Table 7-7 Diagnostic Acknowledgment Procedure - Honeywell VPR100 User Manual

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Online Operation Using Menus
Display Diagnostics
A Diagnostic is a displayed error message that indicates a serious error or failure has occurred. See Section
9.5 for diagnostic descriptions and possible causes.
What happens during a diagnostic
A flashing blue diagnostic indicator will appear on the bottom of the screen.
The diagnostic message will be entered into the diagnostic summary which can be viewed at any time.
The summary contains each message and the date and time of occurrence.
If Data Storage is set up accordingly, the diagnostic occurrence will also be logged on a summary list
stored on floppy disk.
The diagnostic summary can contain a maximum of 50 messages with the newest shown at the top of
the list. As new diagnostics occur beyond 50, the oldest will be dropped from the list. Diagnostic
messages are not automatically removed from the summary if the error condition is corrected. The list
must be deleted from the screen periodically by the operator as described under Delete All Diagnostics.
Acknowledging Diagnostic Messages
When a diagnostic occurs, it must be acknowledged by the operator to stop its indicator from flashing. See
Table 7-7.
Acknowledging a diagnostic only stops its indicator from flashing; it does not correct the cause of the
diagnostic. You are not required to acknowledge a diagnostic. The flashing can also be stopped if all
diagnostics are erased, using the DELETE ALL DIAGNOSTICS menu selection.
Step
Action
1
Select ACCESS SUMMARIES from the main online menu.
2
Select DISPLAY DIAGNOSTICS to display a list of diagnostics. Unacknowledged diagnostics will be
flashing.
3
Press the Up Arrow or Down Arrow button and a cursor will appear on the display. Use the Up
Arrow or Down Arrow button to position the cursor on a flashing diagnostic and press Enter to
acknowledge the diagnostic. The flashing will stop and the cursor will disappear.
If you do not press any button for a period of 5 seconds, the cursor will disappear. This is a safety
feature, because while the cursor is visible on the display, the display is temporarily disabled and a
new diagnostic will not be shown.
4
If there are more flashing diagnostics, press the Up Arrow and Down Arrow buttons to restore the
cursor.
Display All Analogs
Displays current value of all analog points in the instrument. These include all analog I/O, loops, calculated
values, totalizers and system parameters. Only those points that have been programmed will be displayed.
Display All Discretes
Displays current status of all discrete points in the instrument. These include all discrete I/O, alarms, loops,
calculated values, totalizers and system parameters. Only those points that have been programmed will be
displayed.
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Table 7-7 Diagnostic Acknowledgment Procedure

VPR & VRX – User Manual
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