Chengdu Ebyte Electronic Technology Co.,Ltd.
E18-DTU(Z27-ETH) User Manual
Copyright ©2023
，成都亿佰特电子科技有限公司
and receive data within the set time, and the device will automatically disconnect
。
When the short connection function is turned on, the short connection time setting parameter ranges from (2-255) seconds。
3.6.5 Connect the Empty Cache feature
The device is in client mode, when the TCP connection is not established, the data received by the serial port will be placed in the buffer,
the serial port receiving cache is 1024 bytes, greater than 1024 bytes will overwrite the earliest accepted data, after the network connection is
successful, you can choose to clear the serial port cache or send the cache through the network through the configuration.
Enabled: The device does not save the data received by the serial port before the connection is established.
Disable: After the connection is established, the network will receive the data cached by the serial port.
3.6.6 Heartbeat pack function
In client mode, users can choose to send heartbeat packets and customize the heartbeat packet time. Heartbeat packet can choose network
heartbeat packet, serial port heartbeat packet two modes, support base 16 and ASCII code sending, this heartbeat packet is not MQTT
heartbeat, in MQTT client mode needs to be closed, MQTT heartbeat only in "MQTT mode" to configure heartbeat packet cycle time, it is
recommended not to configure less than 60s, such as Alibaba Cloud manual recommended to use 120s.
Heartbeat packet sending mode:
The default is to turn off heartbeat packet mode.
Serial port heartbeat pack ->The device sends heartbeat content to the serial port bus according to the set heartbeat interval.
Netport heartbeat pack ->The device sends heartbeat content to the network port bus according to the set heartbeat interval.
Custom heartbeat packet content (up to 40 bytes (ASCII) data, 20 bytes (HEX) data).
Customize the heartbeat packet sending interval, if the value is greater than zero, the heartbeat packet function can be turned on, and the
range can be set to (1-65536) seconds when turned on, and 0 when turned off.
3.6.7 Enrollment package features
In client mode, users can choose to send the registration package, customize the registration package time, and customize the registration
package content (up to 40 bytes (ASCII) data and 20 bytes (HEX) data).
Registration packages support the following modes：
（
1
）
The MAC address is sent when the network establishes a connection with the device
（2） The data for the custom enrollment package is sent when the network establishes a connection to the device
（3） After the network establishes a connection with the device, each packet of data sent by the device to the network is preceded by a
MAC address
（4） After the network establishes a connection with the device, each packet of data sent by the device to the network is preceded by a
MAC address
3.7 Modbus gateway
3.7.1 Simple protocol conversion model
To Next Page
Loading...
Need help?
General
