Do I need a special protocol converter for connecting devices with a serial Modbus RTU interface to an Ethernet network? Is the server of serial devices sufficient?.The following frequently asked questions and their answers are designed to help you identify and prevent frequent problems with the Modbus protocol conversion. As a result, there are interfacing problems between Modbus RTU and Modbus TCP protocols. Many systems already work through Modbus TCP using Ethernet, for example, SCADA. The complexity and scale of networks are increasing. Today, more and more industrial devices are starting to support the Ethernet standard. That's why the Modbus RTU protocol has become so popular.
Modbus RTU devices are easy to implement and inexpensive to maintain. Typically, the devices have an RS-232 or RS-485 interface with a DB-9 connector or a terminal block. The Modbus protocol is widely used in the automation of production, many devices support the Modbus RTU communication protocol, which uses a serial interface.
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