A transmission method of uncontrolled isolation RS485 communication

Ping Lu

doi:10.1117/12.2629206

7 March 2022 A transmission method of uncontrolled isolation RS485 communication

Ping Lu

Proceedings Volume 12167, Third International Conference on Electronics and Communication; Network and Computer Technology (ECNCT 2021); 121670V (2022) https://doi.org/10.1117/12.2629206
Event: 2021 Third International Conference on Electronics and Communication, Network and Computer Technology, 2021, Harbin, China

Abstract

This paper designs a transmission method of uncontrolled isolation RS485 communication. It is realized by using the differential transmission characteristics of RS485 bus and the transceiver characteristics of conversion chip. This method does not need CPU program control. It is convenient debugging and low cost. The method adopts optocoupler to isolate TTL signal. It meets the requirements of coal mine equipment for intrinsic safety and non intrinsic safety isolation of RS485 communication bus.

Citation Download Citation

Ping Lu "A transmission method of uncontrolled isolation RS485 communication", Proc. SPIE 12167, Third International Conference on Electronics and Communication; Network and Computer Technology (ECNCT 2021), 121670V (7 March 2022); https://doi.org/10.1117/12.2629206

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