Simple Protocol Conversion Mode; Multi-Host Mode - Ebyte NA111-A User Manual

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Chengdu Ebyte Electronic Technology Co.,Ltd.

 Storage gateway (Modbus firmware only).

 Configurable gateway (Modbus firmware support only).

4.5.1 Simple protocol conversion mode

Simple protocol transformation: Convert Modbus RTU data to Modbus TCP data, or Modbus

TCP data into Modbus RTU data, enabling Ethernet Modbus data to interoperate with serial

Modbus data.

Simple protocol transformations can work in TCP server mode or in TCP client mode, whether

working on tCP servers or TCP clients can only have one Modbus master.

The gateway works in TCP server mode:

 When the Ethernet side is the Main Station of TheModbus, only Theocket (prevents data

conflicts) can be connected all the way;

 When the serial port side is the main station of Modbus, up to6 Modbus TCP from the

station can be connected;

The gateway works in TCP client mode:

 The Ethernet side acts as the Modebus master, and the serial side theoretically supports up

to 128 RTU from the station;

Simple protocol conversion parameter configuration:

（1） Mode configuration:AT is configured as MOD1,and the web page, the desktop selects a

simple protocol conversion.

（2） Modbus Answer TimeOut Configuration: Range:0-65535ms,Default:500ms.

For simple concoding conversions, there can only be one Modbus master, and functional

upgrades are performed, and bus occupancy scheduling occurs when multiple hosts access the

Figure 4-8

Simple Protocol Conversion

NA111-A User Manual

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