller mode and I/O communication after installation.
8
Validate interlocks and the controlled machine sequence before returning outputs to service.
Technical notes
Verify the complete Siemens 6ES5946-3UA23 marking, system position, connector arrangement and controlled configuration before installation.
FAQ View All FAQ
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What processor type is Siemens 6ES5946-3UA23?It is the Siemens SIMATIC S5 CPU 946 F central processing unit.
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Which controller platform uses Siemens 6ES5946-3UA23?Siemens assigns it to the S5-155U programmable-controller system.
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Which programming environment applies to Siemens 6ES5946-3UA23?The controller application uses the SIMATIC STEP 5 environment.
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What should be backed up before replacing Siemens 6ES5946-3UA23?Back up the user program, hardware configuration and operating parameters.
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Which physical details must be recorded before removing Siemens 6ES5946-3UA23?Record the rack slot, switch positions, memory media and every connected interface.
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What verifies Siemens 6ES5946-3UA23 after startup?Confirm CPU status, operating mode, I/O communication, interlocks and the controlled sequence.
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Which installation records should accompany Siemens 6ES5946-3UA23?Record the complete article number, cpu module position, connections, controlled settings and functional test result.
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When can Siemens 6ES5946-3UA23 return to service?Return it to service only after diagnostics, communication, interlocks and the intended system response meet the approved acceptance criteria.
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