LNS DDE Server

LNS DDE Server

The LNS DDE Server is a software package that allows any DDE or SuiteLink-compatible Microsoft Windows® application to monitor and control LonWorks® networks - without programming.


LNS is the open, standard operating system for LonWorks networks. Based on a powerful client/server architecture, LNS permits multiple installers or maintenance personnel to simultaneously access and modify a common database.



  • PC Requirements
    • Operating System
      Microsoft Windows XP or Windows 2000
    • Minimum Hardware
      Pentium 200; 128MB RAM; CD-ROM drive; mouse or other pointing devices; 20MB available hard drive space; LNS or IP network interface
    • Recommended Hardware
      Minimum with Windows XP, Pentium III 500, and 256MB RAM minimum
  • Database Requirements
    • Network database created with LNS network installation tool such as the LonMaker Integration Tool
    • LNS Compatibility LNS 3 client and server runtime included.
    • Compatible LNS network i.LON 1000 Internet Server, i.LONSmartServer, i.LON 100 Internet Server
    • i.LON 10interfaces and routers Ethernet Adapter, U10 and U20 USB Network Interface, PCLTA-20 PCI Card, PCLTA-10 ISA Card
    • PCC-10 PC Card, PCNSI ISA Card, and SLTA-10 Serial LonTalk Adapter


    • Network variables 4,096 maximum per host-based device; 254 maximum per Neuron® Chip- or Echelon Smart Transceiver-hosted device
    • Open networks 64
    • DDE client applications 8 maximum for each LNS network interface
    • Active LNS DDE Servers per network 254 maximum
    • Network variable updates per second 3000 maximum1
  • Function Description
    • Application devices 32,385 maximum2
    • Address table entries 32,768 maximum
    • Application device types 32,385 maximum
    • Channels 1,000 maximum
    • Domains 1 maximum
    • Network variable selectors 12,288 maximum (may be shared)
    • Routers 1,000 maximum
    • Simultaneous outgoing transactions 1,000 maximum
    • Simultaneous incoming transactions 1,000 maximum


  • Interfaces HMI and visualization applications installed with LNS tools
  • Reads and writes network variables, configuration properties, and application messages
  • Supports LonMark® functional blocks
  • Supports LonWorks IP-852 (ISO/IEC 14908-4) channels for high-bandwidth workstation connectivity.
  • Supports over 3000 updates per second with high performance LNS 3 runtime.
  • Remote access via LNS or NetDDE
  • Supports multiple clients and networks on the same PC or multiple PCs
  • Provides easy client set-up with a point browser and DDE copy/paste link support
  • Use with hundreds of programs that support the Microsoft DDE protocol
  • Supports WonderwareSuiteLink and FastDDE protocol



User guides and manuals

For technical support or information on how to buy, contact us directly.

General Inquiries Sales Contacts