Specifications
XBee®/XBee‐PRO®SERFModules
©2009DigiInternational,Inc. 89
The 64-bit destination address should be set to 0x000000000000FFFF for a broadcast
transmission (to all devices). The coordinator can be addressed by either setting the 64-bit
address to all 0x00s and the 16-bit address to 0xFFFE, OR by setting the 64-bit address to the
coordinator's 64-bit address and the 16-bit address to 0x0000. For all other transmissions, setting
the 16-bit address to the correct 16-bit address can help improve performance when transmitting
to multiple destinations. If a 16-bit address is not known, this field should be set to 0xFFFE
(unknown). The Transmit Status frame (0x8B) will indicate the discovered 16-bit address, if
successful.
The broadcast radius can be set from 0 up to NH. If set to 0, the value of NH specifies the
broadcast radius (recommended). This parameter is only used for broadcast transmissions. The
options byte may be set to 0x20 to invoke APS end-to-end security. This requires an application
link key to have been previously established between the source and destination nodes.
The maximum number of payload bytes can be read with the NP command. Note: if source routing
is used, the RF payload will be reduced by two bytes per intermediate hop in the source route.
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 0x1A
Frame-specific Data Frame Type 30x11
Frame ID 40x01
Identifies the UART data frame for the host to correlate
with a subsequent ACK (acknowledgement). If set to 0,
no response is sent.
64-bit Destination
Address
MSB 5 0x00
Set to the 64-bit address of the destination device. The
following addresses are also supported:
0x0000000000000000 - Reserved 64-bit address for the
coordinator
0x000000000000FFFF - Broadcast address
60x00
70x00
80x00
90x00
10 0x00
11 0x00
12 0x00
16-bit Destination
Network Address
MSB 13 0xFF Set to the 16-bit address of the destination device, if
known. Set to 0xFFFE if the address is unknown, or if
sending a broadcast.
LSB 14 0xFE
Source Endpoint 15 0xA0 Source endpoint for the transmission.
Destination Endpoint 16 0xA1
Destination endpoint for the
transmission.
Cluster ID
17 0x15
Cluster ID used in the transmission
18 0x54
Profile ID
19 0xC1
Profile ID used in the transmission
20 0x05
Broadcast Radius 21 0x00
Sets the maximum number of hops a broadcast
transmission can traverse. If set to 0, the transmission
radius will be set to the network maximum hops value.
Transmit Options 22 0x00 0, or 0x20 if APS end-to-end security should be invoked.
Data Payload
23 0x54
Data that is sent to the destination device
24 0x78
25 0x44
26 0x61
27 0x74
28 0x61
Checksum 29 0x3A 0xFF - the 8 bit sum of bytes from offset 3 to this byte.