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Alarm Lists (NV4W/NV3Q) Section 7-11
(1) If the Memory Overflow Flag turns ON, the Memory Clear Bit is turned ON
to clear memory contents.
(2) After confirming that the Memory Cleared Flag has turned ON, turn OFF
the Memory Clear Bit.
(3) When the Memory Clear Bit has been turned OFF, the Memory Cleared
Flag will turn OFF automatically.
4. Open base screen 0 and position an alarm list part.
5. Double-click the alarm list part and change the basic setup.
Note (1) The number set in the NV Configuration is displayed as the Reference
Group No.
Drag the Alarm History Part
from the standard parts library
and drop it on the base
screen.
Double-click the parts number
AL0 on the base screen, and
make the following settings.
Operating Mode: History
(Time
Order)
Reference
Group No.: 0
Alarm Number
(i.e., number of
alarms): 32
Display Form
Date : MM/dd
Time: 24:00:00
Display Event: Trig-
gered,
Recov-
ered, and
Acknowl-
edged
Stop Updating: Off
(1)
(3)
(2)
Memory Overflow Flag
Memory Clear Bit
Memory Cleared Flag
(NV to PLC)
(NV to PLC)
(PLC to NV)
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