Wayne,
Device discovery helps eliminate some of the typing of manual entry of Insteon devices. To use it, you set PowerHome to discovery mode and then visit each of your Insteon devices. Press and hold either the "on" button or "set button until the device goes into linking mode. As soon as the device goes into linking mode, tap the "on" or "set" button to cancel linking and then move onto the next device. PowerHome will be listening for the enrollment request and will automatically add the device to it's database (device type, address, a default ID) and will start querying for status, local on level, and internal links. Not exactly automatic, but about the best I can do with the Insteon standard :angry:
Link discovery...PowerHome will automatically query each device in the background and discover all existing links. You can continue to use tap-tap linking to link devices together and PowerHome will eventually discover the links. The really cool feature is that once PowerHome has discovered all existing links, you can say goodbye to tap-tap linking and create, modify, and maintain links solely from within PowerHome. You can add devices to any of the PLC's 254 groups using just PowerHome as well as maintain groups between devices. You still have to crosslink devices for things like multi-way switch circuits (to keep the status lights synchronized), but this can all be done within PowerHome.
As long as a device controls at least one other device, you can get local status sensing. Even if your device doesnt control any other devices, PowerHome has a report to show you "orphans" so you can setup a quick link between it and the PLC (software linking within PowerHome) so you can get status notification when the switch is locally controlled.
Say you have a device go bad and you need to switch it out. The link maintenance could be a nightmare. While PowerHome doesnt have a built in function for this currently, with it's database backend and built in link controls, a macro could be put together in a few minutes to automate this process. Let me know if you're interested and I'll whip it up.
Dave.