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Description
Overview
Essential details：1756-RM2 ControlLogix Redundancy Modules Allen Bradley
Products Description
Install the Hardware
Follow these steps to set up and install your system’s hardware components.
Install the First Chassis and Its Components
When you install an enhanced redundancy system, install one chassis, and its necessary components, at a time.
Module Placement and Partnering
Each pair of controllers and communication modules must be comprised of compatible partner modules. Two modules in the same slot are considered as compatible partners only if they contain compatible hardware and firmware and other rules that can be enforced by the module itself. The compatibility status (Compatible or Incompatible) is determined by either the module in the primary chassis or its partner in the secondary chassis.
The redundancy module pair must occupy the same slots in their respective chassis. The redundancy module pair does not consider the chassis pair to be partnered if the redundancy modules are placed in different slots, even if the partners of other modules are present in the same slot.
The redundancy module prevents certain redundancy operations, such as Qualification, if incompatible modules reside in the redundant-control chassis pair.
1756-RM2
Installation Requirements
Before you install the module, be sure to note the following:
• Understand redundant systems and redundant media.
• Verify that the planned modules for each redundant chassis of the pair are identical – including firmware revisions.
• Verify that your enhanced redundancy firmware revision is compatible with your planned redundant chassis modules.
• The 1756-RM/B module offers a higher level of performance than a 1756-RM/A module. Both modules can coexist in a redundant system, but the highest system performance is achieved when the 1756-RM/B modules are used together when used in conjunction with a 1756-L7x controller.
• The 1756-RM2/A module, when used in conjunction with a 1756-L7x controller, offers higher crossload speeds than the 1756-RM/B module.
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Superiority products 1756-RM2 ControlLogix Redundancy Modules Allen Bradley
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