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Alternatively, it is here: "C:\Program Files (x86)\CODESYS\APInstaller\APInstaller.GUI.exe"

Problem 6

I cannot use the newest version Vizualisation AddOn to work with an older PLC Application.

Or, I cannot use the newest version of a particular AddOn to work with an older PLC Application.

Solution 6

Essentially, if you want to use Visualisation Profile Version 4.1.0.0 in your project, you need to have exactly Visu Addon 4.1.0.0 installed as the latest Visu Addon.  Specifically not 4.2.0.0, nor 4.0.0.0.

If you want to use version 4.0.0.0 or earlier (eg 3.5.16.10) in your project, you need to have exactly Visu Addon 4.0.0.0 installed as the latest Visu Addon.  Specifically not 4.1.0.0.

This is because, through modularisation, the latest IDE no longer is tied down to a specific version of a package.  So for maximum compatibility, the user can now be assured that when working with a project at a particular Visu version profile, they are using exactly the matching addon for this.

So what are the options for the user:

1. Always upgrade to the latest version.  If you open an older project, update the Visualisation version profile to the latest, and you can now use the old project.  The problem here is, you will not be able to go online to an exwithout downloading a change.
2. Use CODESYS Installer to prepare another installation, which uses instead the other versions of the Addons.  Note that even though another installation is listed, in practice this is just one 'installation' of the CODESYS IDE on the hard drive, with each one loading a different set of plugins.

In future, when you open a project which was created with Visualisation Addon 4.1.0.0, in a Installation which has Visualization Addon 4.2.0.0, you will be prompted to either switch to an existing or create a new installation, which uses the correct Addon Version.

The same compatibility rules now hold true for almost all addons - if you want to use a previous project, you either use exactly the same addon versions, or you can choose upgrade the project to use the latest addons.  An upgrade may require either an online change, or a complete download.

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