Allen Bradley 1756-M12 ControlLogix Memory Module

FAQ

Q1: What is the main purpose of the 1756‑M12 module?
It provides additional nonvolatile memory for compatible ControlLogix controllers to store user programs and data.

Q2: What controllers is this memory module compatible with?
It is designed for use with specific Logix5555 ControlLogix processors such as 1756‑L55 and variants.

Q3: How much memory does this module provide?
Approximately 750 kB of nonvolatile memory.

Q4: How is the module powered?
It is powered through the ControlLogix chassis backplane.

Q5: What are the environmental operating limits?
It operates between 0 °C and 60 °C, with storage from −40 °C to 85 °C.

Q6: What physical size is this memory board?
Typical board dimensions are about 3.8 cm high, 15.2 cm wide, and 14.0 cm deep.

Q7: Is this module still manufactured?
No, the 1756‑M12 has been discontinued by Rockwell Automation; it is available as a legacy/surplus part.

Q8: How heavy is the 1756‑M12 module?
The module weighs roughly 0.09 kg (0.19 lbs).

1756-M12 Allen Bradley

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