96 Rockwell Automation Publication 2711R-UM001I-EN-E - February 2023
Chapter 4 Secure the Terminal
Security at Runtime The user is prompted to enter a user name and password when logging into
the terminal, either by using the login button or when accessing a secured
screen.
If the login is successful, the user has access to the application. The application
writes the access right and user name of the logged in user to the current
access right and current user name tags.
If the user name and password are invalid, the operation is aborted and an
error message is generated.
When the user presses the logout button, the application clears the current
access right tag and current user name tag.
After logging in, the user can move between secured and unsecured screens
for which the user account has access rights. The user is not prompted to
reenter the password.
If the user moves to a secured screen that he is not authorized to access, he is
prompted to enter a user name and password. If the correct user name and
password are entered, the user is granted access. Otherwise, access is denied
and a warning message is displayed.
Idle Mode Timeout
If the application does not receive user input within the specified idle timeout,
the terminal goes into Idle mode. User input includes key presses, touch screen
presses, external mouse, or keyboard input.
If the active screen is unsecured, the screen remains active.
If the active screen is a secured screen:
• The current user is logged off.
• The current access right tag is cleared.
• The application changes to the startup screen.
Resetting the Terminal
After a terminal is reset, the application:
• Displays the startup screen whether the last displayed screen was
secured or unsecured.
• Enables security if it was previously disabled.
• Retains changed passwords.
• The current user tag and current user rights tag is cleared when the
terminal resets.
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