Monolithic F330 signal isolation and long-distance communication design
Abstract
Signal isolation and long-distance data communications in industrial production plays an increasingly important role. In order to adapt to the current site of the industrial complex and decentralized environment of industrial control systems, developing a SCM signal isolation and long-range communications technology has been inevitable.
In this paper, eight SCM C8051F330 mixed signal isolation and long-distance data communications. Mainly on how to use new digital isolators ADuM1201 industrial analog signal to the scene of isolation and into the SCM corresponding data processing. After the communication protocol conversion to achieve the SCM F330 two-way serial bus SMBusI / O interface with the long-distance telecommunications network RS485 digital signal transmission. ADuM1201 replace the traditional use of optoelectronic devices isolated industrial site signal isolation, compared to the traditional method of isolation, lower power consumption of the system, simplify the structure of the system, enhance the stability of the system. The design used by RS485 bus, and the PC to pre-concentrate microcontroller system of remote monitoring, control and management to solve the long-distance communications problems.
Key words: signal isolation C8051F330 long-distance communication RS485
