Omron NT31C Reference Manual page 302

Screen Display and Notification
Reference:
Operation
Reference:
Example of Use
Switching the Screen by Using the Switch Screen Function of the Bit Memory Table
Setting
S To display overlapping screens, specify the screen number of a parent screen.
S The screen is not switched if elements have not been registered to the speci-
fied screen number.
Press the touch switch with the screen switching function when the screen is to
be switched.
S When the screen is changed over, the screen switching strobe of the PT status
notify bit changes to 1 (ON), after the new screen number is written to the
screen switching setting area in the PT status control area, so that the event of
screen switching is notified to the host. After that the screen switching strobe
returns to 0 (OFF) automatically. (Refer to page 295.)
S When NT30/620 compatible mode is being used, the current screen number
occupies the first word of the PT status notify area and the word containing the
PT status notify bits is shifted down one word. (Refer to page 441.)
Screens other than No. 9999
To next screen
Screen number 5 is set for touch switch 1
Screen No. 9999
Menu Screen
Operation 1
Operation 2
If this method is used, it is possible to switch the screen by bit operation at the
host.
PT
Display
Screen No. 3
When creating a screen with the Support Tool, set the Switch Screen function in
the bit memory table and specify the screen number of the screen to be dis-
played. Allocate the bit memory table to the bit in the host.
When touch switch 1 is pressed
Screen switching
@ Instruction from host
@ Screen switchover key
Touch switch 1 pressed
PC
Bit table 1
Allocated bit (bit table 1)
Screen No. 3
1
↑
To be set by the
After confirming that the screen
Support Tool
has been switched by the data
at the screen switch setting area
in the PT status control area
Allocated bit (bit table 1)
0
(On the PT, the screen number
remains at 3.)
Section 3-3
Screen number 5
Previous screen
Screen number
9999 is set for
touch switch 1
← 1 (ON)
← 0 (OFF)
291