5-1SectionExamples of Actual Applications of Direct Access
408
If required, past status changes can be displayed as a trend graph.
Old Part being displayed New
Previous Page
(Rewind) touch
switch
Next Page
(Forward)
touch switch
Suggestions
• 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 (2-10-4 Trend Graphs,
page 170).
• 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.
Displaying the Day of the Week Using Clock Data in the PT
At the PT, numeric values are stored in numeral memory table entry 253 as
shown below.
Value (decimal) 0 1 2 3 4 5 6
Day of week Sun Mon Tue Wed Thu Fri Sat
By indirect reference of character string displays, the displayed characters are
changed using these values to change, the character string memory table entry
whose contents are to be displayed.
Displaying Sun to Sat, stored in character string memory table entries 0 to 6, by
indirect reference of numeral memory table entry 253.
3 / 12 (Thu)
Fixed display text
Display of numeric value in
numeral memory table entry 251
The display here is
explained in this example.
Display of numeric value in
numeral memory table entry 250
1, 2, 3... 1. Set the initial values indicated below for character string memory table en-
tries 0 to 6. Do not allocate words for these character string memory table
entries in the host.
Character string memory
table entry
0 1 2 3 4 5 6
Initial value Sun Mon Tue Wed Thu Fri Sat
2. Register the part that displays the month and day for the screen, following
the example given above.
Example:
To Next Page
Loading...
Need help?
General
