• The LonWorks protocol was created by the Echelon Corporation
• Standard Network Variable Types (SNVT) and Standard Configuration Profile Types (SCPT)
• All device manufactures must use these SNVTs and SCPTs to be considered LonMark® compliant
• This standard makes communication between several control manufactures possible
• Time Schedules, Trending, and Alarming are three areas that do not have a standard associated with them.
• Army Corp. of Engineers LonWorks Press release

 TAC Vista and TAC Xenta

• Vista IV is the TAC suite of LonWorks software:
• Vista Workstation
• Vista Server
• Menta (Graphical programming tool)
• System Plug-in (Links LNS DB with Vista DB)
• TAC Xenta is the Hardware Controller
  
• Programmable Controllers
• Xenta 280
• Xenta 300
• Xenta 400
• Application Specific Controllers
• Xenta 102 AX
• Xenta 102 ES
• Xenta 104 A
• Xenta 121 FC
• Xenta 121 HP
• Web Controllers
• Xenta 511
• Xenta 527
• Integration Controller
• Xenta 913
• LonMaker for Windows® is used as the Global binding tool.