IEC_BACNET_COV_SUBSCRIPTION (STRUCT)ΒΆ
TYPE IEC_BACNET_COV_SUBSCRIPTION : STRUCT
This structure contains the data for the active subscription property in the device object.
- InOut:
Name
Type
Comment
recipient
The destination device which receives the notifications.
monitoredProperty
This contains the property identifier and optional array index for which a subscription is desired. If COV reporting is supported for a property that has an array datatype, it is a local matter to determine whether to support COV subscriptions for all elements of the array or only for particular elements in the array.
issueConfirmedNotifications
The issueConfirmedNotifications attribute indicates if the COV-server device shall initiate ConfirmedCovNotification or UnconfirmedCovNotification requests
timeRemaining
This contains the lifetime remaining for this subscription in seconds.
fCovIncrementPresent
If set to true the covIncrement parameter is valid.
covIncrement
This parameter, of type REAL, specifies the minimum change in the monitored property that will cause a COVNotification to be issued to subscriber COV-clients. This parameter is ignored if the datatype of the monitored property is not numeric. If the monitored property is Present_Value, its datatype is numeric, this parameter is not present, and the monitored object has a COV_Increment property, then the COV increment to use is taken from the COV_Increment property of the monitored object. The intent is to allow the subscriber to use a previously established COV increment from another subscription or to allow use of the COV_Increment property in the monitored object.