S7-1200 on line download.

Data block modified values

Yes

No

Data block modified structure

No

No

New data block

Yes

Yes

Data block deleted

Yes

Yes

Downloading individual blocks

Yes

Downloading all blocks

No

Adding or deleting OBs

No

Adding or deleting DBs, FCs or FBs

Yes

Changing block interfaces for FBs

No

Changing block interfaces for FCs

Yes

Changing the structure of a DB or an instance DB

No

Changing the hardware configuration

No

Changing the retentivity settings of bit memories and DBs

No

Changing the program code of FC, FB or OB

Yes

Changing the attributes of OBs

Yes

Adding comments

Yes

Adding input, output or bit memory areas

Yes

Changing tag names

Yes

Maximum number of blocks that can be downloaded for the device used in "RUN" not exceeded

Yes