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.

Key Features

  • Interfaces HMI and visualization applications installed with LNS tools
  • Reads and writes network variables, configurationproperties, 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

Tech Specs

PC Requirements


Operating System

Microsoft Windows XP or Windows 2000

Minimum Hardware

Pentium 200; 128MB RAM; CD-ROM drive; mouse or other pointing device;  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

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