Omron NT31 Operation Manuals page 421

Alarm List, Alarm History
[Common Attributes]
410
S The contents of the character string memory tables displayed as messages for
alarm lists and alarm histories are read at the following times.
- When an entire alarm list or alarm history is displayed by screen switching
- When a bit being monitored by the alarm list function changes status from OFF
to ON, and the corresponding message is displayed.
Messages already displayed are unaffected even if the contents of character
string memory tables change.
S The message display areas for alarm lists/histories are touch switches. Do not
overlap them with other touch switches.
The relationship between the common properties of alarm lists and alarm histories
and the display result are indicated below.
S Properties
General
Position
Size
Message
Length
Display Line Qty Maximum number of displayed messages
Scale
Smoothing
Line Scroll Touch
Switches
Page Scroll Touch
Switches
Coordinates of the top left corner of the alarm list/history.
Width and height of the alarm list/history (in dot units)
(But note that motion is in touch-switch-sized units only)
Maximum number of characters in the displayed message
Range: 1 to 39
For the alarm history function, the number of characters is
decreased by the number required to display the "History
Info".
Restrictions also apply in accordance with the "Scale"
setting.
Range: 1 to 12
Scale at which messages are displayed ("Enlarged display",
page 369)
1×1 (Equal), 1×2 (High), 2×1 (Wide), 2×2, 3×3, 4×4,
8×8
Whether or not smoothing is used for characters with a
scale of 2×2 or larger ("Smoothing", page 369)
Check mark (smoothing executed)/
No check mark (smoothing not executed)
Presence/absence of touch switches for scrolling messages
in line units
Check mark (touch switches present)/
No check mark (touch switches absent)
Presence/absence of touch switches for scrolling messages
in page units
Check mark (touch switches present)/
No check mark (touch switches absent)
Section 7-11