eTung PLC-505, User Manual

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PLC-505 User Manual
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Figure 2-6: Upgrade firmware

Wait for a moment, until "Update" is shown, choose "Delete the
Former File", then click “Update”. It will prompt the file system has
been updated, the original settings is clear, and the system is
rebooting. Wait a moment and then refresh the webpage to see the
configuration page again.
2.5 Remote Configurations
SMS commands and remote AT commands can be used on PLC-505 to
modify configuration parameters remotely. Details are described
below:
1. Modify configuration parameters remotely via SMS
The SMS to configure PLC-505 parameters should follow the format
below: SMS password;AT commands
1) SMS password is the "SMS wakeup password" as shown in
wireless network settings of the web configuration interface,
with "1234" by default. This password is used to filter rubbish
SMS. Long SMS is not supported.
2) There can be multiple AT commands, and ";" is used between
SMS and AT command, and between AT commands. If there are
more than one AT command and some command fails, the
following commands will not be executed. If a command is