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In June, 2004, 17 years after the first BACnet meeting and back in
Nashville, William (Bill) Swan (a.k.a. "BACnet Bill") from Alerton began his four-year stint as committee chair. During his term the number of committee working groups grew to 11, pursuing areas such as support for lighting, access
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The development of the BACnet protocol began in June, 1987, in
Nashville, Tennessee, at the inaugural meeting of the ASHRAE BACnet committee, known at that time as SPC 135P, "EMCS Message Protocol". The committee worked at reaching consensus using working groups to divide up the task of creating a
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In June 2008, in Salt Lake City, Dave Robin from
Automated Logic Corporation took over the reins as the new committee chair after serving 4 years as vice chair. During Dave's term, 22 addenda were published for the 135-2008 standard and republished as 135-2010. Several addenda were published for
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The BACnet protocol defines a number of services that are used to communicate between building devices. The protocol services include Who-Is, I-Am, Who-Has, I-Have, which are used for Device and Object discovery. Services such as Read-Property and Write-Property are used for data sharing. As of
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In June 2012, in San
Antonio, Carl Neilson from Delta Controls took over the reins as the new committee chair after serving 4 years as vice chair. During Carl's term, 12 addenda were published for the 135-2012 standard and it was republished as 135-2016. Carl stepped down as chair in June 2015.
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BACnet
Testing Laboratories ("BTL") was established by BACnet International to test products to BACnet standards and support compliance testing and interoperability testing activities and consists of BTL Manager and the BTL working group ("BTL-WG"). The general activities of the BTL are:
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In June 2015, Bernhard Isler, from
Siemens, became chair after serving 3 years as vice chair and 4 years as secretary. During Bernhard's term, 10 addenda were published for the 135-2016 standard. Once addenda to 135.1-2013 was also published. Bernhard stepped down as chair in June 2018.
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standard. The working groups focused on specific areas and provided information and recommendations to the main committee. The first three working groups were the Data Type and
Attribute Working Group, Primitive Data Format Working Group, and the Application Services Working Group.
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In
January, 2017, a new BTL certification program was announced. Under this program, the work of the BTL and WSPCert (the European BACnet certification body) is merged. This merger forms a single point of testing for both the BTL Mark and the Certificate of Conformance.
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During Steve Bushby's four-year term as committee chair the BACnet standard was republished twice, in 2001 and 2004, each time with new capabilities added to the standard. The 2001 version featured, among other things, extensions to support fire / life-safety systems.
312:), lighting control, access control, and fire detection systems and their associated equipment. The BACnet protocol provides mechanisms for computerized building automation devices to exchange information, regardless of the particular building service they perform.
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and Delta
Controls soon followed suit. On July 12, 2017, BACnet reached a milestone with the issuance of the 1000th Vendor ID. Vendor IDs are assigned by ASHRAE and are distributed internationally. Those vendor identifiers can be viewed at
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The BTL also provides testing services through BACnet
Laboratories. The BTL Managers and BTL working groups of BACnet International administer the test Laboratories. All BTL-recognized BACnet Test Organizations are
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in 2003. The Method of Test for Conformance to BACnet was published in 2003 as BSR/ASHRAE Standard 135.1. BACnet is under continuous maintenance by the ASHRAE Standing Standard Project Committee 135.
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In January 2006 the BACnet Manufacturers Association and the BACnet Interest Group of North America combined their operation in a new organization called
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366:, served as the BACnet committee chairman until June, 2000, when he was succeeded by his vice-chair of 13 years, Steven (Steve) Bushby from
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719:"Standard 135-2016-- BACnet--A Data Communication Protocol for Building Automation and Control Networks (ANSI Approved)" (Document).
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In June 2018, Michael Osborne from Reliable Controls, became chair after serving 3 years as secretary and 3 years as vice chair.
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ANSI/ASHRAE 135-2016, the BACnet protocol defines 60 object types that are acted upon by the services.
