Emerson Rosemount 644 Reference Manual page 16

Configuration
March 2021
Note
All steps listed in this product manual using AMS Device Manager assume the use of
Version 11.5.
Local Operator Interface (LOI)
• The LOI requires option code M4 to be ordered.
• To activate the LOI, push either configuration button. Configuration buttons are
located on the LCD display (remove the housing cover to access the interface. See
Table 2-2
location.)
When using the LOI for configuration, several features require multiple screens for a
successful configuration. Data entered will be saved on a screen-by-screen basis; the LOI
will indicate this by flashing SAVED on the LCD display each time.
Note
Entering into the LOI menu effectively disables the ability to write to the device by any
other host or configuration tool. Ensure this is communicated to necessary personnel
before using the LOI for device configuration.
Figure 2-3: LOI Configuration Buttons
A. Configuration buttons
Table 2-2: LOI Button Operation
Button
Left
Right
16
for configuration button functionality and
No
Yes
Reference Manual
00809-0200-4728
Figure 2-3 for configuration button
SCROLL
ENTER
Emerson.com/Rosemount