XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 71
API Frames
The following sections illustrate the types of frames encountered while using the API.
TX (Transmit) Request: 64-Bit
Frame Type: 0x00
This frame type uses the XBee Application Service. This command allows for software
compatibility with other XBee module such as the 802.15.4 module.
Frame Fields Offset Example Description
API Packet
Delimiter
0 0x7E
Length
MSB 1 0x00
Number of bytes between the length and the
checksum
LSB 2 0x0D
API Frame
Specific Data
API Frame
Identifier
3 0x00
Frame ID 4 0x01
64-Bit
Destination
Address
5
0x00
Align IP address to low 32-bits of the field. The
other bytes set to 0. IP address is in hex. The
address in this example is 192.168.0.100
0x00
0x00
0x00
0xC0
0xA8
0x00
0x64
TX Options 13 0x00
0x01 – Disable ACK
All other bits must be set to 0.
Data 14 0x1516
Max is 1392 bytes. Data will be sent to the XBee
application service port.
Checksum
0x07
0xFF minus the 8 bit sum of bytes from offset 3 to
this byte.
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