Siemens LOGO!, Manual

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Operating the device
4.1 Operating touch devices
Basic Panels
Operating Instructions, 04/2012, A5E02421799-03
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Operating function keys
The function keys can be assigned global or local functions:
●
Function keys with global function assignment
A function key with global function assignment always triggers the same action on the
HMI device or in the PLC, regardless of the currently displayed screen. An example of
such an action is the activation of a screen, or the closing of an alarm window.
● Function keys with local function assignment
A function key with local function assignment is screen-specific and is therefore only
effective within the active screen.
The function assigned to a function key can vary from screen to screen.
The function key can be assigned only a single function, either global or local, within a
screen. Local function assignments override global function assignments.
4.1.2 General functions of the screen keyboard
The following keys are available on the screen keyboard of all Basic HMI devices with touch
functionality:
Cursor left
Cursor right
Delete character
Cancel input
Confirm input
Displaying infotext. This key only appears when an infotext has been configured for the
operating element.