Simple Protocol Conversion; Multi-Host Mode - Ebyte E90-DTU User Manual

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Chengdu Ebyte Electronic Technology Co.,Ltd.

E90-DTU(433C30E)-V2.0 User Manual

5.8.2. Simple Protocol Conversion

Convert Modbus RTU data to Modbus TCP data, or convert Modbus TCP data to Modbus RTU data, to realize the

mutual conversion of Ethernet Modbus data and serial port Modbus data.

Simple protocol conversion can work in any mode (TCP client, TCP server, UDP client, UDP server, MQTT client),

no matter what mode it is working in, there can only be one Modbus master.

Simple protocol conversion configuration description (TCP server mode as an example, the left picture is the upper

computer, the right picture is the webpage):

There is only one Modbus master station for relatively simple protocol conversion, while the multi-master mode

can handle up to 4 Modbus TCP masters. One request is processed at a time, while the multi-host mode will be

sorted and processed according to the TCP request, and other links will wait), thereby solving the bus conflict

problem (currently only 4 host connections are supported), only supports working in TCP server mode, slave

machine Only in the serial port, otherwise it will not work properly.

With the increase of the number of hosts, the Modbus timeout time should be increased accordingly, and the

request interval should be increased. If multiple hosts are required to make continuous high-speed requests, it is

recommended to use a "storage gateway".

It is recommended to configure "Simple Protocol Conversion" when no multi-channel host is used.

Multi-host mode configuration (the picture on the left is the host computer, and the picture on the right is the

webpage):

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