Configure network DDE

Network DDE (Dynamic Data Exchange) provides information-sharing capabilities by opening two one-way pipes between applications. Network DDE is an extension of DDE that can be used between two computers across the network.
Windows NT Network DDE services are not automatically started. They must be set up and started.
IMPORTANT:
You must have Windows NT administrator privileges to complete these procedures.
  1. Start the Control Panel and double-click the
    Services
     icon.
  2. Select
    Network DDE
     from the list.
  3. Click
    Startup
     to open a
    Service
    dialog box.
  4. Enable Automatic in the
    Startup Type
     section, and click
    OK
     to return to the
    Services
    dialog box.
  5. Click
    Start
    .
  6. Select
    Network DDE DSDM
     from the list.
  7. Click
    Startup
    .
  8. Enable Automatic in the
    Startup Type
     section, and click
    OK
     to return to the
    Services
    dialog box.
  9. If Services is not running, click
    Start
    .
  10. Click
    Close
     to exit the Services dialog box and return to Control Panel.
  11. Select the Run menu item to display a Run dialog box.
  12. Type
    DDESHARE.EXE
     in the Command Line combo box. A DDE Shares dialog box opens.
  13. Select
    DDE Shares
     by double-clicking the icon, or select Shares menu item. A DDE Shares dialog box opens.
  14. Click
    Add a Share
    . A DDE Share Properties dialog box opens.
  15. In the
    Share Name
     box, enter a name of your choice to remember this NetDDE share. The name should be one that identifies
    RSLinx Classic and the specific PLC, and data available through the RSLinx Classic topic you want to use.
  16. Enter the
    Application
     and
    Topic
     within the Static boxes. For RSLinx Classic, the application is RSLINX and the DDE/OPC topic you want to use.
  17. Select the
    Allow start application
     check box and click
    OK
     to return to the
    DDE Share Properties
     dialog box.
  18. Highlight the DDE share name you just entered, and click
    Trust Share
     to open a
    Trusted Share Properties
     dialog box.
  19. Select the
    Start Application Enable
     and
    Initiate to Application Enable
     check boxes.
  20. Click
    Set
    , and click
    OK
     to return to the
    DDE Shares
     dialog box.
  21. Close the
    DDE Shares
    dialog box.
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