Description
The PermanentSubscribeExt extension forces the permanent subscription of a point. The subscription is the status of a point requesting an update of its value (and therefore in the context of a communication driver, it is the state that causes the point to trigger read / update requests on the network). This status is triggered automatically in Niagara when a point is displayed in a view, linked to another point or has an alarms or history extension for example. In some cases (especially when using queries for reports), the subscription is not triggered, so a regular update of values is needed, this extension is intended for that.
Implementation
- Add the PermanentSubscribeExt extension to a point.