Publication 2711-UM014B-EN-P
5-2 Running Applications
Screen Security
Access to some application screens (including the terminal
configuration screens) may be restricted. Secured screens require you
to enter a password before the screen is displayed. It is the
responsibility of the application designer to provide operators with
required passwords.
Other screens may allow an authorized operator to select and change
the passwords of operators at the terminal.
Push Button Operation
Screen push buttons function like mechanical push buttons.
Push buttons have a variety of appearances. Push buttons may change
their inner text, fill pattern, border or shape when pressed (each state
assigned different attributes).
The following are common to most push buttons:
• All push buttons are momentarily disabled (0.5 second) after a
screen change. This prevents multiple buttons, in the same
location on different screens, from being pressed inadvertently.
• All push buttons must be released on the previous screen before
buttons can be pressed on the new screen.
• Momentary push buttons are assigned a hold time. The hold
time maintains the pressed state so that each change of state can
be read by the controller at least once. The hold time varies
between 0 and 1 second depending on the configured setting.
ON
OFF
Push Button
OFF
ON
STOP
SLOW
Toggle Foreground/
Background
Border, White Fill
No Border,
Diagonal Fill
Border, White Fill
Ellipse, White Fill
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