NT30-KBA04 Omron, NT30-KBA04 Datasheet - Page 183

• Manufacturer Part Number: NT30-KBA04
• Description: ANTI GLARE COVER FOR NT31
• Manufacturer: Omron

Specifications of NT30-KBA04

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

174
Alarm List, Alarm History
Differences Between Alarm List and Alarm History
The alarm list and alarm history differ in the following respects.
Display
method
Monitored
data
Monitor
timing
Recording No recording
Message
contents
Output
data to
the Sup-
port Tool
Display
order
Item
As element only
Host bits allocated
to bit memory
tables within the
designated range
While the alarm list
element is dis-
played only
executed
When a message
is displayed for an
alarm list, the con-
tents of the char-
acter string
memory table set
for the bit memory
table are read.
Not possible for
there is no record
data
Ascending order of
bit memory table
numbers
Alarm List
As element, and as a screen displayed from the
System Menu
Host bits allocated to bit memory tables for which
History is set.
Continuous monitoring regardless of the dis-
played screen
Time of occurrence is recorded.
- Occurrence order:
- Frequency order:
Possible (occurrence order and frequency order
records transmitted simultaneously)
Select either of the following:
- Occurrence order:
- Frequency order:
When the status of a monitored bit at the host
changes to 1 (ON), the contents of the charac-
ter string memory table set for the bit memory
table are read.
When a message is displayed for an alarm his-
tory, the contents of the character string
memory table set for the bit memory table are
read.
Chronological order in which the statuses of the
monitored bits changed to 1 (ON) (displayed
from the oldest record first or the newest record
first depending on the memory switch setting at
the PT)
Order based on the number of times the status
of each bit has changed to 1 (ON), from most to
least frequent.
Alarm History
Section
2-11