Memory position
PLC-3 memory hardware is separate from processor and scanner positions.
Allen-Bradley · PLC-3 EEPROM memory module
Allen-Bradley 1775-MEF PLC-3 Memory Module
EEPROM memory hardware listed for a PLC-3 controller chassis.
01
System Overview
In the PLC-3 system component list, 1775-MEF is identified as an EEPROM memory module. It occupies the memory role in a PLC-3 assembly, where the controller chassis, power supply, processor, scanner and I/O hardware each have separate positions.
The official PLC-3 quick-start record groups 1775-MEF with the 1775-ME4, 1775-ME8, 1775-MEA and 1775-MED memory-module catalog numbers. That grouping describes a common PLC-3 memory-module category; it does not assign the same capacity or revision characteristics to every catalog number.
The memory module is installed as part of the processor-side PLC-3 hardware arrangement. It is distinct from the 1775-S4A/S4B/S5/SR5/SR scanner-module positions and from the 1771-IE I/O module position listed in the same documented build.
For a configuration record, use the complete 1775-MEF catalog number together with the installed PLC-3 chassis and processor identification. The reviewed quick-start source lists the product family and module function, but does not state a capacity value for this particular catalog number.
02
Configuration Reference
- Brand
- Allen-Bradley
- Product type
- PLC-3 EEPROM memory module
- System family
- PLC-3
- Country of Origin
- Not stated in the reviewed official source
- Related memory group
- 1775-ME4, 1775-ME8, 1775-MEA, 1775-MED, 1775-MEF
- Processor chassis context
- 1775-A1, 1775-A2 or 1775-A4B
- Power supply context
- 1775-P1 or 1775-P3 for PLC-3
- Scanner-module context
- 1775-S4A, S4B, S5, SR5 or SR
- I/O context
- 1771-IE I/O modules
03
PLC-3 Assembly Context
Documented system role
PLC-3 Assembly Context
The source figure is a cropped official PLC-3 system-component record. It places memory modules in the same documented controller build as the power supply, chassis, processor, scanner and I/O components.
The image is an official technical-diagram crop with non-diagram page furniture removed. Selecting it opens the complete embedded diagram; its placement is fixed to the adjacent content height and does not stretch the layout.
04
Configuration Notes
Shared family listing
The quick-start source lists five PLC-3 EEPROM memory catalog numbers together.
Record boundary
No capacity claim is published here for this exact number.
05
Support Questions
Our PLC-3 parts list says only ‘memory module’; how do we stop a 1775-MEF request being mistaken for a scanner or I/O card?
For 1775-MEF, the official PLC-3 record identifies it as an EEPROM memory module, while scanners and 1771-IE I/O modules are separate component categories.
A controller restart investigation needs the correct memory-family reference; which numbers share the documented 1775-MEF group?
For 1775-MEF, the reviewed source groups it with 1775-ME4, 1775-ME8, 1775-MEA and 1775-MED as PLC-3 EEPROM memory modules.
Can we quote a memory capacity for 1775-MEF from a neighbouring ME catalog number?
For 1775-MEF, the reviewed official quick-start source does not state a capacity for this exact number, so a capacity must not be copied from another ME variant.
Where does 1775-MEF fit when a PLC-3 chassis is being rebuilt?
For 1775-MEF, it is a processor-side PLC-3 memory-module component, separate from the 1775-P1/P3 supply and 1775-S-series scanner roles.
Why is the full 1775-MEF number needed on a replacement record?
For 1775-MEF, MEF is one named member of a multi-number EEPROM family, so the complete suffix-bearing catalog number avoids an ambiguous memory-module request.
What should be checked before substituting 1775-MEF in an existing controller?
For 1775-MEF, compare the full catalog number with the installed PLC-3 chassis and processor record; the reviewed source establishes the family role but not a universal capacity or revision equivalence.
06
Moore Automation
Moore Automation
Industrial automation parts support
Moore Automation provides industrial automation parts for maintenance and replacement planning. Supply enquiries can be prepared with the complete manufacturer model and required quantity.
- Original products
- Fast delivery
- 1-year warranty
- 12-hour online response
www.mvme.cn
07
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08
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