Does the O3 support Bulk Data Exchange (BDE)?

Depending on your firmware version, the BDE (a Delta proprietary BACnet data exchange mechanism) may be supported.

If you are using firmware version 2.x, BDE is not supported.

If you are using firmware version 4.16 or later, BDE is supported. 

The BDE object requires enteliWEB to configure. For more details, refer to the BDE help topic in the enteliWEB documentation.