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Online and Offline Comparison of Projects

Offline comparison: Comparing the loaded project with a solution stored on your computer

Note
Read and observe the instructions given in the topic "Safety-related Project Modifications" before comparing projects.

  1. Open the project to be compared (project A) with another project (B).
  2. Select 'Project > Compare Projects' and choose the project to be compared (project B) with the present project (A).

    The comparison is then started automatically.

  3. The Project Comparer workspace appears displaying the results. Detected differences are listed in the PROJECT COMPARE window at the bottom of the workspace.

    Double-clicking an entry in the PROJECT COMPARE window opens the comparative view showing the differences side by side. You can browse through the differences list with the window's toolbar buttons.

  4. To end the comparison, select the menu item 'Project > End Project Compare' in the compare workspace. The workspace closes and you return to the PLCnext Engineer interface.

Online comparison: Comparing the loaded project with the project sources stored to the controller

Note
Read and observe the instructions given in the topic "Safety-related Project Modifications" before comparing projects.

With this procedure, the project loaded in PLCnext Engineer is compared with the project that was last written to the controller (designated as "online project" here).

Precondition is that the project sources have been included in the download when writing the project to the controller.

Proceed as follows:

  1. Open the controller Cockpit by double-clicking the controller icon in the PLANT.

    Make sure that the correct controller port (to which the LAN cable is connected) is set a target.

  2. Select the 'Connect/Disconnect' command in the Cockpit toolbar or from the context menu of the controller in the PLANT or in the ONLINE STATE window:

    This command is also available

    • in the context menu of the controller in the PLANT,
    • in the context menu of the controller in the ONLINE STATE window.

    If required, log on to the controller.

  3. Select the menu item 'Project > Compare Online Project'.

    The comparison is then started automatically.

  4. The Project Comparer workspace appears displaying the results. Detected differences are listed in the PROJECT COMPARE window at the bottom of the workspace.

    Double-clicking an entry in the PROJECT COMPARE window opens the comparative view showing the differences side by side. You can browse through the differences list with the window's toolbar buttons.

  5. To end the comparison, select the menu item 'Project > End Project Compare' in the compare workspace. The workspace closes and you return to the PLCnext Engineer interface.

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