Digi XBee SX User Manual

Operate in API mode API frames
XBee®/XBee-PRO SX RF Module User Guide
125
Frame data fields Offset Example
Start delimiter 0 0x7E
Length MSB 1 0x00
LSB 2 0x16
Frame type 3 0x10
Frame ID 4 0x01
64-bit destination
address
MSB 5 0x00
6 0x13
7 0xA2
8 0x00
9 0x40
10 0x0A
11 0x01
LSB 12 0x27
16-bit destination
network address
MSB 13
0xFF
LSB 14
0xFE
Broadcast radius 15 0x00
Options 16 0x00
RF data 17 0x54
18 0x78
19 0x44
20 0x61
21 0x74
22 0x61
23 0x30
24 0x41
Checksum 25 0x13
If you enable escaping (AP = 2), the frame should look like:
0x7E 0x00 0x16 0x10 0x01 0x00 0x7D 0x33 0xA2 0x00 0x40 0x0A 0x01 0x27 0xFF 0xFE 0x00
0x00 0x54 0x78 0x44 0x61 0x74 0x61 0x30 0x41 0x7D 0x33
The device calculates the checksum (on all non-escaped bytes) as [0xFF - (sum of all bytes from API
frame type through data payload)].

Digi XBee SX Specifications

General

Brand	Digi
Model	XBee SX
Category	Control Unit
Language	English