Reference Manual

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Turbo PMAC/PMAC2 Software Reference

Turbo PMAC On-line Command Specification 385

matches the existing password correctly, Turbo PMAC accepts it as a valid command, and the host

computer has access to the protected programs until the Turbo PMAC is reset or has its power cycled.

If the command does not match the existing password correctly, Turbo PMAC returns an error (reporting

ERR002 if I6=1 or 3), and the host computer does not have access to the protected programs. The host

computer is free to attempt to match the existing password.

There is no way to read the current password. If the password is forgotten and access to the protected

programs is required, the card must be re-initialized with the $$$*** command, which clears all program

buffers as well as the password. Then the programs must be reloaded, and a new password entered.

Example:

{Starting from power-up/reset with a null password}

LIST PLC 1 ; Request listing of protected program

P1=P1+1 ; PMAC responds because there is no password

RETURN

PASSWORD=Bush ; This sets the password to "Bush"

LIST PLC 1 ; Request listing of protected program

P1=P1+1 ; PMAC responds because password has been

RETURN ; matched by changing it.

$$$ ; Reset the card

LIST PLC 1 ; Request listing of protected program

ERR002 ; PMAC rejects because password not entered

PASSWORD=Reagan ; Attempt to enter password

ERR002 ; PMAC rejects as incorrect password

PASSWORD=BUSH ; Attempt to enter password

ERR002 ; PMAC rejects as incorrect (wrong case)

PASSWORD=Bush ; Attempt to enter password; PMAC accepts as correct password

LIST PLC 1 ; Request listing of protected program

P1=P1+1 ; PMAC responds because password matched

RETURN

PASSWORD=Clinton ; This changes password to Clinton

LIST PLC 1 ; Request listing of protected program

P1=P1+1 ; PMAC responds because password has been

RETURN ; matched by changing it.

$$$ ; Reset the card

PASSWORD=Clinton ; Attempt to enter password

; PMAC accepts as correct password

LIST PLC 1 ; Request listing of protected program

P1=P1+1 ; PMAC responds because password matched

RETURN