API Operation Send ZDO commands with the API
Digi XBee® 3 Zigbee® RF Module
242
Frame data fields Offset Description
Cluster ID 17
Set to the cluster ID that corresponds to the ZDO command being
sent.
0x0005 = Active Endpoints Request
18
Profile ID 19-20 Set to 0x0000 for ZDO transmissions (Profile ID 0x0000 is the
Zigbee device profile that supports ZDOs).
Broadcast radius 21
Sets the maximum number of hops a broadcast transmission can
traverse. If set to 0, the device sets the transmission radius to the
network maximum hops value.
Transmission options 22
All bits must be set to 0.
Data payload 23
The required payload for a ZDO command. All multi-byte ZDO
parameter values (u16, u32, 64- bit address) must be sent in little
endian byte order.
The Active Endpoints Request includes the following payload:
[16-bit NwkAddrOfInterest]
Note The 16-bit address in the API example (0x1234) is sent in little
endian byte order (0x3412).
24
25
Example
The following example shows how you can use the Explicit API frame to send an “Active Endpoints”
request to discover the active endpoints on a device with a 16-bit address of 0x1234.
Frame data fields Offset Example
Start delimiter 0 0x7E
Length MSB 1 0x00
LSB 2 0x17
Frame type 3 0x11
Frame ID 4 0x01
64-bit destination address MSB 5 0x00
6 0x00
7
0x00
8
0x00
9
0x00
10
0x00
11
0xFF
LSB12
0xFF
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