Continuum BACnet / BBMD Issue

Issue

Cannot open Calendars on several BACnet Networks.

Product Line

Andover Continuum

Environment

  • Continuum 1.9X
  • BCX 4040, B38XX controllers
  • Windows XP

Cause

BBMD Sub Net Mask Configuration.

Resolution

There is two configuration methods allowed in a BBMD Subnet mask. One hop configuration and a Two hop configuration.

See Chapter ANNEX J.Y.3.1

  1. One Hop  Mask  255.255.255.0   /24
  2. Two Hop Mask  255.255.255.255  /32

ASHRAE Standard 135 2008

ISIN   1041-2536