Meriam MFC5150 HART Communicator Manual - Manual (Page 17)

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Decision keys (hard key) are active when decision buttons appear on the screen. Their function is duplicated
by the decision buttons (touch screen button). Decision keys are also used for some auxiliary functions. See
sections 3.2 (Create shortcuts) for detail.
Navigation keys are used to move focus around the display and to select the item that is in-focus.
Information key provides on-screen help when available.
Numeric keys are used for text or numeric data entries.
Numeric keys are also used as accelerators to advance menus and initiate actions when indicated by the on-
screen icons.
The Fixed Function keys were discussed in Section 2.1 and 2.3
=
=
KEY BUTTON DECISION
CANCEL/ESC
ACCEPT
Move focus up
Move
focus left
Move
focus right
Move focus
to next pane
Move
focus down Select/Enter
in-focus
menu item