LinkFilter is a “troubleshooting” component that you can copy from the lonworks palette into a LonNetwork. Its default LinkFilterView provides debug-level messages related to Lonworks links.
To use, you must set one of the three “enable” properties to true, and also specify in the corresponding property the target filter, as follows:
-
Enable Subnet Node
If true, the filter applies to all but the device specified in that property, using
s/nnumerical syntax. For example:Subnet Node =
1/5 -
Enable Device
If true, the filter applies to all but the device named in Device Name property. For example:
Device Name =
Mnlrr2 -
Enable Selector
If true, the filter applies to all but the device(s) specified by the Selector property, using decimal notation for a selector number (note the Lon Link Manager uses decimal notation for selector numbers, but a Lon device’s Nv Manager lists selectors for nvs using hexadecimal numbers). For example:
Selector =
16
Collected debug records are then visible in the Link Filter View of the component, up the number configured in the Max Entries property (default is 1000), after which collection stops. Other boolean properties allow printing results To Standard Out of the station, or to Include Completion Events (those link events to which Niagara requires notification upon completition).
A “Clear Table” action is provided on a LinkFilter to clear collected records. This re-enables collection if the buffer had previously reached the “Max Entries” limit. If needed, you can copy multiple LinkFilter components in the network in order to configure differently. See LinkFilterView for related details.