Digi International Inc XBEEPRO2 Manual Do Utilizador

Network commissioning is the process whereby devices in a mesh network are discovered and configured for operation. 
The XBee modules include several features to support device discovery and configuration. In addition to configuring 
devices, a strategy must be developed to place devices to ensure reliable routes.

To accommodate these requirements, the XBee modules include various features to aid in device placement, 
configuration, and network diagnostics. 

XBee/XBee-PRO ZB modules can be configured locally through serial commands (AT or API), or remotely through 
remote API commands.   API devices can send configuration commands to set or read the configuration settings of 
any device in the network.

For a mesh network installation to be successful, the installer must be able to determine where to place individual 
XBee devices to establish reliable links throughout the mesh network. 

A good way to measure the performance of a mesh network is to send unicast data through the network from 
one device to another to determine the success rate of many transmissions. To simplify link testing, the 
modules support a loopback cluster ID (0x12) on the data endpoint (0xE8). Any data sent to this cluster ID on 
the data endpoint will be transmitted back to the sender. This is shown in the figure below:

The configuration steps to send data to the loopback cluster ID depend on the firmware type.

To send data to the loopback cluster ID on the data endpoint of a remote device, set the CI command value to 
0x12. The SE and DE commands should be set to 0xE8 (default value). The DH and DL commands should be set 
to the address of the remote (0 for the coordinator, or the 64-bit address of the remote). After exiting command 
mode, any received serial characters will be transmitted to the remote device, and returned to the sender.