Allen Bradley 1756-RM2 ControlLogix Redundancy Enhanced Module

FAQ

Q1: What is the 1756‑RM2 used for?
It enables high‑availability redundancy by synchronizing two ControlLogix chassis for fault tolerance.

Q2: How does the redundancy connection work?
Redundancy is achieved via fiber‑optic cables between two 1756‑RM2 modules in separate chassis.

Q3: Which controllers does it support?
It is designed for ControlLogix 5560 and 5570 family controllers.

Q4: What type of cables are used with this module?
It uses LC fiber‑optic connector cables such as 1756‑RMC1, RMC3, or RMC10.

Q5: Can the module be installed in any slot?
Yes, it occupies one chassis slot and can be placed in any available position.

Q6: What are the environmental operating conditions?
Typical industrial operation is between 0 °C and 60 °C with 5 %–95 % non‑condensing humidity.

Q7: Does the module contain active power electronics?
No, it mainly handles data synchronization and redundancy management; power draw is minimal.

Q8: What are the physical size and weight of the module?
The module is compact (around 140 mm × 40 mm × 145 mm) and weighs about 0.29 kg.

1756-RM2 Allen Bradley

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