Replace retained tags with DTI Struct tag...

[ORSO2001]

dears All,

I will have to modify an old project where I used a lot of retained tags (was my first project and I was not very skilled...for sure worst than now 😁 )...I want to replace the retained tags with a struct referred at a DTI...then save this on the SD.

my question is...if I will upload a new project , the same but with more UDFB-tags etc, the retained tags that are used at the moment still contain the same value or will be reset?

just to know if I can do this without problem, because I will also update the PLC version, or if I have to think something to save the retained tags and upload these later.

thanks

[Ofir]

Hi,

As I understand you are going to  add more tags/structs to the project. In this case the existing retained tags should not lose their values.

Anyway I suggest to backup your project and the retained tags using UniLogic or UniApps.

If you are upgrading firmware then I highly recommend to backup the retained tags.