The 1756-RMEN2 is a redundancy bundle from Allen-Bradley, a Rockwell automation brand. It is designed to provide redundant control for ControlLogix and GuardLogix controllers. The bundle includes:
(4) 1756-EN2TR Ethernet Remote I/O modules
Two 1756-A7 ControlLogix controllers
(2) 1756-RM2 Redundancy manager module
(1) 1756-RMC1 Redundant control module
The 1756-RMEN2 is similar to the 1756-RMEN1, but it has two additional 1756-EN2TR Ethernet Remote I/O modules. This allows you to connect more I/O devices to your system.
Here are some of the key features of the 1756-RMEN2:
Hot standby redundancy: If the primary controller fails, the backup controller is ready to take over.
Seamless switching: The switching between controllers is very fast without losing data or interrupting the process.
Troubleshooting: The Redundancy manager module provides diagnostic information to help you resolve problems.
The 1756-RMEN2 is a good choice for applications that require high availability and a large number of I/O devices, such as:
Manufacturing industry
Oil and gas
Water and wastewater
transport
