1756-RM2 1756RM2 Allen Bradley AB ControlLogix Redundancy Enhanced Module

1756-RM2 1756RM2 Allen Bradley AB ControlLogix Redundancy Enhanced Module

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Product Details

The AB 1756-RM2 is a ControlLogix Redundancy Module. It requires a redundant system for a backup in case of main system failure. It has enhanced features with speeds of up to 1000 Mbps. When paired with 1756-L7x controllers in both chassis, it gives the best scan performance. For cross loading, the 1756-RM2 uses redundant fiber ports with no single point of failure. During channel switchover, the processing chassis remains synched while the scan time may encounter a delay of around 10 ms. It has enhanced safety features with interference-free diagnostics.

The 1756-RM2 redundancy module draws 1.16 A current at 5.1V DC and 3.4 mA at 24V DC. It has a maximum power dissipation of 6W and a thermal dissipation of 21 BTU/hr. It can be installed in any slot in a ControlLogix chassis. The 1756-RM2 weighs 0.64 lbs. and it has an open enclosure. For communication, it supports up to seven enhanced ControlNet and EtherNet/IP communication modules. For wiring, the 1756-RM2 supports 1756-RMC1, 1756-RMC3 and 1756-RMC10 cable with 1m, 3m and 10m lengths respectively.
The ControlLogix 5560 and ControlLogix 5570 series of controllers support the 1756-RM2 module. The redundant system must have following components: two 1756 chassis with the same number of slots, modules, and firmware versions, and two additional ControlNet nodes. The Redundancy Module Configuration tool, RSLinx 2.59.01 communication software, and RSLogix 5000 20.01.00 programming software are required to run the 1756-RM2.

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