security key siemens plc

[a0i0r]

hi,
i ask if possible to generate security key ( software one & generally installed on PC)
for siemens plc. this key allows communication between PC & PLC
thanks for ur responses & help

 

[ishratkamal]

if you need s-7 5.1 lecience key you can find it but the other version.

so if installed a lecience key to PC then can not use that another PC.

and i do,t know about the security of PLC.simply you code or Password it...

 

[a0i0r]

thx,
but the problem is that some one erase lisence key from the PC
& it impossible to establish communication between PC & PLC
it's neccessary to buy new license
thx again have a nice day

Added after 29 seconds:

thx,
but the problem is that some one erase lisence key from the PC
& it impossible to establish communication between PC & PLC
it's neccessary to buy new license
thx again have a nice day