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LNS DDE Server

LNS DDE Server provides simple LON compatibility with Windows DDE client.
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 LON networks – without programming.

Typical applications for the LNS DDE Server include interfaces with HMI applications, data logging and trending applications, and graphical process displays.

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

LNS DDE Server
  • Interfaces HMI and visualization applications installed with LNS tools
  • Reads and writes network variables, configuration properties, and application messages
  • Supports LonMark™ functional blocks
  • Supports LON 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

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.LON SmartServer, i.LON 100 Internet SmartServer
  • i.LON 10 interfaces 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 maximum

Function Description

  • Application devices 32,385 maximum
  • 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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