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announced a BACnet product line for HVAC controls, from the operator's workstation to small
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The BACnet protocol defines a number of data link and physical layers, including
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control, energy utility/building integration, and wireless communications.
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for building automation and control (BAC) networks that use the
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Certifying the products per BACnet testing and BTL guidelines
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ANSI/ASHRAE 135-2016 specifies 60 standard object types:
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135-2010 and the standard was republished as 135-2012.
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Publishing the BTL Implementation Guidelines document
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BACnet became ASHRAE/ANSI Standard 135 in 1995, and
90:. Unsourced material may be challenged and removed.
16:
Communication protocol used for building automation
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672:Approving Testing Laboratories for BTL Testing
304:BACnet was designed to allow communication of
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857:
331:BACnet had an almost immediate impact on the
766:: CS1 maint: numeric names: authors list (
53:Learn how and when to remove these messages
2245:High efficiency glandless circulating pump
1494:Heating, ventilation, and air conditioning
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1471:
864:
850:
781:Newman, Michael (2013). "2.9.1 ALERTON".
270:Learn how and when to remove this message
252:Learn how and when to remove this message
150:Learn how and when to remove this message
2679:Mold growth, assessment, and remediation
871:
733:
736:"Minutes of the First SPC 135P Meeting"
666:Supporting the activities of the BTL-WG
427:, BACnet/IP, BACnet/IPv6, BACnet/MSTP,
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188:Please improve this article by adding
2552:Programmable communicating thermostat
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2674:Mechanical, electrical, and plumbing
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88:adding citations to reliable sources
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2535:Minimum efficiency reporting value
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2577:Standard temperature and pressure
2290:Packaged terminal air conditioner
1826:Passive daytime radiative cooling
1555:Heat pump and refrigeration cycle
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669:Maintaining the BTL test packages
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34:This article has multiple issues.
1646:Absorption-compression heat pump
1396:Factory Instrumentation Protocol
1277:Factory Instrumentation Protocol
959:Factory Instrumentation Protocol
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2868:Computer-mediated communication
2541:Normal temperature and pressure
1921:Vapor-compression refrigeration
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42:or discuss these issues on the
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2689:Testing, adjusting, balancing
2633:Building information modeling
2628:Building services engineering
2205:Ground-coupled heat exchanger
1733:Demand controlled ventilation
1681:Building insulation materials
837:Open Source BACnet Stack in C
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190:secondary or tertiary sources
2250:High-pressure cut-off switch
1801:Ice storage air conditioning
1722:Dedicated outdoor air system
787:. New York: Momentum Press.
301:16484-5 standards protocol.
7:
2593:Thermostatic radiator valve
2395:Thermostatic radiator valve
1906:Underfloor air distribution
1841:Radiant heating and cooling
1759:Energy recovery ventilation
1671:Automobile air conditioning
1535:Domestic energy consumption
1426:Unified Diagnostic Services
897:CC-Link Industrial Networks
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345:Automated Logic Corporation
335:controls industry. In 1996
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2742:Institute of Refrigeration
2623:Architectural technologist
2095:Electrostatic precipitator
944:Ethernet Global Data (EGD)
734:SPC 135P (June 26, 1987).
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1728:Deep water source cooling
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805:– via Google Books.
