Ladder Logic


    Ladder Logic is a tool for programming and monitoring sequencing logic in Woodward GAP-based controls.

    For a control to be programmable via Ladder Logic, the GAP application must have been programmed with Ladder Logic support. When the GAP program is compiled, it generates a file with a ".sym" extension (application_name.sym). This file must be available to the Ladder Logic program for it to be able to run.

     Here is what has changed since version 1.05:

    • It can now handle "modern" .sym files (with a relatively long path in the .sym file name)
    • It installs a copy of winsock.dll which works with its Ethernet calls
    • It has a new option (defaulted to FALSE) for using the "old IBM character set". I changed some of the extended characters LL uses to draw with, since my W2000 font didn't seem to have the right ones anymore. However, there is an ".ini" file option for switching back.
    • A "read-only" version is included in the installation.
    • Some of the version information now says "1.06" instead of "1.04".

    System Requirements:

    • Pentium® 133 MHz PC
    • 32 MB of RAM
    • Windows® 95, 98, NT 4.0, and 2000 or greater

    Installation Instructions:

    1. The first step in installing Ladder Logic is to download the file from this page. This file is an installation program that will step you through the installation process.
    2. After downloading this file, run it and follow the instructions on the setup dialogs.
    3. To use Ladder Logic, you will need to copy the GAP compiler generated ".sym" file to a directory that is accessible to the Ladder Logic program.



    Ladder Logic
    0.6 MB