Meeting in Dallas
- Hello BACnet Lighting Working Group!
We are scheduled to meet in the City View Room 5 (H4) of the Adam's Mark
Hotel in Dallas, from Noon – 2 PM on Friday, January 26, 2007.
Current agenda item:
Come to Dallas prepared to debate and decide on a specific
recommendation for writing to a group of objects. Specifically to decide
about choosing which one(s) of the Multiplexer object (STK-004),
WriteGroup Service(DMF-032), or WriteGroupMode Service and Control Group
object (DMF-030) we recommend to SSPC 135, or to consolidate the three
ideas into a single proposal. The problem that the SSPC has with
accepting all three is that they all basically address the same issue of
speed-on-the-wire and grouping, so only one idea (WriteGroup or
Multiplexer) should go forward. David Fisher wrote a comparison of the
three ideas in DMF-037. I wrote a comparison of four lighting control
techniques which touches on the three ideas in STK-020. All documents
are posted at the BACnet Lighting Applications YahooGroups site, and are
also available on the BACnet FTP server at ftp.bacnet.org in the
"2007-01 Dallas/LA-WG/" folder.
Please post any additional agenda items to this list, or bring them up
during our agenda review at the meeting.
For those that would like to stay for other working group
meetings, appended is the rest of the working group and SSPC schedule.
SSPC 135 Working Group Meeting Schedule
All meeting rooms are in the Adam's Mark Hotel and the hotel's
conference center. Details of the meeting location can be found at the
Meeting room locations are indicated in parentheses: H indicates the
hotel and C the hotel conference center, these are followed by the floor
Check the ASHRAE meeting schedule for any last minute room changes.
Thursday, January 25
8 AM – Noon LSS-WG City View Room 7 (H4)
Noon – 5 PM TI-WG "
Friday, January 26 *
8 AM – 5 PM BTL/TI-WG t.b.a.
8 AM – 9 AM MSTP-WG Majestic Boardroom 7 (H37)
9 AM – 1 PM XML-WG "
8 AM – Noon LSS-WG City View Room 5 (H4) (Special SSPC session**)
Noon – 2 PM LA-WG "
Saturday, January 27
8 AM – 4 PM SSPC 135 Majestic Boardroom 5 (H37)
4 PM – 5 PM WN-WG "
6:30? PM Group Dinner tbd
Sunday, January 28
8 AM – 10 AM WN-WG San Antonio B (C3)
10 AM – 12 N NS-WG "
1 PM – 3 PM IP-WG "
3 PM – 5 PM OS-WG "
8 AM – 10 AM UI-WG Houston B (C3)
10 AM – 3 PM AP-WG "
Monday, January 29
8 AM – 12 N SSPC 135 San Antonio B (C3)
* Please note that due to limited meeting times on Friday, no lunch
break is scheduled.
** SSPC 135 is requested to attend this session to review object drafts
to be presented in the plenary.
- Hello BACnet Lighting Working Group!
We met in the City View Room 5 (H4) of the Adam's Mark Hotel in Dallas,
Texas, from Noon – 2 PM on Friday, January 26, 2007. Here are the
minutes from the meeting. The minutes are also filed with SSPC-135
BACnet committee as LA018.doc
BACnet - Lighting Applications Working Group
January, 26 2007
LA-WG proposal discussions:
Lighting Output Object - DMF-011
Out for 45 day publication public review starting in February, 2007
[Note: SSPC-135-2004 Addendum I].
Binary Output Timeout Property - DMF-019
Revised – To be discussed further this week at SSPC. [Note: DMF-019
voted out for publication public review on 29-January-2007 and included
in SSPC-135-2004 Addendum I]
Famous Times - DMF-028
Started as simple DMF-05 and revised several times
Has now been pushed back to BACnet Objects and Services Working Group.
Discussion about whether to go back to simple version
Tripped Status - STK-015
Included in Lighting Object [Note: STK-015 voted out for publication
public review on 29-January-2007 and included in SSPC-135-2004 Addendum I]
HOA Status - STK-018
In BACnet Objects and Services Working Group.
Multiplexer object (STK-004), WriteGroup Service(DMF-032)
WriteGroupMode Service and Control Group object (DMF-030)
David Fisher presented DMF-037- Comparison of STK-004, DMF-032, and
DMF-030 illustrating the pros and cons of each. Issue of speed on the
wire was discussed and need for an unconfirmed broadcast that can affect
multiple objects with different values simultaneously.
Since current proposals serve similar functions, group was tasked with
selecting or consolidating into one proposal. Discussion ensued.
Decision to revise DMF-032:
Create new "Channel Object" based on Multiplexer object. Channel objects
would then reference other objects.
Retain WriteGroup Service as unconfirmed broadcast to Channel object
instances that belong to specific "group" referenced in service.
WriteGroup service would contain list of Channel instances and values.
David has concern over making value a type "any." Would prefer more
David agreed to make modifications and submit revised proposal in
DMF-032. STK-004 and STK-030 may then be withdrawn [Note: Formally
withdrawn from SSPC-135 discussion on 29-Jan-2007].
During week of April 23-27 – Germantown, Maryland. [Note: This date may
be changed to the first week of May 2007 so that we can resolve any
public review comments received from the completion of the SSPC-134-2004
Addendum I public review which completes at the end of April 2007.]
Participants - Affiliation
David Fisher - Polarsoft
Coleman Brumley - Polarsoft
Barry Bridges - Sebesta Bloomberg & Assoc.
David Shike - TAG
Bob Johnson - Siemens Building Technology
Chris Chapman - Trend Control Systems
Howard Coleman - Trane
Gary Ditzler - Lumisys/ALC
Cliff Copass - Johnson Controls
Robert Hick - Leviton Lighting Systems
Stuart Donaldson - Alerton
Steve Treado - NIST
Craig Gemmill - Tridium
Pete Baselici - The WattStopper
Steve Karg - Lithonia Lighting
Meeting minutes submitted by Robert Hick. Edited by Steve Karg.