The Secrets of Half-Duplex Communication in RS-485 (Moxa)
Introduction to the Moxa white paper detailing the essentials of RS-485 half-duplex communication.
RS-485 utilizes differential transmission to cancel out most of the various noise interferences that can affect the signal, making it suitable for long-distance serial communication. <Moxa> Moxa continues to provide industrial Ethernet solutions for broadband networks from edge to core with unparalleled availability and reliability as an innovative provider in industrial automation. They offer a wide range of over 2,000 network-related products. <Moxa's Key Products> Industrial Ethernet switches, serial device servers, media converters, secure routers, IP surveillance cameras.
basic information
A simple RS-485 network consists of one master and up to 32 slave devices. Since RS-485 uses half-duplex communication, the same two wires (D+ and D-) are used for both transmitting and receiving, which means a method must be incorporated into the system to control which side can transmit. This article explains the concept of Moxa's patented ADDC (Automatic Data Direction Control) and how ADDC operates. Please download the catalog for more information. <About Moxa> Moxa continues to provide industrial Ethernet solutions for broadband networks from edge to core with unmatched availability and reliability as an innovative provider in industrial automation. We offer a wide range of over 2,000 network-related products. 【Moxa's Key Products】 Industrial Ethernet switches, serial device servers, media converters, secure routers, IP surveillance cameras.
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