Issue
A third party BACnet browser is trying to query Xdriver points. It sends ReadPropertyMultiple with a Property Identifier of "all (8)". The CX9680 responds with an error. Is this property supported by the BACnetIP Xdriver?
Environment
BACnet IP Xdriver
Cause
The ReadPropertyMultiple property identifier: all (8) is not supported by the Xdriver.
Resolution
The ReadPropertyMultiple property identifier: all (8) is not supported by the Xdriver. The Xdriver only supports the following properties:
Value | Access | BACnet Property |
85 | R/W | Present-Value |
111 | R | Status-Flags |
36 | R | Event State |
81 | R | Out of Service |
In the Xdriver manual the Quick Reference table in Appendix A indicates "Property 1-25 Service Limit". This is only for the DeviceSelf object and determines the number of asynchronous BACnet messages the Xdriver can send at a time. It effects the speed of polling (1 = slowest, 25 = fastest).