Intelligent circuit breaker with Modbus protocol interface sockets

Abstract

The invention discloses an intelligent circuit breaker with Modbus protocol interface sockets. The intelligent circuit breaker comprises a molded case circuit breaker body and a communication protocol converter; the molded case circuit breaker body comprises a base and an upper cover, and the upper cover comprises a panel and lateral walls; the panel and the lateral walls are provided with connected notches, and a first communication interface socket is arranged in the upper cover; a first communication interface socket and a second communication interface socket are arranged on a shell of the communication protocol converter; a liquid crystal display, a debugging button and two signal indication lamps are arranged on the shell of the communication protocol converter; the liquid crystal display, the debugging button and the panel of the upper cover are located on the same side of the upper cover, and the liquid crystal display and the debugging button essentially become a part of an operation panel of the molded case circuit breaker body. The first communication interface sockets are the Modbus protocol interface sockets, and the second communication interface socket is a CAN protocol interface socket or a Devicenet protocol interface socket or a TCP protocol interface socket or a Prifibus protocol interface socket. The intelligent circuit breaker is relatively compact and reasonable in structure.

Description

technical field [0001] The application of the present invention is a divisional application with the filing date of "December 31, 2012", the application number of "2012105913464", and the patent title of "A Smart Circuit Breaker". Background technique [0002] Compared with most other buses, the Modbus bus itself has many limitations, mainly reflected in low efficiency, poor real-time performance of the system, low communication reliability, high maintenance costs, complex network engineering debugging, unsatisfactory transmission distance, single There are few nodes that can be connected to the bus, and the application is not flexible. However, in the application of industrial field bus, RS485 used by Modbus protocol has a slight advantage in hardware cost and development difficulty, and it is still widely used in China, so it is unrealistic to completely abandon Modbus at this stage, so in practical applications Most of the smart circuit breakers are developed and designe...

AI Technical Summary

Problems solved by technology

In addition, the current smart circuit breakers all use external protocol converters for protocol conversion. Good consistency, for example, the performance parameters and settings of smart circuit breakers from different manufacturers are different, and the performance and price of protocol converters from different manufacturers are also quite different, making it difficult for customers to find a circuit breaker that is more suitable for them. And the supporting protocol converter, resulting in the final cost and performance are always unsatisfactory

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