Send BACnet WhoIs service request to a device or
multiple devices, and wait for responses.  
Displays any devices found and their network information.

device-instance:
BACnet Device Object Instance number that you are trying to
send a Who-Is service request.  
The value should be in the range of 0 to 4194303.  
A range of values can also be specified by using a minimum value and a maximum value.

Examples:
To send a WhoIs request to Device 123, use the following command:
bacwi 123
To send a WhoIs request to Devices from 1000 to 9000:
bacwi 1000 9000
To send a WhoIs request to all devices, use the following command:
bacwi -1
