XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 83
AT Command Response
Frame Type: 0x88
In response to an AT Command message, the module will send an AT Command
Response message. Some commands will send back multiple frames (for example, the
AS (Active Scan) command).
Example: Suppose the BD parameter is changed on the local module with a frame ID of
0x01. If successful (parameter was valid), the response below would be received.
Frame Fields Offset Example Description
API Packet
Start
0 0x7E
Length
MSB 1 0x00
Number of bytes between the length and the checksum
LSB 2 0x05
API Frame
Specific Data
API Frame
Identifier
3 0x88
Frame ID 4 0x01
AT
Command
MSB 5 0x42 (B)
Command Name - Two ASCII characters that identify the
AT command
LSB 6 0x44 (D)
Status 0x00
0 = OK
1 = ERROR
2 = Invalid Command
3 = Invalid Parameter
Parameter
Value
7
Register data in binary format. If the register was set, then
this field is not returned, as in this example.
Checksum 8 0xF0
0xFF minus the 8 bit sum of bytes from offset 3 to this
byte.