Ask our team:
  • Phone: +86 181 0690 9650
  • E-Mail sales1@apterpower.com
  • Lifecycle status

    Active / Available from OEM
    Apter Power verifies catalog identity, memory records, official documents, quotation scope, and shipment readiness.

1775-MED

/ 4.9
1001 reviews | Need a Specific Revision?
Allen-Bradley 1775-MED provides the 131,072-word PLC-3 memory option for applications whose complete program and controller data exceed lower-capacity modules.
In Stock
Ships by Wednesday, October 28
Fast Shipping Available
Get a quick price for 1775-MED
Quantity
*E-mail
Company
*Mobile
*Content
Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)

Technical specifications for 1775-MED

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1775-MED
  • Product Family:
    PLC-3
  • Product Type:
    128K PLC-3 Memory Module
  • Stock:
    1
  • Memory Capacity:
    128K or 131,072 words
  • Installation Location:
    PLC-3 processor chassis
  • Memory Use:
    PLC-3 program and data storage
  • Dimensions:
    4.6 × 30 × 39.5 cm
  • Compatible Processor Chassis:
    1775-A1, 1775-A2, and 1775-A3
  • Memory Word Length:
    16 bits
  • System Status Area:
    Fixed 22 words
  • Weight:
    3.1 kg
  • Tariff Code:
    8538900000
  • 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 Capacity Control Backup Completeness Restoration Control Application
  • Preserve the complete PLC-3 memory image rather than relying on a program-only backup
  • Include data areas, procedures, program contexts, and message storage in the restoration plan
  • Verify retained-data behavior and the restored machine sequence before returning to production

1775-MED supplies the documented 131,072-word memory option for a PLC-3 processor chassis.

Its larger capacity can hold extensive data areas, procedures, program contexts, and messages that may not exist in a program-only backup.

Replacement acceptance should confirm the complete restored memory image and all retained-data behavior before the controller returns to production.

Availability, condition, price, and shipping time for 1775-MED are confirmed during quotation.

Allen-Bradley 1775-MED 128K 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 official PLC-3 reference assigns 128K or 131,072 words to 1775-MED.
  • The installed memory use should be measured before any lower-capacity alternative is considered.
  • Large data areas, procedures, messages, and program contexts all contribute to required capacity.
  • A program-only copy may not preserve every item stored in a large PLC-3 memory image.
  • Procedures, symbols, messages, retained data, and the memory map should be included and verified.
  • The backup identifier should be tied to the correct controller and machine revision.
  • Confirm the MED catalog and processor-chassis position before installation.
  • Restore the validated full application and examine memory and processor diagnostics.
  • Prove all contexts, procedures, and retained-data behavior before production release.
  • PLC-3 applications whose complete program and controller data require the 131,072-word capacity of 1775-MED
  • Restoration projects that must preserve a verified high-capacity memory image together with its data tables, messages, procedures, and status records
  • Capacity-controlled PLC-3 service where 1775-MED must be matched to the documented processor chassis and validated backup before startup
Description
Allen-Bradley 1775-MED is a PLC-3 processor-chassis memory module providing 128K or 131,072 words of program and data storage.

With 131,072 documented words, this catalog is the highest-capacity memory module listed in the official PLC-3 reference alongside the MEA, ME8, and ME4 choices.

Replacement control should confirm that the installed controller actually uses MED capacity, then preserve every program context, large data area, message set, symbol table, and procedure before power is removed.
Alternative Names
1775-MED Allen-Bradley 1775-MED Allen Bradley 1775-MED PLC-3 1775-MED 1775-MED PLC-3 Memory Module PLC-3 Memory Module 1775-MED
Technical notes
1775-MED replacement requires the exact PLC-3 memory catalog, 128K or 131,072 words capacity, compatible processor chassis, and a verified complete application backup; physical fit alone does not establish memory compatibility.
Exceptional Service

Our Mission

  • 100% Satisfaction

    We believe expertise is priceless. With over 20 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.
  • Trust Guaranteed

    Not only do we have a vast inventory, our team makes sure every piece of equipment is in working condition. Your purchases are also backed by our Warranty.
  • Expertise

    Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.

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.
Which records demonstrate that an installed PLC-3 application requires Allen-Bradley 1775-MED capacity?
Use the installed module nameplate, controller memory report, documented memory map, verified full backup, and records of large data areas, procedures, messages, and program contexts.
What application data is most important to preserve before replacing Allen-Bradley 1775-MED?
Preserve every program context, expanded data table, procedure, symbol, message, and any production data retained in the controller memory.
Can Allen-Bradley 1775-MED be downgraded to a lower-capacity PLC-3 memory module?
Not without proving that the entire application and its operating data fit the smaller capacity and completing an engineering review.
Why can an incomplete backup be especially risky with Allen-Bradley 1775-MED?
Large PLC-3 applications may use extensive data, procedures, or messages that a partial program-only backup does not preserve.
What should be checked before energizing a replacement Allen-Bradley 1775-MED?
Verify the MED catalog, processor-chassis position, connector seating, complete backup identity, memory map, and power-isolation procedure.
How should Allen-Bradley 1775-MED be commissioned after restoration?
Check memory diagnostics, confirm the full 128K map, validate each program context and procedure, and prove retained-data behavior under controlled conditions.
Why should Allen-Bradley 1775-MED commissioning include retained-data checks as well as program execution?
A controller can execute logic while restored data tables, messages, procedures, or retained production values remain incomplete, so those memory areas must be validated separately.