It is used widely by many manufacturers throughout many industries. It has become a standard communications protocol in industry, and is now the most commonly available means of connecting industrial electronic devices. Modbus is an open protocol, meaning that it's free for manufacturers to build into their equipment without having to pay royalties. The official Modbus specification can be found at The Client can also write information to the Servers. In a standard Modbus network, there is one Client and up to 247 Servers, each with a unique Server Address from 1 to 247. The device requesting the information is called the Modbus Client and the devices supplying information are Modbus Servers. In simple terms, it is a method used for transmitting information over serial lines between electronic devices. Modbus is a serial communication protocol developed by Modicon published by Modicon® in 1979 for use with its programmable logic controllers (PLCs). This document describes how modbus works and what needs to be done for proper installation. Additional Management Cards and Options.NetShelter Wall (Mounted) Transfer SwitchesĮcoStruxure Service Plan for Three-Phase UPSĮxtended Warranties - Critical Power & Cooling NetShelter Shelving & Mounting Accessories Sensors / Cameras / Licenses / Accessories Uniflair Ceiling Mounted Split Room Cooling
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