What redundancy is built into E-PLEX®?
The end-user of any E-PLEX® system can access data and input control command via a number of user-interface and “switches”. Great care has been taken to ensure redundant access to data and control points both for convenience and for system reliability. If one display or control point fails, the system will continue to operate and data can be monitored and control managed via alternative modules. Within the Clock module, a backup copy of all module software is maintained. If a module fails, a “blank” spare can be connected to the bus and the Clock immediately recognizes it and downloads all required software. If 100% redundancy is desired, E-PLEX® can support an independent and completely redundant physical-layer as well as a “backup” Clock module that would become active should the main clock fail. Many of the digital I/O modules also have manual override capabilities to allow operation of a mission critical channel in the unlikely loss of the E-PLEX® data communications network.
