Features:
- 16K PLC-3 memory capacity
- Error-detecting-and-correcting storage
- Consecutive thumbwheel addressing
Allen-Bradley 1775-ME4 contributes 16,384 words to the memory available in a PLC-3 processor chassis.
Its EDC role is storage for the ladder program and controller data, separate from the CPU and I/O-scanner functions.
Position 1 is the starting point for both a single-board installation and the ordered address sequence of a multi-board set.
Apter Power can assist with 1775-ME4 capacity records, label review, official literature, and quotation coordination.
1775-ME4 PLC-3 16K EDC 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 documented capacity is 16K, equal to 16,384 words of PLC-3 memory.
- Program and data demand must both fit the available tier before the board is selected.
- Expected project growth belongs in the memory plan rather than being left for the outage team to infer.
- Use thumbwheel position 1 when the controller has one memory module.
- Keep positions consecutive from 1 when the chassis contains several memory boards.
- Photograph the sequence before removal so the original order can be restored without guesswork.
- Remove processor-chassis power before inserting or removing the memory board.
- Guide the module through the upper and lower plastic tracks without forcing its card edge.
- Secure the chassis latch before the controller is returned to service.
- Stores PLC-3 programs whose confirmed demand fits the 16K memory tier.
- Holds controller data used by an installed modular PLC-3 system.
- Supports planned repair of a documented PLC-3 memory configuration.