2842:Template:Home automation
2664:Kitchen exhaust cleaning
2360:Solar-assisted heat pump
1960:Air conditioner inverter
1739:Displacement ventilation
1630:Vapour pressure of water
1615:Thermal destratification
741:. ASHRAE. Archived from
2837:World Refrigeration Day
2684:Refrigerant reclamation
2613:Architectural acoustics
2557:Programmable thermostat
2489:Clean air delivery rate
2385:Thermal expansion valve
2300:Pressurisation ductwork
2210:Ground source heat pump
1651:Absorption refrigerator
1307:Automatic meter reading
1247:Power-system automation
2827:Glossary of HVAC terms
2789:Sick building syndrome
2669:Mechanical engineering
2380:Smoke exhaust ductwork
1811:Mixed-mode ventilation
618:Positive Integer Value
612:Notification Forwarder
540:DateTime Pattern Value
507:Binary Lighting Output
287:communication protocol
177:relies excessively on
2847:Template:Solar energy
2525:Intelligent buildings
2484:Carbon dioxide sensor
1871:Room air distribution
1691:Central solar heating
1421:Keyword Protocol 2000
531:Credential Data Input
525:CharacterString Value
2649:Duct leakage testing
2639:Deep energy retrofit
2583:Thermographic camera
2520:Infrared thermometer
1995:Air source heat pump
1944:Water heat recycling
1510:Air changes per hour
873:Automation protocols
825:BACnet International
437:multidrop serial bus
383:BACnet International
84:improve this article
2878:Building automation
2515:HVAC control system
2505:Home energy monitor
2479:Building automation
2265:Inverter compressor
1927:Variable air volume
1836:Passive ventilation
1806:Kitchen ventilation
1706:Constant air volume
1676:Autonomous building
1119:Building automation
969:FOUNDATION fieldbus
343:(VAV) controllers.
341:variable air volume
306:building automation
2778:Indoor air quality
2722:ASTM International
2659:Hydronic balancing
2436:Wood-burning stove
2315:Radiator reflector
2100:Evaporative cooler
1911:Underfloor heating
1896:Thermal insulation
949:Ethernet Powerlink
880:Process automation
830:2020-08-17 at the
645:Trend Log Multiple
633:Time Pattern Value
609:Notification Class
597:Multi-state Output
573:Large Analog Value
534:Date Pattern Value
388:2020-08-17 at the
364:Cornell University
355:2009-11-21 at the
350:the BACnet website
2873:Network protocols
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2771:Health and safety
2350:Scroll compressor
2305:Process duct work
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2055:Condensing boiler
1985:Air-mixing plenum
1881:Solar combisystem
1717:Cross ventilation
1520:Building envelope
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576:Life Safety Point
468:Access Credential
411:Protocol overview
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1229:
1224:
1219:
1214:
1209:
1204:
1199:
1194:
1189:
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1179:
1174:
1169:
1164:
1159:
1154:
1149:
1144:
1139:
1134:
1129:
1123:
1121:
1115:
1114:
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1111:
