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Alarm List, Alarm History
Section 7-11
- Page scrolling touch switches
If there is one page or more of messages above or below the displayed range,
these touch switches are lit. This makes it possible to tell at a glance whether
there are any messages outside the displayed range.
S Note on clearing alarm history record data
The alarm history record data can be cleared (initialized) by either of the follow-
ing operations.
- Select “Maintenance Mode”
"
“Memory Init.”
"
“Alarm History” from the
System Menu.
- Set bit 1 (alarm history initialization) of the PT status control bits to “1” (ON).
[Input Functions]
The alarm list and alarm history only read the statuses of bit memory tables and
therefore have no direct input function.
For details on the method for monitoring host bits, refer to 7-3-3 “Bit Memory
Tables” (page 295).
[Output Functions]
Alarm lists and alarm histories have no output function.
[Processing Functions]
Alarm lists and alarm histories have no data processing function.
[Relationship with Other Elements]
S Alarm lists and alarm histories monitor the statuses of host bits, display mes-
sages and image/library data, switch screens, etc., in accordance with the set-
tings of bit memory tables. For details, refer to 7-3-3 “Bit Memory Tables” (page
295).
S Alarm lists and alarm histories overlap with other elements in accordance with
the order in which they were registered for the screen with the Support Tool.
However, the way in which they overlap can be changed with the Support Tool.
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