Obvius BACnet - Manual (Page 47)

BACnet Server for AcquiSuite Page 47 of 52
CVS:bacnet/Documentation/BACnet_Users_Guide.doc
Stale Time >= (APDU_Timeout * Number_of_APDU_Retries)
8.7.2 How the AcquiSuite Signals Communications Failures
The BACnet Server for AcquiSuite will signal communications failures by updating the Status_Flags and
Reliability properties of each data point’s Analog Input or Binary Value object, and by setting the
System_Status property of each Device Object.
These properties may be monitored by the Controller. For instance, on the Tridium JACE, these
properties may be “added” in the same way you would discover and “add” the Present_Value of an input
(see below). These properties can then be used to “gate” your control logic.