Configuring tuning policy
The cloud connector uses tuning policies to govern the update of point values to
Prerequisites: You are using
By changing a tuning policy, you are changing the configuration for all points that reference this policy. This makes it convenient
to specify different policies for different groups of similar points, which can then be configured together.
Perform the following steps:
- To locate the proxy point tuning policies, expand , right-click NiagaraCloudNetwork, select and expand Tuning Policies.The Niagara Cloud Network Property Sheet opens with the Cloud Tuning Policy Map expanded.
Three default policies are available:
- Default Policy
- Priority
- Background
- To modify a tuning policy, expand or click one of the policies.The policy properties open.
The screen capture shows the default tuning policy as it is configured out-of-the-box.
Require Change for Updatedefaults totrue. If the value of the point has not changed, the driver excludes the point from the batch point update (learn point). This helps to minimize the amount of data sent. To send the point value even if it has not changed, set this tofalse, but be aware that this may vastly increase the traffic sent toNumeric Change Tolerancemay help in configuring numeric points for batch update. This property includes only significant value changes as defined by the tolerance value.Subscribe Source Pointconfigures the freshness of subscribed points. If you export points that are integrated through another driver such as BACnet, those points may not be subscribed at all times. Points that exist to be used on graphics are only subscribed when the graphic is being viewed. At other times, their value is stale, as indicated by theirStatus. To always export totrue. Permanently subscribing a large number of points by setting this property totruemay significantly impact driver performance. Many drivers use a lower-bandwidth bus like twisted-pair EIA-485, which may not be able to handle the larger number of messages required to update all the integrated points.
- Configure tuning policy properties and click Save.