Issue
EBO acts as a BACnet server and a BACnet client send SubscribeCOVProperty to get value updates of specific property of a BACnet object, ex. present value, but EBO respond with "NOT_COV_PROPERTY".
Product Line
EcoStruxure Building Operation
Environment
- Building Operation Enterprise Server
- Building Operation Automation Server
- Building Operation Automation Server Premium
- Building Operation Automation Server Bundled
- Building Operation Edge Server - Standard
Cause
Specified property does not support COV notifications.
Resolution
EBO only supports SubscribeCOVProperty (DS-COVP-B) for the following properties and object types:
Status_Flags: AI, AO, AV, BI, BO, BV, MI, MO, MV, Loop, Trend Log
Event_State, Reliability, Out_Of_Service: AI, AO, AV, BI, BO, BV, MI, MO, MV, Loop
When a client attempts to use SubscribeCOVProperty for another property not listed above, the appropriate response is 'Not COV Property', as specified in BACnet standard.
When getting this response from EBO, the client is expected to automatically use another method to acquire the property value (either via COV subscription or polling). If the client is attempting to read Present_Value, then using SubscribeCOV would be the preferred mechanism.
