Number Entry - Emerson Rosemount 644 Reference Manual

Local Operator Interface (LOI)
March 2021
LOI password
An LOI password can be entered and enabled to prevent review and modification of device
configuration via the LOI. This does not prevent configuration from HART
control system. The LOI password is a four-digit code that is to be set by the user. If the
password is lost or forgotten the master password is "9307". The LOI password can be
configured and enabled/disabled by HART communication via a Field Communicator, AMS
Device Manager, or the LOI.
C.1

Number entry

Floating-point numbers can be entered with the LOI. All eight number locations on the top
line can be used for number entry. Refer to
floating-point number entry example for changing a value of "-0000022" to "000011.2"
Table C-2: LOI Number Entry
Step
1
2
3
4
5
6
7
8
9
10
126
Table 2-2
Instruction
When the number entry begins, the left
most position is the selected position. In
this example, the negative symbol, "-", will
be flashing on the screen.
Press the scroll button until the "0" is
blinking on the screen in the selected
position.
Press the enter button to select the "0" as
an entry. The second digit from the left will
be blinking.
Press the enter button to select "0" for
second digit. The third digit from the left
will be blinking.
Press the enter button to select "0" for the
third digit. The fourth digit from the left will
now be blinking.
Press the enter button to select "0" for the
fourth digit. The fifth digit from the left will
now be blinking.
Press scroll to navigate through the
numbers until the "1" is on the screen.
Press the enter button to select the "1" for
the fifth digit. The sixth digit from the left
will now be blinking.
Press scroll to navigate through the
numbers until the "1", is on the screen.
Press the enter button to select the "1" for
the sixth digit. The seventh digit from the
left will now be blinking.
Reference Manual
00809-0200-4728
®
or through the
for LOI button operation. Below is a
Current position (indicated
by underline)
-0000022
00000022
00000022
00000022
00000022
00000022
00001022
00001022
00001122
00001122
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