Contains a list of BACnetCOV Subscriptions, each of which consists of a Recipient, a Monitored Property Reference, an Issue Confirmed Notifications flag, a Time Remaining value, and an optional COV Increment. This attribute provides a network-visible indication of those COV subscriptions active at any given time. Whenever a COV Subscription is created with the Subscribe COV or Subscribe COV Property service, a new entry is added to the Active COV Subscriptions list. Similarly, whenever a COV Subscription is terminated, the corresponding entry is removed from the Active COV Subscriptions list.
If the device supports execution of either Subscribe COV or Subscribe COV Property service, this attribute is required.
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