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1096:
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1079:
1078:
1073:
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1053:
1048:
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1033:
1028:
1023:
1018:
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983:
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981:
976:
966:
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946:
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936:
931:
926:
921:
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919:
914:
904:
899:
894:
889:
883:
881:
877:
876:
869:
868:
861:
854:
846:
840:
839:
834:
822:
820:BACnet website
815:
814:External links
812:
809:
808:
793:
773:
726:
710:
709:
707:
704:
703:
702:
697:
690:
687:
674:
673:
670:
667:
664:
661:
652:
651:BACnet testing
649:
647:
646:
643:
640:
637:
634:
631:
628:
625:
622:
619:
616:
613:
610:
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583:
580:
577:
574:
571:
568:
565:
562:
559:
556:
553:
550:
549:Elevator Group
547:
544:
543:DateTime Value
541:
538:
535:
532:
529:
526:
523:
520:
517:
514:
511:
508:
505:
502:
499:
496:
493:
490:
487:
484:
481:
478:
475:
472:
469:
465:
460:
459:BACnet objects
457:
429:point-to-point
412:
409:
317:
314:
278:
277:
260:
259:
174:
172:
165:
158:
157:
72:
70:
63:
58:
32:
31:
29:
22:
15:
9:
6:
4:
3:
2:
2890:
2879:
2876:
2874:
2871:
2869:
2866:
2865:
2863:
2848:
2845:
2843:
2840:
2838:
2835:
2833:
2830:
2828:
2825:
2823:
2820:
2818:
2815:
2813:
2810:
2809:
2807:
2803:
2796:
2793:
2790:
2787:
2785:
2782:
2779:
2776:
2775:
2773:
2769:
2763:
2760:
2758:
2755:
2753:
2750:
2748:
2745:
2743:
2740:
2738:
2735:
2733:
2730:
2728:
2725:
2723:
2720:
2718:
2715:
2713:
2710:
2708:
2705:
2704:
2702:
2700:organizations
2696:
2690:
2687:
2685:
2682:
2680:
2677:
2675:
2672:
2670:
2667:
2665:
2662:
2660:
2657:
2655:
2652:
2650:
2647:
2645:
2644:Duct cleaning
2642:
2640:
2637:
2634:
2631:
2629:
2626:
2624:
2621:
2619:
2616:
2614:
2611:
2610:
2608:
2600:
2594:
2591:
2589:
2586:
2584:
2581:
2578:
2575:
2573:
2570:
2568:
2565:
2563:
2560:
2558:
2555:
2553:
2550:
2548:
2545:
2542:
2539:
2536:
2533:
2531:
2528:
2526:
2523:
2521:
2518:
2516:
2513:
2511:
2508:
2506:
2503:
2501:
2498:
2496:
2495:Control valve
2493:
2490:
2487:
2485:
2482:
2480:
2477:
2475:
2472:
2470:
2467:
2465:
2462:
2460:
2457:
2456:
2454:
2448:
2442:
2439:
2437:
2434:
2432:
2429:
2427:
2424:
2421:
2418:
2416:
2415:Turning vanes
2413:
2411:
2408:
2406:
2403:
2401:
2398:
2396:
2393:
2391:
2390:Thermal wheel
2388:
2386:
2383:
2381:
2378:
2376:
2373:
2371:
2368:
2366:
2363:
2361:
2358:
2356:
2355:Solar chimney
2353:
2351:
2348:
2346:
2343:
2341:
2338:
2336:
2333:
2331:
2328:
2326:
2323:
2321:
2318:
2316:
2313:
2311:
2308:
2306:
2303:
2301:
2298:
2296:
2293:
2291:
2288:
2286:
2283:
2281:
2278:
2276:
2273:
2271:
2268:
2266:
2263:
2261:
2258:
2256:
2253:
2251:
2248:
2246:
2243:
2241:
2238:
2236:
2233:
2231:
2228:
