Siemens · Recovery walkthrough

Unlock Siemens S7-1200 / S7-1500 FB Password

3:29 · Published Dec 2025

Platform: Siemens

Recover or remove Function Block (FB) know-how protection passwords on Siemens S7-1200 and S7-1500 PLCs. If you'd rather have it handled, I provide manual Siemens recovery support — done personally, with nothing sold or downloaded from this site.

What this walkthrough covers

  • Function Block (FB) password
  • Know-how protection
  • S7-1200 and S7-1500 projects
  • TIA Portal workflow

Supported software & hardware

  • Siemens S7-1200 and S7-1500 CPUs (and S7-1500F safety variants)
  • TIA Portal (STEP 7 Professional, V13 and later)
  • Function Block (FB), Function (FC), Organization Block (OB), Data Block (DB) know-how protection

Who this is for

  • You forgot or lost the FB password on your own S7-1200 / S7-1500 project
  • A previous engineer left and no password record was kept
  • You've inherited a locked TIA Portal project you legally own
  • You need to open or edit a know-how-protected FB for maintenance

Locked out of a Siemens project you own?

Send the software and version, and a short description of what you're locked out of. The work is manual and done personally — no tools sold, no downloads.

Email for recovery support More on YouTube
⚠ For legitimate recovery, maintenance and authorized access only. By contacting me you confirm you own, or are authorized to service, the equipment in question.

Questions

Which products and versions does this cover?

It applies to Siemens S7-1200 and S7-1500 CPUs (and S7-1500F safety variants), TIA Portal (STEP 7 Professional, V13 and later), Function Block (FB), Function (FC), Organization Block (OB), Data Block (DB) know-how protection.

Who does the recovery?

I do, personally. Every job is manual — it isn't automated with a tool and it isn't resold to anyone else.

Do I have to own the equipment?

Yes. I only help owners and authorized maintainers regain access to their own projects — in line with the authorized-use-only policy on the channel.

Do you sell a tool or a download for this?

No. There are no tools for sale and no downloads on this site. Recovery is a manual service I perform or guide you through.