Design of Profibus System of Intelligent Circuit Breaker

The design scheme of bus system of intelligent circuit breaker based on Profibus-DP was introduced.The realization way of master and slave station was expounded.A CAN/Profibus-DP protocol conterter was added to intelligent circuit breaker with CAN interface,and this converter and this circuit breaker constituted the intelligent slave station,the master station adopted WinCC configuration software to monitor and control the slave station.This system can meet the requirement of network and automation of power distribution management.