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6ES7416-2FN05-0AB0

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Built as a SIMATIC S7-400 fail-safe central processing unit, Siemens 6ES7416-2FN05-0AB0 runs standard and safety programs while coordinating MPI and PROFIBUS DP networks.
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Technical specifications for 6ES7416-2FN05-0AB0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7416-2FN05-0AB0
  • Product Family:
    Siemens Simatic S7-400
  • Product Type:
    CPU 416F-2 Fail-Safe Central Processing Unit
  • Stock:
    1
  • Hardware Functional Status:
    03
  • Firmware Version:
    V5.3
  • Work Memory:
    5.6 MB
  • Code Memory:
    2.8 MB
  • Data Memory:
    2.8 MB
  • First Interface:
    MPI/PROFIBUS DP, 12 Mbit/s
  • Second Interface:
    PROFIBUS DP
  • Engineering Software:
    STEP 7 V5.3 SP2 or higher with hardware update
  • Safety Software:
    Distributed Safety V5.2 SP2 or higher
  • Isochronous Mode:
    PROFIBUS only
  • Required Rack Slots:
    1
  • Weight:
    1.9423 lbs (0.881 kg)
  • Estimated shipping dimensions:
    30.1x23.3x3.8cm
  • Tariff Code:
    85371091
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Safety Program Memory Layout Bus Interfaces Diagnostics

Features:

  • CPU 416F-2 executes both standard and configured fail-safe program sections in the S7-400 station.
  • Work memory is divided into separate 2.8 MB code and 2.8 MB data areas.
  • One MPI/DP interface and one additional PROFIBUS DP interface provide two configurable RS-485 paths.
The system power supply feeds the processor through the S7-400 backplane, keeping rack power separate from interface supply outputs.

Program blocks, data blocks and process images use the configured memory areas during cyclic execution.

Hardware status, firmware level and Distributed Safety version must agree with the project before safety logic is loaded.

The Siemens 6ES7416-2FN05-0AB0 SIMATIC S7-400 CPU 416F-2 Fail-Safe Central Processing Unit may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7416-2FN05-0AB0 SIMATIC S7-400 CPU 416F-2 Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

How standard and fail-safe logic coexist

  • Program sections: Standard and safety program blocks run on the same CPU under the configured Distributed Safety project.
  • Version match: The hardware status, firmware and engineering software must match the supported safety configuration.
  • Consistency check: A detected safety-program inconsistency drives the CPU to STOP and creates diagnostic information.
  • Restart boundary: Safety behavior follows the documented CPU operating-mode rules rather than an assumed automatic recovery.

Separating executable code from process data

  • Code area: 2.8 MB of work memory holds the active program instructions and block logic.
  • Data area: Another 2.8 MB holds data blocks and runtime values used by the program.
  • Load memory: Supported Flash or RAM memory cards extend load memory without changing the fixed split work-memory areas.
  • Retentive content: Backup arrangements determine which RAM data is preserved when rack power is removed.

Assigning the two RS-485 paths

  • First connector: The combined MPI/PROFIBUS DP interface can serve engineering access or a configured DP role.
  • Second connector: The additional PROFIBUS DP interface provides a separate fieldbus segment.
  • Master data: Each configured DP master exchanges input and output areas with its assigned slaves.
  • Isochronous mode: Time-coordinated operation is supported for PROFIBUS, not as a generic feature of every communication path.

Tracing controller and bus conditions

  • Diagnostic buffer: CPU events are recorded with the controller state and related organization-block response.
  • Interface faults: Each bus path reports its configured participant and communication conditions separately.
  • Safety report: Safety consistency faults are recorded before the processor remains in STOP.
  • Online access: STEP 7 status and diagnostic functions use the engineering interface selected in the station project.
Description
Siemens 6ES7416-2FN05-0AB0 is the SIMATIC S7-400 CPU 416F-2 fail-safe central processing unit. It runs the configured standard and safety program while coordinating rack resources and distributed PROFIBUS stations.

Work memory in 6ES7416-2FN05-0AB0 is divided evenly between program code and process data. This separation lets the processor execute logic while maintaining the data areas, timers, counters and blocks defined by the project.

Two RS-485 paths organize communication on 6ES7416-2FN05-0AB0: the first can operate as MPI or PROFIBUS DP, and the second provides another PROFIBUS DP interface. The project assigns each bus role, participant address and data area.

Safety engineering for 6ES7416-2FN05-0AB0 uses the documented STEP 7 and Distributed Safety releases for its hardware and firmware level. A detected inconsistency in the safety program places the CPU in STOP and records diagnostic information instead of continuing with an unverified safety configuration.
Alternative Names
6ES74162FN050AB0 6ES7 416-2FN05-0AB0 6ES7 416 2FN05 0AB0 Siemens 6ES7416-2FN05-0AB0 CPU 416F-2 SIMATIC S7-400 6ES7416-2FN05-0AB0 6ES7416-2FN05-0AB0 Fail-Safe CPU 6ES74I6-2FN05-0AB0
Technical notes
Siemens 6ES7416-2FN05-0AB0 uses 5.6 MB split work memory, an MPI/DP interface and a second PROFIBUS DP interface. Its safety project requires the documented Distributed Safety release.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why must the firmware and engineering software be checked before loading 6ES7416-2FN05-0AB0?
The 6ES7416-2FN05-0AB0 safety configuration depends on its hardware status, firmware V5.3 and the documented STEP 7 and Distributed Safety versions.
How is the 5.6 MB work memory of 6ES7416-2FN05-0AB0 divided?
The 6ES7416-2FN05-0AB0 assigns 2.8 MB to code and 2.8 MB to data, so program growth and runtime-data growth use separate areas.
What happens if 6ES7416-2FN05-0AB0 detects an inconsistent safety program?
The 6ES7416-2FN05-0AB0 changes to STOP and records diagnostic information rather than running the inconsistent safety configuration.
Can the two communication connectors on 6ES7416-2FN05-0AB0 be treated as identical MPI ports?
No. The first 6ES7416-2FN05-0AB0 interface supports MPI or PROFIBUS DP, while the second is a dedicated PROFIBUS DP path.
What should be checked before moving a memory card to another 6ES7416-2FN05-0AB0?
Confirm the 6ES7416-2FN05-0AB0 hardware status, firmware, project version, memory-card type and safety-program consistency before transferring the card.