Mix APL version in a project

Hi,

Good question...

You can migrate projects in two ways: 

- Update with utilization of new functions: Manual ; updating APL blocks to newest version

- Update without utilization of new functions: Manual ;using the old APL blocks.

However, I don't think this is released. It is allowed to use different block versions in a multiproject, as long as the projects contain the same block version. This is also the case for using APL and Non-APL library->You may not use those blocks in one project, but it is allowed to use in a multiproject, containing several projects (and thus a PLC for each project).

You can get problems with Generating Module Drivers...Using old module drivers on newer block version can get you problems...Also, using V8.1 module drivers with old blocks can get you problems too.

Apart from that, you can however use mixed operation for faceplates....see manual: Utilization WITH new functions, page 110.

When not updating the APL blocks, you can also use the old block icons. In this case, you must use template file: @PCS7TypicalsAPLV7.pdl.

In order to use this file, you have to delete the @PCS7TypicalsAPLV8.pdl file (since both files contain the same block icons, only different in style. Prerequisite is that you only have V7.1 blocks in your project. 

I suggest you delete the newly added V8.1 blocks in your project and only use V7.1 blocks. This way, you are sure you won't get any problems. In this case, you have done a migration without utilization of new blocks.