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Modbus is a serial communications protocol, designed for connecting industrial electronic devices. It was developed with industrial implementations in mind, but is already used for a wide variety of other applications. One advantage of this protocol is its simplicity, it is openly published and royalty-free, easy to deploy and maintain, and simply moves raw bits or words without placing many restrictions.
Modbus enables communication among many devices connected to the same network, for example a system that measures temperature and humidity and sends the results to a computer. For more information about Modbus and a general overview over the protocol, please refer to the respective Wikipedia article.
You can find all tools for managing your Modbus connections in the Devices menu. Please note that the Modbus device is also supported by the Widget Designer Free edition.
For getting started, click on "Add Master" and the Modbus Master Configuration dialog will open.
For managing existing Masters, click on "Master List" to open the Modbus Devices dialog providing an overview over all set up devices and their connection status.
As soon as you add Masters, they will be listed in this menu for quick access.