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Yes they should. Every BACnetObject has the ability to support COV. You will need to enable the mixin though. I've not actually implemented a server but these classes should get you going on how to use it: com.serotonin.bacnet4j.obj.AnalogObjectTest com.serotonin.bacnet4j.obj.mixin.CovReportingMixin

@BigKING please create a new thread and reference this one. This one was solved over twelve years ago! Fox

Can someone help me with above ?

@Krish1998 it would help if you would be very specific as to what you are try to do and supply some code examples. However you might be able to use a DeviceEventListener See: https://github.com/MangoAutomation/BACnet4J/blob/master/src/main/java/com/serotonin/bacnet4j/event/DeviceEventListener.java And an example use here: https://github.com/MangoAutomation/BACnet4J-samples/blob/master/src/test/java/com/infiniteautomation/bacnet4j/npdu/ip/BacnetIpListenerDiscoveryExample.java

@Charlie-Holleran Do you have bacnet4j api, thank you very much

Hi, I use Yabe simulater, the subscriveCOV run OK. Maybe you can try it!

Hi Nuc_sun, have you find the answer? I think the topic title may make people confused. You can run BACnet4J on Linux physical machine, it runs OK! The problem you encountered is BACnet4J run on Linux in virtual machine. The network settings of the virtual machine is not suitable for BACnet4J, I think!

My Problem is fixed with bacnet4j 5 thank you. It is possible again to add proprietary values: final ObjectPropertyTypeDefinition o = new ObjectPropertyTypeDefinition( ObjectType.lifeSafetyZone, true, new PropertyTypeDefinition( PropertyIdentifier.forId(MY_SPECIAL_VALUE), CharacterString.class, true)); ObjectProperties.getObjectPropertyTypeDefinitions(ObjectType.lifeSafetyPoint).add(o); final ObjectPropertyTypeDefinition o2 = new ObjectPropertyTypeDefinition( ObjectType.lifeSafetyPoint, true, new PropertyTypeDefinition( PropertyIdentifier.forId(MY_SPECIAL_VALUE), CharacterString.class, true)); ObjectProperties.getObjectPropertyTypeDefinitions(ObjectType.lifeSafetyPoint).add(o2); in this example above MY_SPECIAL_VALUE is a list (SequenceOf<CharacterString>)