Schneider Unity Pro - PLC vs Local Init Values & Current Tag Values

[MB1234]

Hi All,

Can anyone explain to me:

1) What are 'PLC initialisation values",
2) What are 'Local initialisation values', and
3) Why I am getting a warning in unity pro 'the initialisation values in the PLC are different from those of the local application (see link below):

http://imgur.com/a/lH9fSZF

According to the link below:

https://www.schneider-electric.com/en/faqs/FA197405/

The tags with 'save' checked are the ones that are saved in the offline program when 'update initial values with current values' is performed.

So, are 'PLC initialisation values' simply the current tag values for 'SAVE' tags and are 'Local initialisation values' the data stored in the offline program for these tags?

Why do they have to make this so difficult to understand? A PLC is a PLC, every PLC I have used (Siemens, Rockwell) it's easy and essential to upload the current tag values into the backup. Why is this so hard for me to understand?

Thankyou!