Summary
This is the extension responsible for sending points events and react to external messages.
Implementation
- Open the IoTHubConnector palette and drag and drop the IoTHubPointExt to your point.
- Edit the device query to point to your device that contains the Device Extension. by default it's the parent device but you can change it to use any other component that contains a device extension.
Properties
- Status : Point status.
- Fault Cause : The error message field.
- Enabled: Enable the point extension
- Device Query : The device query which contains the device extension to be used by the PointExt. if you are using relations the device query is ignored and you should use relations for others as well.
- Trigger On Value Change Only : Send event on value change only else ignore the value.
Advanced Config
- Inhibit Time On Start : Time to wait before start sending message on station started, this value is always takes priority.
- Min Send Time : The minimum amount of time before allowing sending events.
- Max Send Time : The maximum amount of time before force event sending, should be greater then min send time.
- Change Tolerance : The minimum delta value to trigger a change (only applicable for Numeric values)
Actions
- Initialize : Register the point and initialize the connection with iot hub.
- Disable : Disable the extension.
- Clean : Unregister the point.
Fault Causes
- No Device Found : Make sure that your query points to a component that contains at least on device extension.
- Cannot Send Message : Make sure the the extension is working and the connector too.
- Extension Is Disabled : Try to enable your device extension.