Network commissioning and diagnostics Commissioning pushbutton and associate LED
Digi XBee® 3 Zigbee® RF Module
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Use CB (Commissioning Pushbutton) to simulate button presses in software. Issue a CB command
with a parameter set to the number of button presses you want executed. For example, sending CB1
executes the actions associated with a single button press.
The node identification frame is similar to the node discovery response frame; it contains the device’s
address, node identifier string (NI command), and other relevant data. All API devices that receive the
node identification frame send it out their serial interface as a Node Identification Indicator frame -
0x95.
Associate LED
The Associate pin provides an indication of the device’s network status and diagnostics information.
Connect an LED to the Associate pin as shown in the figure in Commissioning pushbutton and
associate LED. Enable the Associate LED functionality the D5 command to 1 (enabled by default). If the
Associate pin is enabled, it configured as an output.
Joined indication
The Associate pin indicates the network status of a device. If the device is not joined to a network, the
Associate pin is set high. Once the device successfully joins a network, the Associate pin blinks at a
regular time interval. The following figure shows the joined status of a device.
The associate pin can indicate the joined status of a device. Once the device has joined a network, the
associate pin toggles state at a regular interval (∆t). Use the LT command to set the time.
The LT command defines the blink time of the Associate pin. If it is set to 0, the device uses the default
blink time (500 ms for coordinator, 250 ms for routers and end devices).
Diagnostics support
The Associate pin works with the commissioning pushbutton to provide additional diagnostics
behaviors to aid in deploying and testing a network. If the commissioning push button is pressed once,
and the device has not joined a network, the Associate pin blinks a numeric error code to indicate the
cause of join failure. The number of blinks is equal to (AI value – 0x20). For example, if AI = 0x22, two
blinks occur.
If the commissioning push button is pressed once and the device has joined a network, the device
transmits a broadcast node identification packet. If the Associate LED functionality is enabled (D5
command), a device that receives this transmission will blink its Associate pin rapidly for 1 second.
The following image illustrates the behavior pressing the commissioning button press once when the
device has not joined a network, causing the associate pin to blink to indicate the AI Code where: AI =
# blinks + 0x20. In this example, AI = 0x22.
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