DSP
CLR
LOG
CLR
6-9
Section
Graphs
249
During data sampling, the touch switch is lit.
Display Clear (Clear Display) touch switch
Clears the trend graph display. Even if the display is cleared, the logged data are
not cleared.
Log Clear (Clear Log) touch switch
Clears all logged data. At the same time, the trend graph being displayed is
cleared. This switch clears only the trend graph being displayed. The trend
graphs registered on other screens are not cleared. This switch is valid only
when the data logging function is used.
Previous Page (Rewind) touch switch
Displays the logged past data, older than the time range of the presently dis-
played graph. This switch is valid only when the data logging function is used.
Next Page (Forward) touch switch
Displays logged data that is newer than the time range of the presently displayed
graph. This switch is valid only when the data logging function is used.
If the latest data is displayed while the data is being logged, updating of the trend
graph display automatically restarts.
Concerning the previous page touch switch and the next page touch switch, the
one pressed later is lit.
Reference: When the data of trend graph made with NT30, NT30C, NT620S, NT620C, and
NT625C were converted to the use for NT31, NT31C, NT631, and NT631C, if
touch switches for controlling trend graph is added after that, the Label of the
touch switch may not be appeared or some other marks may be appeared.
This is because the method of using marks of “FFEF to FFF5 (hexadecimal)
code” differs between NT30, NT30C, NT620S, NT620C, NT625C and NT31,
NT631, NT631C.
(With NT31, NT31C, NT631, and NT631C, they are used for touch switches for
controlling trend graph.)
Resetting the each mark of FFEF to FFF5 code with mark editor enables the cor-
rect display. For details, refer to Correcting the Screen Data Conversion (Correc-
tion related to control touch switch of trend graph) in Appendix A.
