XBP24-PKI-001-RA Digi International/Maxstream, XBP24-PKI-001-RA Datasheet - Page 21

• Manufacturer Part Number: XBP24-PKI-001-RA
• Description: MODULE 802.15.4 RS-232 ANT
• Manufacturer: Digi International/Maxstream
• Series: XBEE-PRO™r

Specifications of XBP24-PKI-001-RA

• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4
• Applications: Home/Building Automation, Industrial Control, ZigBee™
• Power - Output: 0dBm
• Sensitivity: -92dBm
• Voltage - Supply: 2.8 V ~ 3.4 V
• Current - Receiving: 55mA
• Data Interface: Connector, Female DB-9
• Antenna Connector: RP-SMA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Memory Size: -
• Current - Transmitting: -
• Other names: Q3255595

© 2008 Digi International, Inc.
XBee‐PRO PKG‐R® RS‐232 RF Modem – 802.15.4 ‐ Product Manual v1.xAx
3.4.4. Command Mode
AT Command Mode
To modify or read RF Modem parameters, the modem must first enter into Command Mode - a
state in which incoming characters are interpreted as commands. Two command mode types are
supported: AT Command Mode and API Command Mode.
To Enter AT Command Mode:
Default AT Command Mode Sequence (for transition to Command Mode):
All of the parameter values in the sequence can be modified to reflect user preferences.
NOTE: Failure to enter AT Command Mode is most commonly due to baud rate mismatch. Ensure the
‘Baud’ setting on the “PC Settings” tab matches the interface data rate of the RF modem. By default,
the BD parameter = 3 (9600 bps).
To Send AT Commands:
Figure 3‐05. Syntax for sending AT Commands
To read a parameter value stored in the RF modem’s register, omit the parameter field.
The preceding example would change the RF modem Destination Address (Low) to “0x1F”. To
store the new value to non-volatile (long term) memory, subsequently send the WR (Write)
command.
For modified parameter values to persist in the modem’s registry after a reset, changes must be
saved to non-volatile memory using the WR (Write) Command. Otherwise, parameters are
restored to previously saved values after the modem is reset.
System Response. When a command is sent to the modem, the modem will parse and execute
the command. Upon successful execution of a command, the modem returns an “OK” message. If
execution of a command results in an error, the modem returns an “ERROR” message.
To Exit AT Command Mode:
For an example that illustrates programming the RF modem using AT Commands, refer to the "RF
Modem Configuration" chapter [p22].
Send the 3-character command sequence “+++” and observe guard times before and after the
command characters. [Refer to the “Default AT Command Mode Sequence” below.]
Send AT commands and parameters using the syntax shown below.
1.
2.
• No characters sent for one second [GT (Guard Times) parameter = 0x3E8]
• Input three plus characters (“+++”) within one second [CC (Command Sequence Character)
• No characters sent for one second [GT (Guard Times) parameter = 0x3E8]
parameter = 0x2B.]
Timeout) Command, the RF modem automatically returns to Idle Mode.
Send the ATCN (Exit Command Mode) command (followed by a carriage return).
If no valid AT Commands are received within the time specified by CT (Command Mode
[OR]
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