Omron NT20S Operation Manual page 178

Overview of Direct Connection Operations
Example of Display Screen Switching
S Continuous screens and overlapping screens
Continuous or overlapping screens can be displayed by designating the parent
screen. If a child screen is designated, only the child screen is displayed.
For the continuous and overlapping screens, refer to the "Classification of
Screens" (page 122).
This example operates the PC switch (bit) to switch the NT20S display screen.
S Support tool settings
Make the following settings with the support tool:
PT status control area:
PT status notify area:
Screen number to be created: Screen #2 and #3
S PC ladder program
Create a PC ladder program as follows:
00002
00003
11212
Screen switch strobe flag
S Program operation
(1) Screen #2 is displayed on the NT20S when bit 00002 turns ON.
(2) Screen #3 is displayed on the NT20S when bit 00003 turns ON.
(3) When the screen switch strobe flag turns ON, the number of the currently dis-
played screen is read and written to the currently displayed screen word in the
PT status notify area. In this case, the NT20S will not write the same screen
twice.
Word 0100
Word 0110
@MOV(21)
Screen number
#0002
Screen switch setting word
100
@MOV(21)
Screen number
#0003
Screen switch setting word
100
@MOV(21)
Screen number
110
Screen switch setting word
100
Section 5-1
(1)
(2)
(3)
159