Emerson Rosemount 644, Reference Manual

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Reference Manual
00809-0200-4728, Rev RA
Appendix D: Local Operator Interface (LOI)
April 2015
Local Operator Interface (LOI)
D.3 Timeout
The LOI in standard operation will Time Out and return to the home screen after 15 minutes of
inactivity. To re-enter into the LOI menu press either button.
D.4 Saving and canceling
The Save and Cancel functionality implemented at the end of a series of steps allows the user to
save the change or exit the function without saving any of the changes. The way these functions
are shown should always look as follows:
Saving
Whether you’re choosing a setting from a list of choices or entering digits or text the first screen
shall show “SAVE?” to ask the user if they want to save the information just entered. You can
select the cancel function (choose NO) or the save function (choose YES). After the save
function is selected, “SAVED” shall appear on the screen.
Saving a setting:
Saving text or values:
Canceling
When a value or text string is being entered into the transmitter via the LOI and the function is
canceled, the LOI menu can offer the user a means to re-enter the value without losing the
information entered. Examples of a value being entered are the Tag, Damping, and Calibration
values. If you do not want to Re-Enter the value and desire to continue canceling, select the NO
option when prompted.
Canceling
D E G C
S A v e ?
D E G C
S A v e D
R
NO YES
005.0000 005.0000
S A v e ? S A v e D
R
NO YES
005.0000
005.0000
S E C
RE --
E N T E R ?
S A v e ?
005.0000
S A v e D
R
NO
NO
YES
NO YES
YES
YES