VT50 – Structure and function
3.4.3 ESC button
The ESC button is pressed to abort inputs and functions. The modifications made
are not accepted and the previous valid value is maintained.
Note
The ESC button can only be used if, on the display on the operating screen, there
is an ESC button operable via the touchscreen. The function of button and push
3.4.4 Scroll wheel (
Comfort)
The scroll wheel is used for the direct, quick input of target values, as well as for
browsing through the elements in the lists:
Turn the scroll wheel to
the right
• In an input dialogue for numerical values
increases the value.
• In a list changes to the next element.
Turn the scroll wheel to
the left
• In an input dialogue for numerical values
decreases the value.
• In a list changes to the previous element.
Pressing the scroll wheel • The changed value in an input dialogue is
adopted.
• A highlighted list element is selected.
3.4.5 Function keys
Six function keys (F1-F12) are arranged to the right and left of the display. By
actuating a function key the function displayed next to the function key is
performed.
3.4.6 Acknowledgement button
The acknowledgement button (ACK) is used to confirm error messages.
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