Practical guide:How to use Comark's Profibus fiber optic converter efficiently

1.Project Overview

PROFIBUS is one of the more widely used protocols for Fieldbus,and supports Master-Slave as well as Multi-Master Multi-Slave mode.In a multi-master environment, the masters decide the control of Fieldbus through token passing, and after obtaining the control, the masters can send and receive data with the slaves, realizing point-to-point communication.
2.Solution

In PROFIBUS, the distance between different sites is long, the use of DP cables for communication, wire is expensive, wiring is not convenient. In contrast, fiber optics in the long-distance transmission is more advantageous, the use of Profibus fiber optic converter will be converted to serial signals for the transmission of optical signals can be a solution to this problem. In the industrial environments, Comark's fiber optic converter is resistant to high temperature use, long life and so on to meet a variety of industrial field requirements.

Support a variety of connection methods, more flexible networking.


Point to Point


Bus type topology


Star topology




3.Equipment Advantages
(1) Provide 1~2 Profibus fieldbus, communication rate (9.6K-12M)bps.
(2) Provide 1~2 fiber optic links, default ST interface, optional SC, FC.
(3) Provide fiber optic link fault output alarm LED status indicator.
(4) Isolated redundant 18~36V DC power supply (9~18VDC power supply models can be customized) Isolated voltage 1500V, support the reverse connection protection function.
(5) IP40 protection level, wavy aluminum reinforced enclosure, standard industrial 35mm rail mounting method.
(6) Operating temperature range: -40~85℃, to meet various industrial site requirements.