14
Human Machine Interface
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the present level in the menu tree. This means, it cancels the present function
or the present menu selection and moves one step higher (back) in the menu tree.
•
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the LEDs when the start window is displayed.
•
Bring the HMI display into idle mode if pressed when the idle window is displayed
(
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function).
The E button mainly provides an
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function. It activates, for example, the
selected menu tree branch. Further it is used to confirm settings and to acknowledge
different actions.
The left and right arrow buttons have three functions:
•
Position the cursor in a horizontal direction, for instance, to move between digits in
a number during the parameter setting.
•
Move between leafs within the same menu branch.
•
Move between the confirmation alternatives (yes, no and cancel) in a command
window.
The up and down arrow buttons have three functions:
•
Move between selectable branches of the menu tree. This function also scrolls the
menu tree when it contains more branches than shown on the display.
•
Move between the confirmation alternatives in a command window.
•
Change parameter values in a data window
