Allen-Bradley ControlLogix Redundancy Enhanced Module 1756-RM2

Regular price $2,385.00

Allen-Bradley ControlLogix Redundancy Enhanced Module 1756-RM2

The dual fiber ports of the 1756-RM2 module constitute a redundant pair of
communication channels between the partner 1756-RM2 modules in a
redundant chassis pair. One of the channels is termed as 'ACTIVE', while the
other channel is termed as 'REDUNDANT'. All data communication between
the partner redundancy modules is conducted exclusively over the ACTIVE
channel. If or when the ACTIVE channel fails, a 'Fiber Channel Switchover' is
initiated automatically and all data communication shifts to the REDUNDANT
channel, which then becomes the new ACTIVE channel.

The ControlLogix 5560 and ControlLogix 5570 controllers support controller redundancy. In a redundant controller
system, you need these components:
• Two 1756 chassis, each with the same of the following:
– Number of slots
– Compatible modules in the same slots
– Redundancy firmware revisions in each module
– Two additional ControlNet nodes outside the redundant chassis pair if the application uses ControlNet networks
• One 1756-RM2 or 1756-RM2XT redundancy module per chassis that is connected by a 1756-RMCx cable
• One or two ControlLogix 5560 or ControlLogix 5570 controllers
• As many as seven enhanced communication modules

Connector cables
     1756-RMC1, 1 m (3.28 ft)  ---buy seperately
     1756-RMC3, 3 m (9.84 ft) ---buy seperately
     1756-RMC10, 10 m (32.81 ft)---buy seperately
Slot width : 1 slot
Module location: Chassis-based, any slot
Controller families, supported: ControlLogix 5560, ControlLogix 5570
Weight, approx 0.29 kg (0.64 lb)