Omron NT31 Operation Manuals page 624

Examples of Actual Applications of Direct Access
Displaying the Day of the Week Using Clock Data in the PT
Example:
If required, past status changes can be displayed as a trend graph.
Old Part being displayed
"Previous Page"
(Rewind)
touch switch
Hints
S Apart from the "Previous Page" (Rewind) and "Next Page" (Forward) touch
switches indicated above, the following touch switches can be created without
restriction to control the display and data recording (7-10-4 "Trend Graphs",
page 391).
- "Stop" touch switch
Stops data sampling.
- "Restart" (Continue) touch switch
Restarts data sampling when it has been stopped.
- "Display Clear" (Clear display) touch switch
Clears the currently displayed trend graph, then starts drawing the graph from
the new status (past records are retained).
- "Log Clear" (Clear log) touch switch
Clears past records.
At the PT, numeric values are stored in numeral memory table No. 253 as shown
below.
Value (decimal) 0
Day of week Sun
By indirect reference of character string displays, the displayed characters are
changed using these values to change, the character string memory table whose
contents are to be displayed.
Displaying "Sun" to "Sat", stored in character string memory tables No. 0 to 6, by
indirect reference of numeral memory table No. 253.
Display of numeric value in
numeral memory table No. 251
Display of numeric value in
numeral memory table No. 250
New
"Next Page"
(Forward)
touch switch
1 2 3
Mon Tue Wed
Fixed display text
3 / 12 (Thu)
Section 10-1
4 5 6
Thu Fri Sat
The display here is explained
in this example.
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