2226:
2223:
2221:
2218:
2216:
2213:
2211:
2208:
2206:
2203:
2201:
2198:
2196:
2193:
2191:
2188:
2186:
2183:
2181:
2178:
2176:
2173:
2171:
2168:
2166:
2163:
2161:
2158:
2156:
2153:
2151:
2148:
2146:
2143:
2141:
2138:
2136:
2133:
2131:
2128:
2126:
2125:Fan coil unit
2123:
2121:
2118:
2116:
2113:
2111:
2108:
2106:
2103:
2101:
2098:
2096:
2093:
2091:
2088:
2086:
2083:
2081:
2078:
2076:
2073:
2071:
2070:Cooling tower
2068:
2066:
2063:
2061:
2058:
2056:
2053:
2051:
2048:
2046:
2043:
2041:
2038:
2036:
2033:
2031:
2028:
2026:
2023:
2021:
2018:
2016:
2013:
2011:
2008:
2006:
2003:
2001:
1998:
1996:
1993:
1991:
1988:
1986:
1983:
1981:
1978:
1976:
1973:
1971:
1968:
1966:
1963:
1961:
1958:
1957:
1955:
1951:
1945:
1942:
1940:
1937:
1934:
1931:
1928:
1925:
1922:
1919:
1917:
1916:Vapor barrier
1914:
1912:
1909:
1907:
1904:
1902:
1899:
1897:
1894:
1892:
1891:Solar heating
1889:
1887:
1886:Solar cooling
1884:
1882:
1879:
1877:
1874:
1872:
1869:
1867:
1864:
1862:
1861:Refrigeration
1859:
1857:
1854:
1852:
1849:
1847:
1844:
1842:
1839:
1837:
1834:
1832:
1831:Passive house
1829:
1827:
1824:
1822:
1819:
1817:
1814:
1812:
1809:
1807:
1804:
1802:
1799:
1797:
1794:
1792:
1789:
1786:
1783:
1781:
1778:
1776:
1773:
1771:
1768:
1766:
1763:
1760:
1757:
1755:
1752:
1750:
1747:
1745:
1742:
1740:
1737:
1734:
1731:
1729:
1726:
1723:
1720:
1718:
1715:
1713:
1710:
1707:
1704:
1702:
1701:Chilled water
1699:
1697:
1694:
1692:
1689:
1687:
1684:
1682:
1679:
1677:
1674:
1672:
1669:
1667:
1664:
1662:
1659:
1657:
1654:
1652:
1649:
1647:
1644:
1643:
1641:
1637:
1631:
1628:
1626:
1623:
1621:
1618:
1616:
1613:
1611:
1608:
1606:
1603:
1601:
1600:Sensible heat
1598:
1596:
1593:
1591:
1588:
1586:
1583:
1581:
1580:Noise control
1578:
1576:
1573:
1571:
1568:
1566:
1563:
1561:
1560:Heat transfer
1558:
1556:
1553:
1551:
1548:
1546:
1543:
1541:
1538:
1536:
1533:
1531:
1528:
1526:
1523:
1521:
1518:
1516:
1513:
1511:
1508:
1507:
1505:
1499:
1495:
1488:
1483:
1481:
1476:
1474:
1469:
1468:
1465:
1453:
1450:
1448:
1445:
1442:
1439:
1437:
1434:
1432:
1429:
1427:
1424:
1422:
1419:
1417:
1414:
1412:
1409:
1407:
1404:
1402:
1399:
1397:
1394:
1390:
1387:
1385:
1382:
1380:
1377:
1375:
1372:
1371:
1370:
1367:
1365:
1362:
1360:
1357:
1356:
1354:
1352:
1349:Automobile /
1347:
1341:
1338:
1336:
1333:
1331:
1328:
1326:
1323:
1321:
1318:
1316:
1313:
1312:
1310:
1308:
1304:
1298:
1295:
1293:
1290:
1288:
1285:
1283:
1280:
1278:
1275:
1273:
1270:
1266:
1263:
1261:
1258:
1257:
1256:
1253:
1252:
1250:
1248:
1244:
1238:
1235:
1233:
1230:
1228:
1225:
1223:
1220:
1218:
1215:
1213:
1210:
1208:
1205:
1203:
1200:
1198:
1195:
1193:
1190:
1188:
1185:
1183:
1180:
1178:
1175:
1173:
1170:
1168:
1165:
1163:
1160:
1158:
1155:
1153:
1150:
1148:
1145:
1143:
1140:
1138:
1135:
1133:
1130:
1128:
1125:
1124:
1122:
1120:
1116:
1110:
1107:
1105:
1102:
1100:
1097:
1095:
1092:
1091:
1089:
1087:
1083:
1077:
1074:
1072:
1069:
1067:
1064:
1062:
1059:
1057:
1054:
1052:
1049:
1047:
1044:
1042:
1039:
1037:
1034:
