Allen Bradley 1764-MM1 Non‑volatile memory module

FAQ

Q1. What is the 1764‑MM1 used for?
It is a memory expansion module for MicroLogix 1500 PLCs used to back up and transfer controller programs and data.

Q2. What is the memory capacity of this module?
It provides 8 KB of non‑volatile memory for programs and data.

Q3. Does this memory module require a battery to hold data?
No, it uses EEPROM, so it retains contents without a battery.

Q4. Can this module be inserted or removed while power is applied?
Yes, it supports removal and insertion under power (RIUP).

Q5. Which controllers support the 1764‑MM1?
It is compatible with MicroLogix 1500 CPUs such as 1764‑LRP and 1764‑LSP.

Q6. What environmental conditions can it operate in?
It operates from 0 °C to 55 °C with 5 %–95 % non‑condensing humidity.

Q7. What are the physical dimensions and weight of the module?
It is a small plug‑in card weighing about 0.03 kg; approximate size ~25 mm × 25 mm × 10 mm.

Q8. Is the 1764‑MM1 still manufactured?
No, this memory module has been discontinued by Rockwell Automation.

1764-MM1 Allen Bradley

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