> For the complete documentation index, see [llms.txt](https://docs.monokot.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.monokot.io/tags-and-devices/siemens-connectivity/access-to-dbs-area-in-s7-1200-s7-1500.md).

# Access to DBs area in S7-1200/S7-1500

To access a DB in S7-1200/S7-1500 some additional setting PLC-side are needed:

* Only global DBs can be accessed
* The optimized block access must be turned off
* The access level must be “full” and the “connection mechanism” must allow GET/PUT

The setup of access to DBs in TIA Portal V15 is described below.

Right click on the DB and select *Properties...* item.

![](/files/glqD8frBgigp2JGxNwDf)

Go to *Attributes* and uncheck *Optimize block access*.

![](/files/P1nluyLnrqor2wky6vdr)

Right click on the CPU and select menu item *Properties…*

![](/files/lFOBMAz16MTofPKXEOZJ)

Select *Protection & Security* and select *Full access (no protection)* as shown below.

![](/files/NVePyiEfIwqQqMqgHqAY)

Go to *Connection mechanisms* and check *Permit access with PUT/GET communication from remote partner*.

![](/files/UK052F8XmJhqd7WmM8ZJ)

For changes to take effect, download hardware and program to the PLC.