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6-11SectionSystem Maintenance
200
If required, press Prt. to print the display his-
tory record data.
Press Quit.
The NT31/NT31C returns to the DISPLAY
HISTORY MENU screen.
Example Print-out
All of the recorded data is printed out in the same order as on the currently dis-
played screen.
Example:
Sort by occurrence, from oldest record
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
6-11-5 Displaying and Printing the Alarm History Record
The alarm history record function is a function that continually monitors, during
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 number 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: S With the NT31/NT31C, the record data can also be displayed by registering an
alarm history display element on the screen.
S For details on the alarm history record function, refer to 2-15-2 Alarm History
Record Function in the Reference Manual.
S 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 179).
S The printing method and other information must be set in advance with the
Printer Controller (page 172) and Print Method (page 174) memory switches.