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System Maintenance Section 6-11
Example Print-out
All of the recorded data is printed out in the same order as on the currently
displayed screen.
Example:
Sort by occurrence, from oldest record
6-11-5 Displaying and Printing the Alarm History Record
The alarm history record function is a function that continually monitors, dur-
ing operation, the status of bits at the host designated in advance with a bit
memory table, and records the time when these bits come ON, and the num-
ber of times they come ON.
The record data can be displayed, and printed out at a printer connected to
the NT31/NT31C by operation from the System Menu.
This section explains how to display and print out the alarm history record
data recorded in the NT31/NT31C.
Note that there are two display methods sort by occurrence (ON time order)
and sort by frequency (order of number of times the bits have come ON).
Reference: • With the NT31/NT31C, the record data can also be displayed by register-
ing an alarm history display element on the screen.
• For details on the alarm history record function, refer to 2-15-2 Alarm His-
tory Record Function in the Reference Manual.
• The order of display for sort by occurrence display (from oldest record or
from newest record) is set with the Hist. Disp. Method memory switch
(page 180).
• The printing method and other information must be set in advance with
the Printer Controller (page 173) and Print Method (page 175) memory
switches.
No. Scrn YY/MM/DD HH:MM Comment 01/01
1 1 98/01/12 10:21 Coolant Error
2 2 98/01/12 11:53 Motor Error
3 8 98/01/13 09:35 Compressor Error
4 2000 98/01/13 14:22 Emergency Stop
Press Quit.
If required, press Prt. to print the display
history record data.
The NT31/NT31C returns to the
DISPLAY HISTORY MENU screen.
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