DL485 PB DL485 PBR

PROFIBUS-Fiber Optic System

The systems DL485-PB connect Profibus-field bus networks by fiber optics. With the help of this innovative system, optical bus, star, tree and mixed structures are possible. The special multifunctional fiber optic system DL485-PBR also allows the construction of optical ring structures. The system of this series is especially suitable for applications with strict safety-related requirements as for instance: process industry, tunnel ventilation systems and railway technology. LEDs and potential-free contacts of a fault detector relay are able to signal defective states. FiberView works similarly to a traffic light. If the “traffic light” is green, everything is fine. If the yellow LED lights, the budget is still tolerable, but already below a certain system reserve. Additionally to the LED, this pre-warning level is also signaled by a potential-free contact. If the “traffic light” turns red there is a serious error.