Section 4
♦
Operating the CMN-41
CMN-41 Series Installation and Operation Handbook
55
Copyright © 2009, Harris Corporation
Figure 4-34. Alarm Log Display Diagram
Table 4-14. Description of Alarm Log Display Diagram
Field
Identifier
Field Information
Nomenclature
1
Input
Displays selected input (A or B)
2
Column Labels
Displays the labels # (for the number in the alarm list),
ALARM NAME, DATE, TIME, TIMECODE, LENGTH
(Duration), and PEAK VALUE*
3
Alarm List
Displays the list of alarms from the most recent alarm to the
last recorded alarm (a maximum of 100 alarms can be
logged)
*
NOTE
: Certain alarm parameters do not have a level measurement that can report a peak value. This is
indicated when NO RPV (No Report Peak Value) appears in the PEAK VALUE column.
When an alarm is first registered, it appears on the alarm display and is highlighted in
yellow. If the alarm is short term (that is, two seconds or less), the alarm text is not
highlighted after approximately two seconds. If the alarm continues longer than two
seconds, the text remains yellow and the alarm duration is incremented. When the next
alarm occurs, the previous alarm moves down one position.
The CMN-41 unit has enough memory for 100 alarms per input. When 100 different
alarm events have occurred, alarm number 100 is dropped and the most recent alarm is
tagged as 01.
Use the Up/Down navigation buttons to scroll through the alarm list
To erase the current group of alarms, press the CLEAR button.
