User`s manual

WE-2100T Series User’s Manual Serial Command Mode
13-13
Entering Serial Command Mode
The module can enter Serial Command Mode through either a hardware trigger or a software
trigger, depending on how it has been configured. Please refer to the previous section for details on
how to configure the trigger type.
Hardware Trigger
z Connect a hardware trigger such as a button or a switch to DIO 0.
z Use the trigger to pull DIO 0 to low in order to enter Serial Command Mode. Low state must
be maintained for at least 200 ms to qualify as a valid trigger.
Software Trigger
z Send the 3 software trigger characters to the serial port in rapid sequence (less than 20 ms between
characters).
When first entering Serial Command Mode, the module will respond with the string “<E”
followed by CR. All data communication will cease when the device is in Serial Command Mode.
z Any open TCP connection will be closed, for both the client and the server.
z No new TCP connections will be allowed.
z UDP data communication will be disabled.
For testing purposes, you will likely use a terminal emulator to send and receive data frames for
Serial Command Mode. You will need to match the serial communication settings on the module,
which can be obtained using Network Enabler Administrator, the web console, or the Telnet console.
Exiting Serial Command Mode
After the module has entered Serial Command Mode, there are three ways to exit.
z Power Off: If the module is powered off without saving the configuration, all changes will be
lost when the module is powered on again.
z Exit by Command (OP Code: BR): There are two options when manually exiting by serial
command. Save & Restart must be selected if you want to save any of the changes that were
made during the Serial Command Mode session. Restart will restart the module without
saving any of the changes.
z Auto Restart: If 5 minutes elapses without inputting a valid command, then the module will
automatically restart without saving the configuration.