Hello HossamAzzaz,

There is nothing you can do. There is no way to violate password protection.

Do you mean my machine is dead ?

There's always a solution 
Couldn't I erase the memory or any solution to overcome this password issue????

 Hi,

HossamAzzaz

Couldn't I erase the memory or any solution to overcome this password issue????

 you can, afterwards all data including the user program is deleted from the CPU.

How to delete the password (load memory) it is discribed in the S7-1200 manual and many times in this forum as well.

Like in this post, there I also posted a link to the manual:

https://support.industry.siemens.com/forum/de/en/posts/how-to-reset-the-password-in-s7-1200-1214c-dcdcrly/270829

But as said above, also the user program including hw config currently on the cpu will be deleted.
A password reset without the loss of the online program is not possible.

regards

sancruz