Page 30 - 251119_BJ_ME-Journal_14_digital
P. 30
BACnet Interest Groups News
News from SSPC 135:
New Leadership, Standards Progress,
and Global Alignment
The ASHRAE Standing Standard Project
Committee 135 (SSPC135), which governs
the BACnet protocol, continues its mission
to develop and maintain interoperable
and future-proof solutions for building
automation systems.
At the most recent plenary meeting on May
2nd, 2025, in Fort Lauderdale, Florida, the
committee elected a new leadership team:
Chair: Scott Ziegenfus (Hubbell Lighting)
Vice Chair: Salvatore Cataldi (BELIMO
Automation AG)
Secretary: Nathaniel Benes (University of Scott Ziegenfus, Chairman of ASHRAE SSPC 135
Nebraska)
This leadership transition follows the successful
tenure of Coleman Brumley, whose contributions
were formally recognized by the committee.
Key milestones since the last report include the
publication of ASHRAE 135.1-2025, which intro-
duces several critical updates and test corrections.
The public review of Addendum 135-ct is
complete. It defines a way to convert BACnet
data into RDF (Resource Description Framework),
a W3C standard that works like a universal
dictionary for machines. This makes BACnet
information usable by semantic systems such as
digital twins and analytics. Salvatore Cataldi (BELIMO Automation AG)
A particularly significant development is the
approval of ASHRAE 223P for its first public
review. This proposed standard adds a semantic
interoperability layer for describing equipment
interconnections – a move that has been
warmly received by both ISO TC205 and CEN
TC 247 as an essential complement to existing
communication standards.
Nathaniel Benes (University of Nebraska)
30 BACnet Middle East Journal 14 11/25
