RS-485 automatic transceiver circuits are favored because they use one less I/O pin compared to circuits with control pins, making them more popular in resource-constrained master control scenarios. How does the automatic transceiver achieve automatic sending and receiving, and what factors should be considered when selecting bias and termination resistors? RS-485 Automatic Transceiver Principle The … Read more
The RS-485 bus has advantages such as a simple structure and low cost. However, when engineers set up RS-485 bus networks, they often encounter the question: should termination resistors be added to improve the reliability of the entire network’s communication? This article will answer that question. 1. The Role of Termination Resistors For the RS-485 … Read more
This article introduces the correct connection method for RS-485 networks, including suggestions for twisted pair wiring and proper installation of termination resistors. It lists the receiver waveforms under correct and incorrect termination. Configurations from simple single transmitter/multiple receiver networks to multiple transceivers and multiple branch circuits are provided. This article can serve as a basic … Read more