Honeywell VRX180 user manual What happens during a diagnostic, Acknowledging Diagnostic Messages

Online Operation Using Menus

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.

		Table 7-7 Diagnostic Acknowledgment Procedure
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.

Delete All Diagnostics

A diagnostic is not automatically cleared from the summary when the error has been found and corrected. Table 7-8 gives the procedure for deleting the diagnostics.

230 Video Recorder – User Manual