Improving performance by adding a tuning policy
Tuning policies configure how a network evaluates write requests (for example, requests to write to writable proxy points)
and the acceptable freshness of read requests. They associate with one of three poll rates in a network’s Poll Service. A
BACnet network benefits from multiple tuning policies, especially if you enable multiple BACnet network ports.
Prerequisites: An appropriate palette is open.
Configuring BACnet proxy points to reference different tuning policies under different networks (often with vastly different
performance capabilities) allows you to improve overall performance. For example, points under a BACnet MS/TP network would
likely use different tuning policies than those under a BACnet IP network.
Perform the following steps:
- Do one of the following:
- Right-click an existing policy and choose Duplicate from the shortcut menu.
- Drag a BacnetTuningPolicy from the palette to the network’s Tuning Policies container.
- Give the policy a name.
The screen capture shows the expanded view of one of five different tuning policies.
CovPolicyNoStartWrite configures COV (Change of Value) data collection. If you have client BacnetDevices that provide support for COV notifications, you can add at least one tuning policy that has its
Use Covproperty set totrue(possibly with other adjustments). - Double-click the policy in the Nav tree, edit policy properties and click Save.