A-120 OPERATION PANELS
7-6-3
Alarm History Screen
Function selection key
(MESSAGE)
[ALARM HISTORY]
This screen displays alarms in order from the latest alarm.
Past alarms not displayed in this screen can be checked
by pressing the page selection key
(advance).
The following types of alarm information are displayed.
1.
Date and time
2.
Alarm No.
3.
Alarm message
The right end section of a PLC alarm message
may be omitted at the ALARM HISTORY screen.
If an alarm occurs while the ALARM HISTORY screen is
displayed, the information on the ALARM HISTORY
screen is not updated. To update the displayed alarm
history information, change the screen to any other
screen once then change it back to the ALARM HISTORY
screen. Then, the latest alarm history information is
displayed.
Pressing the
[DATE]
soft-key displays alarms in
maximum of four display pages in the order of occurrence
(date and time).
Pressing the
[KIND]
soft-key displays alarms in two
categories (NC alarm and PLC alarm) in maximum of five
display pages in the order of occurrence (date and time).
Pressing the
[EXEC.]
soft-key after pressing the
[CLEAR]
soft-key clears alarm history.
MESSAGE
NOTE