Controller Information 
Part No.: 44200004 - Revision 2  SVP Controller Operation Manual   2-7
 
  2.3.5  Device Locking Menu 
Within this screen, the user can lock and unlock the SVP Controller.
   A single password is used to lock the controller from further 
configuration via HMI.
  Password is alphanumeric
• Only capital letters
• A-Z, 0-9, _, and ’.’
• No spaces
• Maximum of 6 characters
  Device remains unlocked until explicitly locked again
The "lock status" is shown at the status bar in the bottom right corner 
(padlock) as seen in the following screen.
 
Figure 2-8: Device Locking Menu
To lock the device, the user must enter a password.
Figure 2-9: Password Input Screen
To unlock the controller, the user must enter the password as entered 
during the locking of the controller. The password will be stored in  
non-volatile memory.
Note that the locking feature is not infallible as the password is visible to 
any user with a LAD connected to the controller. It is intended to keep 
the uninformed user from accidentally changing configuration settings. 
Changing the configuration parameters will not affect the performance