Digi XBee-PRO S3 - AT Command Response; Modem Status

XBee‐PRO®900HP/XBee‐PRO®XSCRFModules
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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 ND (Node Discover) command).
Example: Suppose the BD parameter is changed on the local device with a frame ID of 0x01. If
successful (parameter was valid), the above response would be received.
Modem Status
Frame Type: (0x8A)
RF module status messages are sent from the module in response to specific conditions.
Example: The following API frame is returned when an API device powers up.
Frame Fields Offset Example Description
A
P
I
P
a
c
k
e
t
Start Delimiter 00x7E
Length
MSB 1 0x00
Number of bytes between the length and the checksum
LSB 2 0x05
Frame-specific Data
Frame Type 30x88
Frame ID 40x01
Identifies the serial interface data frame being reported.
Note: If Frame ID = 0 in the associated request frame
then no response frame will be delivered..
AT Command
5 ‘B’ = 0x42
Command Name - Two ASCII characters that identify the
AT Command.
6 ‘D’ = 0x44
Command Status 70x00
The least significant nibble indicates the command
status:
0 = OK
1 = ERROR
2 = Invalid Command
3 = Invalid Parameter
Command Data
Register data in binary format. If the register was set,
then this field is not returned, as in this example.
Checksum 8 0xF0 0xFF - the 8 bit sum of bytes from offset 3 to this byte.
Frame Fields Offset Example Description
A
P
I
P
a
c
k
e
t
Start Delimiter 00x7E
Length
MSB 1 0x00
Number of bytes between the length and the checksum
LSB 2 0x02
Frame-specific Data
Frame Type 30x8A
Status 40x00
0x00 = Hardware reset
0x01= Watchdog timer reset
0x0B = Network Woke Up
0x0C = Network Went To Sleep
Checksum 5 0x75 0xFF - the 8 bit sum of bytes from offset 3 to this byte.