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Figure 25: Transmitting poll request to parent
Since a parent can only buffer data up to 30 seconds, an end device should only sleep for more than
30 seconds if it will not receive RF data when sleeping. The ST parameter can be set to keep the end
device awake after transmitting data to receive RF data. The commissioning push button can be used
to force the end device to wake for 30 seconds. See
page 54 for details.
Transmitting data to End Devices
To reliably transmit data to an end device, SP should be set the same on the end device, the end
device's parent, and on the device that is initiating a transmission to the end device. SP determines
the transmission timeout on the sender, the time to buffer the received packet on the parent, and
the time to sleep on the end device.
Remote configuration commands
The API firmware has provisions to send configuration commands to remote devices using the
Remote Command Request API frame; see
send commands to a remote module to read or set command parameters.
The API firmware has provisions to send configuration commands (set or read) to a remote module
using the Remote Command Request API frame; see
Remote commands can be issued to read or set command parameters on a remote device.
Sending a remote command
To send a remote command, the Remote Command Request frame should be populated with the 64-
bit address and the 16-bit address (if known) of the remote device, the correct command options
value, and the command and parameter data (optional). If a command response is desired, the
Frame ID should be set to a non-zero value.
Applying changes on remote
When remote commands are used to change command parameter settings on a remote device,
parameter changes do not take effect until the changes are applied. For example, changing the BD
parameter will not change the actual serial interface rate on the remote until the changes are
applied. Changes can be applied using remote commands in one of three ways:
•
Set the apply changes option bit in the API frame
•
Issue an AC command to the remote device
•
Issue a WR + FR command to the remote device to save changes and reset the device.
XBee ZNet 2.5 / XBee PRO Znet 2.5 OEM RF Modules Product Manual
Network commissioning and diagnostics
API operation
on page 59. This API frame can be used to
Remote AT command request
Remote configuration commands
on page 66.
on
46
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