The 1756-L61RMCN1, also known as the ControlNet Redundancy Bundle, is a hardware component used in the Allen-Bradley ControlLogix 5570 Programmable logic controller (PLC) system manufactured by Rockwell Automation. The bundle supports redundant ControlNet communication between ControlLogix 5570 controllers and ControlNet devices, enhancing system reliability and fault tolerance.
Features:
The 1756-L61RMCN1 bundle provides a redundant ControlNet communication path between the ControlLogix 5570 controller and ControlNet devices.
It utilizes two separate ControlNet networks, each with its own ControlNet interface module, to ensure continuous communication even if one network fails.
If one ControlNet network fails, the other network automatically takes over, preventing interruptions in the control process.
Components:
1756-CN2R ControlNet Interface module: This module serves as the main ControlNet interface for a redundant network.
1756-CNBR Backup ControlNet Interface module: This module acts as a backup ControlNet interface and takes over communications in the event of a primary network failure.
1756-JMPR jumpers: These jumpers establish a physical connection between the ControlNet interface module and the ControlLogix 5570 controller backplane.
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