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13 July 2024

  • 05:4705:47, 13 July 2024 diff hist +1,825‎ N Time ‎ Created page with "BACnet Time management is somewhat confusing. Here is a summary of a few of the issues. "Timezone" is defined as a combination of "Offset" + "Daylight Savings". So a "timezone" _includes_ a rule for calculating DST..... which makes it NOT the same as the colored bars on common timezone charts. e.g. https://www.timeanddate.com/time/map/ is _wrong_ (!) It is really displaying UTC offsets of the world. For example * the Native American city of "Navajo Nation" which ..." current

1 July 2024

24 June 2024

20 June 2024

11 June 2024

5 June 2024

26 May 2024

  • 03:4503:45, 26 May 2024 diff hist +200‎ N Specification ‎ Created page with "The official BACnet Specification can be found at the ASHRAE bookstore: * [https://store.accuristech.com/ashrae/standards/ashrae-135-2020?gateway_code=ashrae&product_id=2191852 BACnet Specification]" current

7 May 2024

21 April 2024

  • 16:5316:53, 21 April 2024 diff hist +270‎ N User talk:BACnetEd ‎ Created page with "Shared folder https://www.dropbox.com/scl/fo/6kladjjlgcrf0brvhukl6/AH0Kt7zzXuXVYoNCJAOIsJk?rlkey=1y5uknmtvpo5f2f1kxdbmaaos&dl=0 Shared zipfile https://www.dropbox.com/scl/fi/y7anoa86csu1ykizifs1p/Shared-HKPC-20240422T004810Z-001.zip?rlkey=8672mchur6ftdfjbra4fl2yec&dl=0" current

15 April 2024

14 April 2024

  • 14:3114:31, 14 April 2024 diff hist +312‎ N BACnet Datalinks ‎ Created page with "{| class="wikitable" |+ BACnet Datalinks |- ! Datalink !! Physical Medium !! Description !! Status |- | BACnet MS/TP || RS-485 || Master Slave / Token Passing || Active |- | BACnet/IP|| TCP/IP over Ethernet || || Active |- | PTP || RS-232 || || |- | Ethernet || Ethernet || Note- "Ethernet", not IP || Active |}"
  • 14:2714:27, 14 April 2024 diff hist +131‎ N BACnet Annexes ‎ Created page with "{| class="wikitable" |+ BACnet Annexes |- ! Annex !! Description |- | J|| BACnet/IP |- | YY || BACnet Secure Connect / BACnet/SC |}"
  • 14:2414:24, 14 April 2024 diff hist +137‎ N BACnet Addenda ‎ Created page with "{| class="wikitable" |+ BACnet Addenda |- ! Standard !! Addendum !! Description |- | 135-2016|| bj|| BACnet Secure Connect / BACnet/SC |}" current

13 April 2024

15 March 2024

13 March 2024

  • 09:1709:17, 13 March 2024 diff hist +1,009‎ N Binding ‎ Created page with "== Dynamic Binding vs Static Binding (wrt BACnet MS/TP devices) == On MS/TP, devices 0-127 are "Master" and 128-254 are "Slave". Master devices do token passing, and can Tx when some other node (normally the router) has sent them a message expecting a reply (DER, DNER, Test etc) OR when they have the Token. They can be discovered by broadcasting a Who-Is and observing the resulting I-Ams and recording their NN:MAC details for further use.. (Dynamic Binding) Slave dev..." current

5 March 2024

8 February 2024

14 January 2024

  • 07:5507:55, 14 January 2024 diff hist −20‎ Network Number ‎No edit summary current
  • 07:4907:49, 14 January 2024 diff hist +517‎ N Network Number ‎ Created page with "A BACnet network, formally, a "BACnet Internetwork" consists of multiple "BACnet Networks". Each BACnet Network is given a 16-bit Network Number (NN) to allow devices on the network to be addressed via their BACnetAddress. (A BACnetAddress is NN:BACnetMAC) The Network Number cannot be 0, or 65535. Refer to the specification "6.2.2.1 DNET, SNET, and Vendor ID Encoding" where it clarifies that the DNET cannot be 0 and the SNET cannot be 0 or 65535. The DNET can be 6553..."

