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FX Series Programmable Controllers
Object Function Description 8
8-102
8.16.2 Alarm History (R)
The "Alarm History" object counts alarms (bit devices of the PLC) occurred on the F940GOT screen, and
displays them as the alarm history.
In the conventional version, the alarm history is displayed on the system screen (alarm history display). In the
new version, the alarm history is an object displayed on the user screen.
In order to use the "Alarm History" object, texts to be displayed should be set in "View/Project"-
"Alarms".
Alarm History setting dialog box
Input items
1 ) Title
To "Alarm", "Message", "Recovery" and "Count", input the title name to be displayed respectively.
Set the color of characters to "Title".
To display "Recovery" and "Count", click to check each check box.
2 ) Width
Set the number of total digits of the items set in "1) Title".
(If "Date" and "Time" are selected in "Content", "Recovery" and "Count" cannot be input.)
The allowable maximum number of total digits is shown below.
Set each item to be displayed within this range.
F940GOT: 40 half-width characters max.
F930GOT: 30 half-width characters max.
If the number of total digits exceed the allowable value above, the error message "Data length is too
large" appears.
Screen List Window
Objects
Screen
Keys
Header
""
F940GOT
4)
3)
2)
1)
5)
Refer to the
"Alarm List (L)"
object.
Refer to the
"Text" object.
Display format