6ES7312-5BF04-0AB0
6ES7312-5BF04-0AB0
6ES7312-5BF04-0AB0
6ES7312-5BF04-0AB0
6ES7312-5BF04-0AB0
6ES7312-5BF04-0AB0
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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power supports documented 6ES7312-5BF04-0AB0 legacy replacement enquiries.

6ES7312-5BF04-0AB0

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Siemens 6ES7312-5BF04-0AB0 is a discontinued SIMATIC S7-300 CPU 312C with MPI, integrated 10 DI/6 DO and two 10 kHz counters.
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Technical specifications for 6ES7312-5BF04-0AB0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7312-5BF04-0AB0
  • Product Family:
    Siemens Simatic S7-300
  • Product Type:
    SIMATIC S7-300 CPU 312C
  • Stock:
    1
  • Automation Platform:
    SIMATIC S7-300
  • CPU Type:
    CPU 312C compact
  • Work Memory:
    64 KB
  • Communication Interface:
    MPI
  • Integrated Digital Inputs:
    10
  • Integrated Digital Outputs:
    6
  • Integrated Counters:
    2 at 10 kHz
  • Supply Voltage:
    24 VDC
  • Required Load Memory:
    SIMATIC Micro Memory Card
  • Front Connector:
    One 40-pole connector required
  • Weight:
    0.458 kg
  • Estimated shipping dimensions:
    15.30 x 13.10 x 8.90 cm
  • 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 Project Recovery Hardware Planning Commissioning Product Applications

Features:

  • Compact CPU: Processor and integrated digital I/O share one S7-300 module.
  • Built-in counting: Two 10 kHz counters support documented machine functions without separate counter hardware.
  • Accessory-dependent service: Memory card, front connector and STEP 7 project must be available for a complete replacement.
The CPU serves legacy compact S7-300 machines that use MPI communications and integrated I/O in a single controller position.

Its 64 KB work memory and fixed onboard channel set define project and wiring compatibility for replacement.

A successful changeout proves startup media, program integrity, communications, counters, I/O and safety interlocks under controlled conditions.

Apter Power can help confirm the Siemens 6ES7312-5BF04-0AB0 SIMATIC S7-300 CPU 312C and documented accessory scope before quotation.
Siemens 6ES7312-5BF04-0AB0 SIMATIC S7-300 CPU 312C 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.
  • STEP 7 source: Secure the latest verified project and compare it with the installed machine revision.
  • Memory media: Identify the compatible Micro Memory Card and preserve its contents before changeout.
  • MPI record: Document node address, baud rate and connected devices on the operating network.
  • Startup behavior: Record warm restart, retentive data and fault-recovery requirements.
  • Front connector: Confirm the required 40-pole connector and preserve terminal identification.
  • I/O mapping: Match ten inputs and six outputs to the original project and wiring drawings.
  • Counter circuits: Record the two high-speed counter signals and reference conditions.
  • Power isolation: De-energize field and controller supplies before removing the wired connector.
  • Controlled download: Inhibit hazardous outputs while loading the verified project.
  • Diagnostic review: Resolve CPU, memory, bus and I/O indications before enabling equipment.
  • Counter proof: Verify input frequency, count direction and process scaling with safe test signals.
  • Rollback plan: Retain the original CPU, card and project evidence until acceptance is complete.
  • Compact machine control: Runs S7-300 logic with integrated digital I/O.
  • Counting tasks: Acquires two documented high-speed pulse channels up to 10 kHz.
  • MPI networks: Exchanges engineering and control data with compatible legacy devices.
  • Legacy CPU support: Maintains installed machinery while a controlled migration is prepared.
Description
6ES7312-5BF04-0AB0 is a compact SIMATIC S7-300 CPU 312C with 64 KB work memory and an integrated MPI interface.

6ES7312-5BF04-0AB0 includes ten digital inputs, six digital outputs and two 10 kHz counters for localized machine control.

6ES7312-5BF04-0AB0 requires a compatible Micro Memory Card and a 40-pole front connector, so these supporting items and the STEP 7 project must be verified separately.
Alternative Names
6ES7312-5BF04-0AB0 6ES73125BF040AB0 6ES7 312-5BF04-0AB0
Technical notes
6ES7312-5BF04-0AB0 is in Siemens product phase-out, making the verified STEP 7 project, Micro Memory Card and firmware record essential service evidence. Isolate outputs, document MPI addressing and integrated I/O wiring, verify the 40-pole front connector, and test startup, counters, diagnostics and every controlled function before production 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.
A spare 6ES7312-5BF04-0AB0 is available without a memory card. Can the machine start?
The official configuration requires a compatible SIMATIC Micro Memory Card, and the verified project must also be available.
What should be captured from 6ES7312-5BF04-0AB0 before removing the installed CPU?
Preserve the STEP 7 project, memory-card content, MPI settings, diagnostics, retentive-data expectations and complete integrated-I/O wiring record.
A replacement 6ES7312-5BF04-0AB0 enters fault after project download. Where should diagnosis begin?
Compare hardware configuration, memory card, firmware, MPI network, front-connector seating and field-power state with the original installation.
Can the two counters in 6ES7312-5BF04-0AB0 be accepted by observing normal digital inputs?
No. Apply controlled pulse signals and verify count direction, frequency, scaling and the dependent machine logic.
Why must outputs remain inhibited during 6ES7312-5BF04-0AB0 commissioning?
A project or wiring mismatch can energize the wrong channel, so each output and interlock must be proved safely first.
Is a newer S7 controller a direct drop-in replacement for 6ES7312-5BF04-0AB0?
No. Project conversion, I/O wiring, communications, memory behavior, dimensions and machine acceptance require an engineered migration.

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