LG PQNFB17B0 - Manual (Page 85)

Report Function
A request for COV registration is accepted through the SubscribeCOV service.
1) Setting of Confirmed or Unconfirmed COV
This item is supported according to the BACnet Specifications.
2) Setting of the desired lifetime of the subscription
This item is supported according to the BACnet Specifications.
When COV notification is made at the time of status change, the difference between the registered
time and present time will be calculated. If the difference is greater than the registered lifetime of
the subscription, the subscription will be judged expired and deleted. Therefore, if a clock time
change is made, the lifetime of the subscription may differ from the value that has been set.
3) Memory after Interruption of Power Supply to System
This item is not supported. Registration information is not stored in the memory, and will be lost
when the power is turned off. According to the BACnet Specifications, It is not required to
guarantee preservation of subscriptions across power failure.
Supported COV service is shown in the follow table
COV(Change of Value) Notification
Service Object Product
On/Off (status) Binary Input object property Indoor, vent
Lock On/Off (status) Binary Input object property Indoor, vent
Mode Lock (status) Binary Input object property Indoor
Wind Flow Lock (status) Binary Input object property Indoor
Set Upper Temperature (status) Analog Input object property Indoor
Set Lower Temperature (status) Analog Input object property Indoor
Operation mode (status) Multistate input object property Indoor, vent
Swing (status) Binary Input object property Indoor
Filter Sign Binary Input object property Vent
Fan Speed (status) Multistate Input object property Indoor, vent
Set Room Temperature Analog value object property Indoor
Room Temperature Analog input object property Indoor
Alarm Binary Input object property Indoor, vent
Error Code Analog Input object property Indoor, vent
User mode Multistate input object property vent
Installation/Owner Manual 85
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