Digi XBee-PRO 900 Instruction Manual page 31

XBee‐PRO® 900 OEM RF Modules
Frame ID (byte 5)
Identifies the UART data frame for the host to
correlate with a subsequent ACK
(acknowledgement).
Setting Frame ID to '0' will disable response
frame.
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Transmit Request
API Identifier Value: (0x10) A TX Request message will cause the module to send RF Data as an
RF Packet.TX Packet Frames
Transmit Request.
Start delimiter Length
0x7E MSB LSB API-specific Structure
API Identifier Identifier specific data
0x10
16-bit Destination Network Address
(bytes 14-15)
MSB first, LSB last.
Set to 0xFFFE for
Broadcast TX or if Network
Address is not known
64-bit Address (bytes 6-13)
MSB first, LSB last.
Broadcast =
0x000000000000FFFF
© 2008 Digi International, Inc.
Frame Data
Checksum
1 Byte
cmdData
Options (byte 17)
0x08 - Send multicast transmission. (Unicast
sent if not set.)
All other bits must be set to 0.
Broadcast Radius (byte 16)
Set to 0
RF Data: Bytes (s) 18-n
Up to 72 Bytes
per packet
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