1032:
1029:
1027:
1024:
1022:
1019:
1017:
1014:
1012:
1009:
1007:
1004:
1002:
999:
997:
996:Honeywell SDS
994:
992:
991:HART Protocol
989:
987:
984:
980:
977:
975:
972:
971:
970:
967:
965:
962:
960:
957:
955:
952:
950:
947:
945:
942:
940:
937:
935:
932:
930:
927:
925:
922:
918:
915:
913:
910:
909:
908:
905:
903:
900:
898:
895:
893:
890:
888:
885:
884:
882:
878:
874:
867:
862:
860:
855:
853:
848:
847:
844:
838:
835:
833:
829:
826:
823:
821:
818:
817:
804:
800:
796:
794:9781606502907
790:
786:
785:
777:
769:
763:
748:on 2022-02-05
744:
737:
730:
722:
715:
711:
701:
698:
696:
693:
692:
686:
682:
680:
671:
668:
665:
662:
659:
658:
657:
644:
641:
638:
635:
632:
629:
626:
623:
620:
617:
614:
611:
608:
605:
602:
599:
596:
593:
590:
587:
584:
581:
578:
575:
572:
570:Integer Value
569:
566:
563:
560:
557:
554:
551:
548:
545:
542:
539:
536:
533:
530:
527:
524:
521:
518:
515:
512:
510:Binary Output
509:
506:
503:
500:
497:
495:Analog Output
494:
491:
488:
485:
482:
479:
477:Access Rights
476:
473:
470:
467:
466:
464:
456:
454:
450:
446:
442:
441:token passing
438:
434:
430:
426:
422:
417:
408:
405:
401:
397:
393:
391:
387:
384:
379:
375:
371:
369:
365:
360:
358:
354:
351:
346:
342:
338:
334:
329:
327:
322:
313:
311:
307:
302:
300:
296:
292:
288:
284:
274:
271:
256:
253:
245:
234:
231:
227:
224:
220:
217:
213:
210:
206:
203: –
202:
198:
197:Find sources:
191:
185:
184:
180:
175:This article
173:
169:
164:
163:
154:
151:
143:
132:
129:
125:
122:
118:
115:
111:
108:
104:
101: –
100:
96:
95:Find sources:
89:
85:
79:
78:
73:This article
71:
67:
62:
61:
56:
54:
47:
46:
41:
40:
35:
30:
21:
20:
2822:Fireproofing
2606:and services
2602:Professions,
2500:Gas detector
2468:
2400:Trickle vent
2375:Smoke damper
2370:Smoke canopy
2365:Space heater
2295:Plenum space
2230:Heating film
2110:Exhaust hood
2080:Dehumidifier
2020:Blast damper
2015:Barrier pipe
1990:Air purifier
1901:Thermosiphon
1780:Free cooling
1696:Chilled beam
1620:Thermal mass
1605:Stack effect
1590:Particulates
1570:Infiltration
1501:Fundamental
1131:
1016:MECHATROLINK
783:
776:
750:. Retrieved
743:the original
729:
714:
683:
681:accredited.
675:
654:
603:Network Port
588:Load Control
564:Global Group
513:Binary Value
504:Binary Input
498:Analog Value
492:Analog Input
474:Access Point
462:
418:
414:
406:
402:
398:
394:
380:
376:
372:
361:
330:
323:
319:
303:
282:
281:
266:
248:
239:
229:
222:
215:
208:
196:
176:
146:
137:
127:
120:
113:
106:
94:
82:Please help
77:verification
74:
50:
43:
37:
36:Please help
33:
2832:Warm Spaces
2474:Blower door
2452:and control
2450:Measurement
2431:Windcatcher
2405:Trombe wall
2345:Sail switch
2325:Refrigerant
2320:Recuperator
2195:Grease duct
2155:Freeze stat
2140:Fire damper
2010:Back boiler
1980:Air ionizer
1975:Air handler
1939:Ventilation
1791:Hybrid heat
1656:Air barrier
1575:Latent heat
1443:(SAE J2716)
1315:ANSI C12.18
1265:IEC 60870-6
1260:IEC 60870-5
954:EtherNet/IP
486:Accumulator
483:Access Zone
480:Access User
471:Access Door
