VDV Flag

The VDV Flag indicates whether a device is successfully connected to a network and can communicate properly. It shows the connection status, especially in environments using PowerLine Communication (PLC), like smart meters or home automation systems. If the VDV Flag is set, it means the device has a good, stable link to the network. If it's not set, the device might have connectivity issues or no network access at all. Essentially, it’s a quick way to check if the device is online and functioning correctly within the communication system.