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4) Add the MAC address before sending TCP or UDP to identify the device.
5) IP filtering: the device only receives data from the network port with the
specified IP address.
6) IO pin control: control the level of some output pins by any specified
command.
7) Automatically query the content of the instrument of the lower computer,
assemble the returned instruction and send it to the cloud software in a fixed
format.
8) Implement heartbeat packets and registration packets with wildcards of any
length.
9) Multiple serial instructions are combined and sent to the cloud after the
combination.
10) The super-long serial instruction is split into several smaller instructions to be
read by the network device.
10.3 Notice
1) When “httpd.txt” is not stored, the device will be used as a normal serial port
server. Transcoding is disabled.
2) To delete “httpd.txt” you can simply change “httpd.txt” to “1.txt” and then
download it again. Re-downloading the firmware of the device will also delete
the “httpd.txt” file, and downloading the firmware progress bar will delete the
“httpd.txt” file if it only moves 1 frame. Refer to the following sections for
download firmware methods.
3) The device must be restarted after downloading the “httpd.txt” file.
4) When an “http.txt” editing error causes syntax parsing to fail, which can cause
a device startup exception, set the “def” switch (reset switch) of the device to
“On” and re-power it. This will start without “httpd.txt”. Please download the
new “httpd.txt” or delete “httpd.txt” and then set “def” back to the “Off”