Emerson Rosemount 644 with HART Protocol, Reference Manual

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Local Operator Interface
July 2018
Reference Manual
00809-0200-4728, Rev SA
Local Operator Interface
100
C.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.
C.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