- Check capacity against the complete PLC-3 program, data tables, procedures, symbols, and messages
- Preserve a verified memory map and full controller backup before replacing the module
- Restore and validate the original application without changing its programmed memory requirement
1775-MEA supplies the documented 65,536-word memory option for a PLC-3 processor chassis.
Available capacity must cover the complete program together with data tables, procedures, symbols, and message storage used by the machine.
A verified memory map and full controller backup are required to confirm that the original application can be restored without a capacity change.
Availability, condition, price, and shipping time for 1775-MEA are confirmed during quotation.
Allen-Bradley 1775-MEA 64K 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 64K or 65,536 words to 1775-MEA.
- The retained application must fit this capacity together with its data and message areas.
- Any planned capacity change requires a separate controller-engineering review.
- The backup should include programs, data tables, procedures, symbols, and messages.
- The current memory map should be recorded before the installed module is removed.
- A backup is not accepted until it can be read and associated with the correct machine.
- Install only after confirming the exact MEA catalog and processor-chassis location.
- Restore the verified application and check memory and processor diagnostics.
- Validate controller functions and retained data before releasing the machine.
- PLC-3 applications whose verified program, data tables, messages, and procedures fit within the 65,536-word capacity of 1775-MEA
- Maintenance replacements that must preserve the original 64K memory image, processor-chassis identity, and system-status records
- Legacy machine or process control systems requiring the documented 1775-MEA capacity rather than an unverified memory-size change