326:ISO 16484-5
2862:Categories
2588:Thermostat
2510:Humidistat
2441:Zone valve
2410:TurboSwing
2285:Oil heater
2255:Humidifier
2185:Gas heater
2135:Fan heater
2105:Evaporator
2090:Economizer
2065:Compressor
1970:Air filter
1953:Components
1770:Forced-air
1666:Antifreeze
1639:Technology
1585:Outgassing
1525:Convection
1076:TTEthernet
1061:SERCOS III
924:ControlNet
706:References
636:Time Value
537:Date Value
212:newspapers
179:references
140:March 2018
110:newspapers
39:improve it
2698:Industry
2547:OpenTherm
2225:Heat pump
2220:Heat pipe
2170:Fume hood
2145:Fireplace
2050:Condenser
2000:Attic fan
1796:Hydronics
1384:NMEA 2000
1379:SAE J1939
1374:ARINC 825
1364:ARINC 429
1320:IEC 61107
1287:IEC 62351
1282:IEC 61850
1255:IEC 60870
1202:OpenTherm
1094:MTConnect
1021:MelsecNet
934:DirectNET
917:DeviceNet
803:909981984
752:August 7,
679:ISO 17025
642:Trend Log
558:Event Log
552:Escalator
501:Averaging
242:July 2012
45:talk page
2805:See also
2530:LonWorks
2464:Aquastat
2330:Register
2310:Radiator
1965:Air door
1765:Firestop
1565:Humidity
1540:Enthalpy
1530:Dilution
1515:Bake-out
1503:concepts
1297:PROFIBUS
1066:Sinec H1
1051:RAPIEnet
1046:PROFINET
1041:PROFIBUS
1006:INTERBUS
1001:HostLink
939:EtherCAT
828:Archived
762:cite web
695:LonWorks
689:See also
627:Schedule
519:Calendar
425:Ethernet
386:Archived
353:Archived
201:"BACnet"
99:"BACnet"
2604:trades,
2175:Furnace
2040:Chiller
1712:Coolant
1401:FlexRay
1369:CAN bus
1351:Vehicle
1192:LonTalk
1167:EnOcean
1137:BatiBUS
1104:OPC HDA
1071:SynqNet
1031:Optomux
1011:IO-Link
986:GE SRTP
912:CANopen
907:CAN bus
723:. 2016.
621:Program
528:Command
522:Channel
453:LonTalk
337:Alerton
316:History
226:scholar
124:scholar
2757:SMACNA
2717:ASHRAE
2537:(MERV)
2491:(CADR)
2469:BACnet
2422:(ULPA)
2275:Louver
2200:Grille
2075:Damper
2025:Boiler
1923:(VCRS)
1724:(DOAS)
1452:Cyphal
1340:Zigbee
1335:Modbus
1292:Modbus
1237:Zigbee
1232:Z-Wave
1197:Modbus
1132:BACnet
1127:1-Wire
1109:OPC UA
1099:OPC DA
1026:Modbus
801:
791:
784:BACnet
721:ASHRAE
700:Modbus
546:Device
451:, and
449:Zigbee
445:RS-485
433:RS-232
421:ARCNET
297:, and
291:ASHRAE
285:is a
283:BACnet
228:
221:
214:
207:
199:
126:
119:
112:
105:
97:
2797:(VOC)
2791:(SBS)
2780:(IAQ)
2737:CIBSE
2732:BSRIA
2635:(BIM)
2579:(STP)
2543:(NTP)
2165:Freon
1935:(VRF)
1929:(VAV)
1787:(HRV)
1761:(ERV)
1735:(DCV)
1708:(CAV)
1416:J1708
1411:J1587
1406:IEBus
1330:M-Bus
1162:DyNet
1147:CEBus
1142:C-Bus
746:(PDF)
739:(PDF)
639:Timer
567:Group
443:over
439:with
431:over
233:JSTOR
219:books
131:JSTOR
117:books
2752:LEED
2712:AMCA
2707:AHRI
2240:HEPA
2160:Flue
2085:Duct
1441:SENT
1436:MOST
1359:AFDX
1272:DNP3
1212:VSCP
1207:oBIX
1152:DALI
1036:PieP
964:FINS
929:DF-1
892:BSAP
887:AS-i
799:OCLC
789:ISBN
768:link
754:2017
591:Loop
582:Lift
561:File
368:NIST
333:HVAC
310:HVAC
295:ANSI
205:news
103:news
2762:UMC
2747:IIR
2727:BRE
2120:Fan
1447:VAN
1431:LIN
1389:FMS
1227:xPL
1222:xAP
1217:X10
1187:KNX
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