Emerson Rosemount 3490 Series, Reference Manual

Page: 85 / 190

4. Use the on-state parameter P342 (IN1) or P347 (IN2) to change the logic of the
input for triggering an action. Options are:
Option Description
Closed (default) Action is triggered when the voltage-free contact is closed.
Open Action is triggered when the voltage-free contact is open.
4.4.11 Data logging on the Rosemount 3493
Menu
SETUP
→
[CONTROLLER]
→
LOGGING
The Rosemount 3493 can record (log) up to 7000 events at regular intervals.
• Each event is a parameter value. The parameter to be recorded (logged) is the one
selected for the middle section of the display, which is typically the control unit
Primary/Process Variable (PV).
• If the Rosemount 3493 has been set-up to totalizer, the daily value of the totalizer at
midnight is also logged. Up to 60 midnight totalized values are held in memory. This is
in addition to the memory for 7000 events.
• The maximum value of the parameter in each 24-hour period is also logged.
The Rosemount 3493 gives a visual indication that logging of data is underway by flashing
“LOG” in the bottom, right-hand corner of the
Full PV display .
Note
Logged data may be downloaded at any time using the RS232 data download socket,
supplied with a Rosemount 3493, and Rosemount LOG-VIEW software running on a
Windows PC.
Reference Manual Getting started
00809-0100-4841 January 2021
Emerson.com/Rosemount 85