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2-11
Section
Alarm List, Alarm History
176
3. In case multiple messages are displayed, pressing another message will
cause it to be displayed in reverse video, and the corresponding image/li-
brary data will be displayed.
Image/library data corresponding to the second alarm message
PROCESS 3 STOPPED
WATER TANK OVERHEATING
It is also possible to set
correspondence between bit memory
tables and screen numbers. Here, if
the second alarm message is
pressed again, the corresponding
screen will be displayed.
Check the thermostat!
URGENT
4. When a message displayed in reverse video is pressed again, the display
will switch to the screen with the set screen number.
Reference:
In the case described above, both image/library display and screen changeover
functions are set. The operation when a touch switch is pressed is determined as
follows in accordance with these settings.
Image/li-
brary dis
Screen
Touch switch
brary dis-
play
Screen
changeover
First time
Second time
Not set
Not set
No effect
No effect
Not set
Set
Screen changeover
–
Set
Not set
Image/library data display
No effect
Set
Set
Image/library data display
Screen changeover
Restrictions
•
A combined total of up to 4 alarm lists and alarm histories can be displayed on
one screen. (Same for window screen) In the case of an overlapping screen
with 8 child screens, the maximum total is also 4.
•
With the NT31/NT31C, up to 12 alarm list/alarm history messages can be dis-
played at the same time. With the NT631/NT631C, up to 24 alarm list/alarm
history messages can be displayed at the same time.
The remaining messages can be displayed by pressing the line/page scroll
touch switches.
•
An alarm list can monitor bit memory tables in the range from No1 to No.1000.
(When 1000 is set for number of bit memory table entries)
•
The maximum number of data to be recorded with the alarm history is 250 for
order of occurrence, and 255 for order of frequency.
•
When displaying image/library data with alarm list/alarm history elements, the
maximum simultaneous display restriction imposed on image and library data
applies. Therefore a maximum combined total of 256 image/library data used
for alarm lists/histories and image and library data used for other applications
can be displayed on one screen. For an overlapping screen comprising 8 child
screens, the maximum is 1024.
•
If, when library data is displayed with an alarm list/history, the library data proj-
ects outside the image/library data display area, nothing is displayed. In the
case of image data, only the part inside the area is displayed.
•
If no data is registered for the image/library code specified for use with an
alarm list/alarm history, nothing will be displayed.
•
The contents of the character string memory tables displayed as messages for
alarm lists and alarm histories are read at the following times.
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