Heartbeat Packet Function - Ebyte E842-DTU User Manual

Chengdu Yiyit Electronic Technology Co., Ltd
(Note: For the wrong network AT instruction, a unified reply is made to the .ERRER).
This demo takes the query Baud Rate as an example:
4.7 The registration package feature
Registration packages are turned off by default, and users can configure four types of registration packages, from sending
physical addresses (IMEI codes) when connecting, sending custom data when connecting, appending physical addresses at
connection time, and before each packet of data, adding custom data at connection time and before each packet of data, and
customizing the maximum length of the registration packet by 80 bytes (up to 40 bytes when set to HEX format), which can be
set by parameter configuration software.
4.8 Heartbeat pack function
In the idle state of network communication, the heartbeat package is used for network state maintenance. The heartbeat
period can be set from 0 to 65535 seconds, with a maximum length of 80 bytes (up to 40 bytes when set to HEX format).
Support network heartbeat, serial heartbeat two types of heartbeat, when selected as a network heartbeat, to communicate
idle start timing, according to the configured heartbeat cycle to the server to send heartbeat number package. Select as a serial
heartbeat to communicate idle start timing, according to the configured heartbeat cycle to the serial heartbeat packets, can be
set by the parameter configuration software.
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E842-DTU（EC03-485)User manual
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