Can't say that I do. Can you elaborate? The 90-30 has 5 levels of password protection built in. Could you be talking about the 'OEM Key'? That's the fifth level of protection, and it hides the ladder logic from anyone who doesn't have the password.
Are you looking for something to crack a password set by someone else or trying to set a password that can't be unlocked by Cimplicity ME?