Data Payload Format - Digi XBee Zigbee Mesh Kit User Manual

Data payload format

The data payload field of the Explicit Addressing and Explicit Rx Indicator frames must follow the frame structure defined for ZDP and ZCL frames.
Note All multi-byte values must be sent/received in little endian byte order.
ZDP frame structure:
n
Transaction sequence number
1
A single byte to identify the ZDP transaction so a response
frame can be related to the request frame.
ZCL frame structure:
n
ZCL Header ZCL Payload
Frame control Manufacturer code
1 2
Byte to define the Two bytes field
command type and specifying the Zigbee
other flags. manufacturer code.
For more information about the frames structure, refer to the Zigbee specification and the Zigbee Cluster Library available at http://www.Zigbee.org.
Transaction data
2
A variable length field containing data for the individual ZDP transaction. Its
format and length depends on the command being transmitted.
ZCL Header
Transaction sequence number
3
Byte to identifying the transaction
so a response frame can be related
to the request frame.
Transaction sequence
number Transaction data
... n
ZCL
ZCL Payload Header ZCL Payload
Command Frame Frame
ID payload control
4 5 ...
Byte to A variable length field with data specific to
specify the individual command types.
cluster
command.
ZCL Header
Manufacturer
code
6