Transmission, addressing, and routing Data transmission
XBee/XBee-PRO ZigBee RF Modules User Guide 59
API firmware
Use the transmit request, or explicit transmit request frame (0x10 and 0x11 respectively) to send data to the
coordinator. The 64-bit address can either be set to 0x0000000000000000, or to the 64-bit address of the
coordinator. The 16-bit address should be set to 0xFFFE when using the 64-bit address of all 0x00s.
To send an ASCII 1 to the coordinator's 0x00 address, the following API frame can be used:
7E 00 0F 10 01 0000 0000 0000 0000 FFFE 00 00 31 C0
If the explicit transmit frame is used, the cluster ID should be set to 0x0011, the profile ID to 0xC105, and the
source and destination endpoints to 0xE8 (recommended defaults for data transmissions in the Digi profile.) The
same transmission could be sent using the following explicit transmit frame:
7E 00 15 11 01 0000 0000 0000 0000 FFFE E8 E8 0011 C105 00 00 31 18
Notice the 16-bit address is set to 0xFFFE. This is required when sending to a 64-bit address of 0x00s.
Now suppose the coordinator's 64-bit address is 0x0013A200404A2244. The following transmit request API frame
(0x10) will send an ASCII “1” to the coordinator:
7E 00 0F 10 01 0013 A200 404A 2244 0000 0000 31 18
Example 2: send a broadcast transmission.
Note In this example, a \r refers to a carriage return character.
Perform the following steps to configure a broadcast transmission:
1 Enter command mode (+++).
2 After receiving an OK\r, issue the following commands:
a. ATDH0\r
b. ATDLffff\r
c. ATCN\r
3 Verify that each of the three commands returned an OK\r response.
4 After setting these command values, all serial characters will be sent as a broadcast transmission.
API firmware
Device A
Device B
Neighbor A:
Outgoing cost: very poor
Incoming cost: very good
Neighbor B:
Outgoing cost: very good
Incoming cost: very poor
Link status (A to B)
Link status (B to A)
+18 dBm tx power
+3 dBm tx power
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