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Adding an I/A Series R2 BACnet Binary Output object for a Functional Devices RIBTW2401B-BC RIB relay module causes the device to drop offline (down status).

Issue

Adding an I/A Series R2 BACnet Binary Output object for a Functional Devices RIBTW2401B-BC RIB relay module causes the device to drop offline (down status).  The output window displays the following error.

ERROR: Unable to convert class tridium.foundation.dataspecies.DsEnum from ASN type 9
tridiumx.bacnet.asn.ASNException E_BACNET_ASN_INVALID_TAG {tagNumber 9 current tag 0}
BACnetDevice: RIB01 is now down

Environment

I/A Series R2, BACnet, Functional Devices RIBTW2401B-BC

Cause

The Functional Devices RIBTW2401B-BC RIB relay module appears to have an issue in processing the device status while polling priorityArray points.  The device responds incorrectly to the UNC's status message request. The problem is related to the BACnet stack of the device. 

Resolution

The only workaround is to disable the device ping mechanism in the I/A Series R2 UNC's BACnet service (Device Status tab) and reboot the UNC. Make sure to backup when requested to save the changes.

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Last update:
2 weeks ago
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