Accessing The Advanced Diagnostics Information; Checking The Device Status - Emerson Rosemount 3051S Technical Note

Rosemount 3051S
After the Loop Characterization you will be shown the
allowable range for the Voltage Deviation Limit, and
then be asked to enter a value. You can accept the
default of 1.5 V.
Figure 12. Entering Value for the Voltage Deviation Limit
Finally, set the Detection Action for the Power
Advisory Diagnostic. The options are "Alert Latched,"
"Alert Unlatched," and "Alarm." In this example, we
select "Alert Latched," Click OK to complete the
method.
Figure 13. Setting the Detection Action for the Power
Advisory Diagnostic
4
ACCESSING THE ADVANCED
DIAGNOSTICS INFORMATION
The following explains how to use the 375 or 475
Field Communicator to look at the details of an
abnormal event detected by the 3051S Advanced
Diagnostics after an alert or alarm is seen in the host
system.

Checking the Device Status

After the Advanced Diagnostics capabilities have
been configured, the diagnostic algorithms will
operate continuously. If a diagnostic event (e.g. SPM
High or Low variation or Power Advisory) is detected,
then either a digital HART alert will be generated or
the loop current will drive to the High or Low alarm
value, depending upon which detection mode was
configured. After connecting the Field
Communicator, you will see a message indicating the
alert that was detected. The Field Communicator
continuously polls for device alerts, and whenever a
device alert is present, this message will appear.
Click "Yes" to ignore the next 50 occurrences of the
alert and continue using the Communicator. This
message will continue to show up periodically until
the device alert condition is cleared.
Figure 14. Device Alert
Technical Note
00840-1000-4801, Rev AA
April 2011