When devices cannot be automatically discovered – Echelon DM-21 Device Manager User Manual
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DM-20/21 Overview
When Devices Cannot Be Automatically Discovered
Devices cannot be discovered by the Device Manager if any of the following
conditions are true:
•
The device is already configured on a different domain from the domain
specified for the Device Manager. In this case, the Device Manager can only
discover the device if the device broadcasts a service pin message;
•
The device is configured on the correct domain but has the wrong subnet and
is on the far side of the router. In this case, the Device Manager cannot
discover the device, even if the device broadcasts a service pin message;
•
The router on that channel has not yet been discovered. Devices are not
discovered until the router on that channel is discovered first;
•
The device's location string does not match what was defined in the
LonMaker drawing.
To avoid these situations, make sure that all devices on a network managed by a
Device Manager module are unconfigured at installation time, and that any
routers that are supposed to be present are installed.