Modes
Serial modes
n
n
A serial break for six seconds enters Command mode. You can issue the "break" command
from a serial console, it is often a button or menu item.
Asserting DIN (serial break) upon power up or reset enters Command mode. XCTU guides you
through a reset and automatically issues the break when needed.
Both of these methods temporarily set the device's baud rate to 9600 and return an OK on the UART
to indicate that Command mode is active. When Command mode exits, the device returns to normal
operation at the baud rate that BD is set to.
Send AT commands
Once the device enters Command mode, use the syntax in the following figure to send AT commands.
Every AT command starts with the letters AT, which stands for "attention." The AT is followed by two
characters that indicate which command is being issued, then by some optional configuration values.
To read a parameter value stored in the device’s register, omit the parameter field.
The preceding example changes NI (Node Identifier) to My XBee.
Multiple AT commands
You can send multiple AT commands at a time when they are separated by a comma in Command
mode; for example, ATNIMy XBee,AC<cr>.
The preceding example changes the NI (Node Identifier) to My XBee and makes the setting active
through AC (Apply Changes).
Parameter format
Refer to the list of AT commands for the format of individual AT command parameters. Valid formats
for hexidecimal values include with or without a leading 0x for example FFFF or 0xFFFF.
Response to AT commands
When using AT commands to set parameters the XBee/XBee-PRO S2C 802.15.4 RF Module responds
with OK<cr> if successful and ERROR<cr> if not.
Apply command changes
Any changes you make to the configuration command registers using AT commands do not take effect
until you apply the changes. For example, if you send the BD command to change the baud rate, the
actual baud rate does not change until you apply the changes. To apply changes:
1. Send AC (Apply Changes).
2. Send WR (Write).
or:
3. Exit Command mode.
XBee/XBee-PRO S2C 802.15.4 RF Module User Guide
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ETC [ ETC ]
