61
Reference Manual
00809-0200-4840, Rev BA
December 2014
Section 4: Configuration
In addition, the two-wire loop current changes to indicate a
low
or
high
alarm as specified by the
model code (see
“Special Alarm Options” on page 118
). The current remains at that level until
the correct target echo is recovered.
“HOLD” action
The current output is held at the last good PV value.
Field Communicator or AMS
To view or change the lost echo action:
1.
From the
Home
screen, select
2: Configure
.
2.
Select
2: Manual Setup
.
3.
Select
5: Engineering
.
4.
Select
2: Lost Echo Action P022
.
5.
Select a new action, and then press “
ENTER
” to save it.
6.
Press “
SEND
” to update the transmitter.
Note
When messages appear, take appropriate action if needed and press “
OK
”.
Rosemount 3490 Series Control Unit
To view or change the lost echo action:
1.
From the
Main Menu
screen, select
SETUP
.
2.
Select the transmitter (e.g. “
Tx1: 3107
”).
3.
Select
ENGINEERING
.
4.
Select
LE Action
.
5.
Follow the on-screen instructions to edit and save the new setting.
(Press the
Enter
(
) key if prompted to change the mode to “off-line”).
6.
Select “
Quit
” to exit to the previous menu.
Lost Echo Action P022
Hold
Minimum
Hold
Maximum
Hold
ENTER
ESC
(Field Communicator Screen)
LE Action P022
Hold
Esc=Quit =Edit
(Rosemount 3491 Screen)
Summary of Contents for 3107
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