XBee‐PRO®900HP/XBee‐PRO®XSCRFModules
©2014DigiInternationalInc. 82
Button presses may be simulated in software using the ATCB command. ATCB should be issued with a
parameter set to the number of button presses to execute. (i.e. sending ATCB1 will execute the action(s)
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 an API Node Identification Indicator frame (0x95).
Associate LED
The Associate pin (pin 15) can provide indication of the device's sleep status and diagnostic information. To
take advantage of these indications, an LED can be connected to the Associate pin as shown in the figure
above. The Associate LED functionality is enabled by setting the D5 command to 1 (enabled by default). If
enabled, the Associate pin is configured as an output and will behave as described in the following sections.
The Associate pin indicates the synchronization status of a sleep compatible node. On a non-sleep compatible
node the pin functions as a power indicator. The following table describes this functionality.
The LT command can be used to override the blink rate of the Associate pin. When set to 0, the device uses
the default blink time (500ms for sleep coordinator, 250ms otherwise).
Diagnostics Support
The Associate pin works with the commissioning pushbutton to provide additional diagnostic behaviors to aid
in deploying and testing a network. If the commissioning push button is pressed once the device transmits a
broadcast node identification packet at the beginning of the next wake cycle if sleep compatible, or
immediately if not sleep compatible. If the Associate LED functionality is enabled (D5 command), a device
that receives this transmission will blink its Associate pin rapidly for 1 second.
XBee-PRO 900HP I/O Line Monitoring
I/O Samples
The XBee modules support both analog input and digital IO line modes on several configurable pins.
Queried Sampling
Parameters for the pin configuration commands typically include the following:
4Any
Issues an ATRE to restore module parameters
to default values.
Sleep mode LED Status Meaning
0 On, blinking The device is powered and operating properly.
1, 4, 5 Off The device is in a low power mode.
1, 4, 5 On, blinking The device is powered, awake and is operating properly.
7 On, solid
The network is asleep or the device has not synchronized
with the network or has lost synchronization with the
network.
7, 8
On, slow blinking (500 ms blink
time)
The device is acting as the network sleep coordinator and is
operating properly.
7, 8
On, fast blinking (250 ms blink
time)
The device is properly synchronized with the network.
8 Off The device is in a low power mode.
8 On, solid
The device has not synchronized or has lost synchronization
with the network.
Button Presses
Sleep
Configuration and
Sync Status
Action
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