Product Functions; Working Mode - Ebyte E851-RTU Series User Manual

Hide thumbs Also See for E851-RTU Series:

Table of Contents

Chengdu Ebyte Electronic Technology Co., Ltd.

4 Product Functions

The working mode is divided into master mode and slave mode, configured through Modbus register 40081 (0x0050). When the

register value is 0, it is the master mode; when the register value is 1, it is the slave mode, and the default slave mode.

4.1.1 Slave mode

In the slave mode (register value is 0x01), the data sent by the network end or the 485 bus end (transmitter) to the device meets

the Modbus RTU and Modbus TCP protocols, and the address in the data is the device address, and the device will respond with the

same protocol to send If the data sent by the network end or 485 bus end to the device does not meet the Modbus RTU, Modbus TCP

protocol, or meets the Modbus RTU, Modbus TCP protocol but the data address is not the device address, the data at the sending end

will be discarded.

In the slave mode, the device can directly connect to the device in the master mode through the 485 bus, so that when the slave is

not connected to the Internet, the network can also access the data of the slave through the master.

4.1.2 Host Mode

In the host mode (the register value is 0x00), the data sent by the network terminal or the 485 bus terminal (transmitter) to the

device meets the Modbus RTU and Modbus TCP protocols, and the address in the data is the device address, and the device will

respond to the sender with the same protocol ; If the data sent by the network end or the 485 bus end to the device does not meet the

Modbus RTU, Modbus TCP protocol, or meets the Modbus RTU, Modbus TCP protocol but the data address is not the device address,

E851-RTU(4440-ETH) User Manual

Table of Contents