EPA bus and LonWorks bus conversion adapter

Abstract

The invention relates to an EPA bus and LonWorks bus conversion adapter. The EPA bus and LonWorks bus conversion adapter comprises a LonWorks bus interface, a core control module and an EPA bus interface, wherein the LonWorks bus interface comprises an LonWorks network chip and a peripheral circuit thereof, and a neuron chip and a peripheral circuit thereof; the core control module comprises an ARM control chip and a peripheral circuit thereof, a 24V-5V power supply module, a 5V-3.3V power supply module and a standard JTAG circuit interface; the ARM control chip prefabricates a software system; and the EPA bus interface comprises an EPA network chip and a peripheral circuit thereof, and a network transformer. The adapter realizes mutual communication of a LonWorks bus and an EPA bus so that LonWorks equipment and EPA equipment can coexist in the same system; and when the equipment of a control system is upgraded in an industrial process, the system reforming cost is greatly lowered because new and old equipment are compatible.

Description

technical field [0001] The invention relates to a field bus conversion adapter in industrial process control, in particular to an EPA bus and LonWorks bus conversion adapter. Background technique [0002] At present, there are many bus standards in the field of industrial automation. The current popular field buses mainly include CAN (Control Area Network), PROFIBUS (Process Field Bus), HART (Highway Addressable Remote Sensor), FF (Foundation Field Bus ), LonWorks. Among them, LonWorks fieldbus technology based on LonWorks technology is the most widely used fieldbus technology in the world. Most of these bus standards are formulated and promoted by well-known companies in the field of automation. Due to their respective interests and technical confidentiality, different bus standards have caused difficulties in communication between various buses, and mutual access and operation between bus devices cannot be achieved. The obvious incompatibility among them makes the old e...

AI Technical Summary

Problems solved by technology

Due to their respective interests and technical confidentiality, different bus standards have caused difficulties in communication between various buses, and mutual access and operation between bus devices cannot be achieved. The obvious incompatibility among them makes the old equipment have to be eliminated, and the cost of system transformation is also greatly increased.

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