Frame descriptions AT Command frame - 0x08
XBee®-PRO 900HP/XSC RF Modules
123
Frame
data
fields Offset Description
Frame
type
3 0x08
Frame ID 4
Identifies the data frame for the host to correlate with a subsequent ACK
(0x88). If set to 0, the device does not send a response.
AT
command
5-6 Command name: two ASCII characters that identify the AT command.
Parameter
value
If present, indicates the requested parameter value to set the given register.
If no characters are present, it queries the register.
Example
The following example illustrates an AT Command frame when you query the device's NH parameter
value.
Frame data fields Offset Example
Start delimiter 0 0x7E
Length MSB 1 0x00
LSB 2 0x04
Frame type 3 0x08
Frame ID 4 0x52
AT command 5 0x4E (N)
6 0x48 (H)
Parameter value (optional)
Checksum 7 0x0F
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