lonworks-LonTuningPolicy

This component provides a tuning policy for the Lon network, with standard framework tuning policy properties.

Tuning policy effects on Lon component behavior

The following table indicates the way the network tuning policy affects Lon component behavior.

Effects of tuning policy on Lon component behavior

Lon component Behavior
nci or cp No effect
nvo No effect
nvi with proxy (unbound) Min/max times and start/on/enable flags apply
nvi with proxy (bound) Min/max times and start/on/enable flags apply
nvi linked to nvo (unbound) Min/max times apply to update
nvi linked to nvo (bound) No effect
Figure 40.   Tuning policy properties
Image

To view these properties, expand Config > Drivers, right-click LonNetwork, click Views > AX Property Sheet and expand Tuning Policies and click Default Policy.

Tuning policy properties are defined in the Niagara Drivers Guide.

Lon-specific information about Max Write Time

If you link two devices, for example LON1 and LON2, the LON2 device does not receive updates per Max Write Time. However, when the LON1 value changes, updates go out. The updated value does not depend on Max Write Time of LON2 device. These devices are linked between each other but not through proxy points.

 NOTE: The Max Write Time is observed when the devices are linked through proxy points.  
The LON Device accepts the default values if it does not receive any updates within five minutes of linking. The updates are based on its receive heartbeat setting which is pre-programmed.

The MAX Write Time is one minute, which is sufficient enough to update before the received heartbeat expires.