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FS-8700-16 BACnet PTP Serial Driver Manual
Appendix B. Troubleshooting
Appendix B.1. Debugging a BACnet connection
If duplicate Object_Instances are configured in the FieldServer, the second call of the Instance will
overwrite the first one. This may cause a BACnet Object to be "lost."
If the Node Name configured on the BACnet Server Side of the configuration is not being indicated as the
Device Name on the BACnet SCADA system, then the FieldServer is not communicating with the SCADA
system. If the Device Object's name is being indicated, but the Present_Value shows question marks,
then it is likely that the Client side of the FieldServer is not communicating.
Extra memory is required to store Map Descriptors that have the active/inactive text parameters
specified. If the defaults are appropriate, do not specify these parameters. This will save memory and
allow more Map Descriptors to be created
When a BACnet_PTP connection is established, and the connection is broken abruptly (for instance a
power down), the DEVICE might not know immediately that this happened. If the FieldServer is then
powered up again, it might take several seconds (up to 60 seconds) before polling will start again.
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com
Tel: (408) 262-2299 Fax: (408) 262-9042 Toll Free: (888) 509-1970 email: support@fieldserver.com
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