A redundant control system for Profinet can be created with the new RFC 460R PN 3TX high-performance controller from Phoenix Contact. This makes it possible to reduce system shutdowns and prevent dangerous situations, for example, in tunnels or airports. In it, two RFC 460R type Profinet controllers are used to build a fail-safe automation system. One controller controls and manages the process, and in the event of a failure, the second controller is seamlessly activated to perform processes at both the lower and higher levels. Installing this redundant system is easy: the user simply connects both controllers via a fibre optic synchronisation cable and then programs one of the two controllers. The second PLC is automatically configured for all redundancy functions, thanks to AutoSync technology. Both controllers are continuously synchronised.
Contact Andre Kemp, Phoenix Contact, Tel 011 801-8200,
andrek@phoenixcontact.co.za