Alarm History Display - Mitsubishi F940GOT-SWD-E Operation Manual

Graphic Operation Terminal F940GOT
6.4

Alarm history display

This paragraph describes the operating procedure to display the alarm history in the alarm
mode.
In the alarm history, alarm devices which have become ON so far are displayed together with
the date of occurrence and corresponding alarm messages in the order of occurrence.
Up to 1,000 cases can be stored in the alarm history. When more alarms have occurred,
excessive alarm history data is deleted from the oldest one and the latest data is stored. (The
alarm history is displayed from the oldest alarm.)
When the SW¨D5C-GOTRE-PACK is used, the order of display (from the oldest alarm or from
the latest alarm) can be specified in "Alarm History Common Setting".
The alarm history can be deleted using the procedure described in "6.6 Alarm history clear".
u u u u Basic operation
The ALARM
MODE screen is
displayed.
Paragraph 6.1
[ DISPLAY STATUS ]
[DISPLAY STATUS] TOTAL=10 END
1995- 6- 6 13:43:11
PRESSURE IS ABNORMAL
a)
1995- 6- 6 13:44:23
CALL THE PERSON IN CHARGE
1995- 6- 7 22:01:00
c)
PRESSURE IS ABNORMAL
ACK RESET
ALARM HISTORY
Select "ALARM
HISTORY" on the
screen.
The screen shown
below is displayed.
a) Five alarms in the order of occurrence
b)
b) Total number of alarms stored in the history
c) Date of alarm and corresponding alarm message
d) DETAIL key to display alarm messages to details
* The ACK key is provided so that the operator can confirm
DETAIL
d)
: Scroll the display by one line.
: Scroll the display by five lines.
that alarms have occurred.
The RESET key resets occurred alarms (auxiliary relays
in the ON status) to OFF.
Even if the RESET key is pressed, corresponding alarms
are not deleted from the history.
For the DETAIL key, refer to "(3) Detail display" in the pre-
vious paragraph.
Alarm Mode 6
6-9