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1775-MEF

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Allen-Bradley 1775-MEF is a PLC-3 processor-chassis memory module with documented track-and-latch installation and thumbwheel-based sequencing.
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Technical specifications for 1775-MEF

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1775-MEF
  • Product Family:
    PLC-3
  • Product Type:
    PLC-3 Memory Module
  • Stock:
    1
  • Chassis Context:
    PLC-3 processor chassis
  • Insertion Guides:
    Upper and lower plastic tracks
  • Mechanical Retention:
    Chassis latch
  • Single-Module Thumbwheel:
    1
  • Multi-Module Thumbwheels:
    Consecutive, starting at 1
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    USA
  • 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 System Boundary Chassis Handling Sequence Record Product Applications

Features:

  • Documented PLC-3 memory-module identity
  • Guided processor-chassis installation
  • Thumbwheel position in the memory set
Allen-Bradley 1775-MEF is identified in official PLC-3 component documentation as processor-chassis memory hardware.

Upper and lower plastic tracks guide the board into the chassis, and the latch retains it after seating.

Its thumbwheel links the board to the ordered memory sequence recorded for the installed controller.

Apter Power can support 1775-MEF enquiries with catalog-label review, official PLC-3 literature, quotation coordination, and condition checks.
1775-MEF PLC-3 Memory Module Manuals, Datasheets, Links 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.
  • The exact catalog is listed in the official PLC-3 memory-module group.
  • PLC-3/10 uses a separate 1775-MS memory family and should not be inferred from a similar number.
  • The board provides chassis memory while the processor and scanners remain separate modules.
  • Remove processor-chassis power before the memory board is inserted or removed.
  • Align the board with both plastic guide tracks instead of forcing the card edge.
  • Secure the chassis latch before the system is returned to service.
  • Use position 1 when the installation contains one memory module.
  • Keep positions consecutive from 1 when several memory boards are installed.
  • Preserve the photographed order because no capacity value should be inferred from a neighboring catalog.
  • Provides memory hardware within a documented Allen-Bradley PLC-3 processor chassis.
  • Operates beside the separate PLC-3 processor and I/O-scanner resources.
  • Participates in recorded single-board or consecutive multi-board memory arrangements.
Description
Rockwell Automation lists 1775-MEF as a memory module for the Allen-Bradley PLC-3 processor chassis. The exact catalog belongs to the PLC-3 memory group, separate from the 1775-MS modules documented for PLC-3/10 systems and separate from the processor and scanner hardware.

Because the collected official material does not assign a numerical capacity to 1775-MEF, selection should stay anchored to the full board label and the existing PLC-3 memory sequence. Power is removed before handling, the board follows the chassis guide tracks, and its thumbwheel position is restored from the pre-service record.
Alternative Names
Allen-Bradley 1775 MEF Memory Board Rockwell 1775MEF PLC-3 Module PLC-3 MEF Processor-Chassis Memory
Technical notes
Controller-family identity is the decisive boundary for 1775-MEF. Rockwell lists it with PLC-3 memory modules, while PLC-3/10 uses the separate 1775-MS group; match the complete board label to a documented PLC-3 installation, keep numerical capacity unassigned, and stop the job if the chassis record or memory sequence is unclear.
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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.
Can 1775-MEF be selected for a controller documented as PLC-3/10?
Do not select it from catalog similarity. The official component list places it in the PLC-3 memory group and identifies a separate 1775-MS group for PLC-3/10.
What should I do if 1775-MEF will not slide evenly into the chassis?
Stop rather than forcing it. With power isolated, inspect the upper and lower plastic tracks, correct the alignment, and make sure the latch can secure the seated board.
Can I assign a memory capacity to 1775-MEF from a nearby 1775-ME catalog?
No. Rockwell documentation confirms the PLC-3 memory role but does not state a numerical capacity for this exact catalog. Leave capacity blank until exact manufacturer evidence is available.
How should the thumbwheel position of 1775-MEF be restored after service?
Use the pre-outage photograph and memory record. A single module starts at position 1, while a multi-board set remains consecutive from 1.
Why should the chassis latch be checked after fitting 1775-MEF?
The latch retains the memory board after guided insertion. Keep power isolated until the module is fully seated and the latch closes correctly.
What details should accompany an enquiry for 1775-MEF?
Provide the complete catalog label, PLC-3 chassis identity, present thumbwheel sequence, and clear photographs of the board and connector. Do not add an unsupported capacity or substitution request.

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