9 January 2024

  • 09:5109:51, 9 January 2024 diff hist +1,204‎ N Failure Rate Analysis ‎ Created page with "Why is a 1% failure rate for a BACnet MS/TP network unreasonable. Let us consider a network that suffers a completely random 1% failure rate. This means 1 out of every 100 packets is going to fail. Let us also assume that poll rate for the site is a sustained aggregate (all devices) 100 polls per second. If a packet is lost due to a failure, then there are (another assumption) 3 retries. This is common. So, in order for a device to go "offline" we need 4 failures ''in..." current
  • 09:0809:08, 9 January 2024 diff hist −12‎ BACnet Protocol Wish List ‎No edit summary
  • 09:0809:08, 9 January 2024 diff hist +286‎ N BACnet Protocol Wish List ‎ Created page with "{| class="wikitable" |+ BACnet Wish List and status |- ! Item !! Description !! Status |- | Align Version with BTL records || There is no formalized link between the Application Version and Firmware Revision and the BTL certificate || ? |- | ReadRangeArray service || || |- | || || |}"
  • 09:0609:06, 9 January 2024 diff hist +32‎ Main Page ‎No edit summary
  • 08:1308:13, 9 January 2024 diff hist +7‎ BBMD ‎No edit summary current
  • 08:1208:12, 9 January 2024 diff hist +482‎ BBMD ‎No edit summary
  • 08:0908:09, 9 January 2024 diff hist +749‎ N BBMD ‎ Created page with "BBMD - BACnet Broadcast Management Device In the "Old Days" all BBMDs had to have identical BBMD Distribution Tables. (BDTs), and only one active BBMD per IP subnet. Now you are allowed multiple active BBMDs per subnet, but the BDTs must not have any identical peer IP entries (to avoid broadcast loops). ( J.4.3. "BBMD Concept", paragraph 2, of the spec ) So far so good. For full coverage of a given network, all subnets need a BBMD (or multiple) that point to every ot..."

3 January 2024

  • 07:1107:11, 3 January 2024 diff hist −14‎ BACnet Protocol Revision ‎No edit summary
  • 07:1007:10, 3 January 2024 diff hist +205‎ N BACnet Protocol Revision ‎ Created page with "{| class="wikitable" |+ Summary of changes made at different Protocol_Revisions |- ! Protocol_Revision !! Description of new features |- | 17 || Network Port Object |- | 18 || Example |- | 19 || Example |}"
  • 07:0707:07, 3 January 2024 diff hist −21‎ BACnet Objects Supported ‎No edit summary current
  • 07:0307:03, 3 January 2024 diff hist +569‎ N Minimum Protocol Revision ‎ Created page with "BTL will only accept devices for testing that meet the minimum protocol revision requirements. [https://bacnetinternational.org/news/minimum-protocol-revision-changes-january-1-2024/ Source] Summarized Here {| class="wikitable" |+ Minimum Protocol Revision Accepted by BTL |- ! Protocol Revision !! Specification Published !! Becomes minimum as of |- | 16|| 2019-10-04|| 2024-01-01 |- | 17 || || |- | 18|| 2020-10-30 || 2025-01-01 |- | 19|| 2022-01-18 || |- | 20 || ||..." current

29 November 2023

  • 08:0208:02, 29 November 2023 diff hist +146‎ N BACnet Properties ‎ Created page with "{| class="wikitable sortable" |+ BACnet Properties |- ! Property !! Description !! Comment |- | Object Name || || |- | Out of Service || || |}" current

27 November 2023

10 November 2023

  • 08:0108:01, 10 November 2023 diff hist +15‎ RS-485 Polarity ‎No edit summary current
  • 04:4404:44, 10 November 2023 diff hist +4,093‎ N BACnet Services Supported ‎ Created page with "{| class="wikitable sortable" |+ BACnet Services Supported |- ! Service !! Category !! Description !! Addendum !! Protocol_Revision |- | 0 || Alarm and Event Services || ACKNOWLEDGE_ALARM || || || |- | 1 || Alarm and Event Services || CONFIRMED_COV_NOTIFICATION || || || |- | 2 || Alarm and Event Services || CONFIRMED_EVENT_NOTIFICATION || || || |- | 3 || Alarm and Event Services || GET_ALARM_SUMMARY || ||..." current
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