Specifications

Graphic Operation Terminal GOT-F900 Changeover of Display Screen (GT Designer) 21
21-4
21.3.2 Example of base screen changeover
• An example of base screen changeover is shown below.
Setting for changeover of the base screen (in "Switching Screen" in "Common" in the
screen creation software)
Base screen : D0 (initial value)
Overlap window 1: Not set (Screen overlay will not be performed.)
Overlap window 2: Not set (Screen overlay will not be performed.)
• Immediately after the GOT has been put into screen
mode, screen No. 1 is always displayed. (If screen No.
1 has not been created, the error message "DISPLAY
SCREEN IS NOT AVAILABLE." is displayed.)
•Program in
• When the sequence program shown below is
executed, the screen is changed over to the specified
screen.
• In this example, word device D0 used to specify the base screen, is not located in the
battery backup area. Accordingly, if screen mode is selected in the GOT while the PLC is
stopped, the error message "DISPLAY SCREEN IS NOT AVAILABLE." is displayed. If the
error message is to be avoided, use a word device in the battery backup area.
Screen No. 1
Screen No. 2
Screen No. 3
Displ a
y
ed when D0 becomes 1.
Displ a
y
ed when D0 becomes 2.
Displ a
y
ed when D0 becomes 3.
MOV K1 D0 Screen No. 1 is specified.
Initialization pulse in M8002
(
in FX Series
)
or M9038
(
in A
Series
)
is used so that screen No. 1 is displa
y
ed immediatel
y
after the PLC is switched to RUN.
MOV K2 D0
MOV K3 D0
Screen No. 2 is displa
y
ed.
Screen No. 3 is displa
y
ed.
After screen No. 1 is displa
y
ed, a screen to be displa
y
ed next
can be arbitraril
y
specified.
The condition to tri
gg
er screen chan
g
eover can be arbitraril
y
set in a PLC pro
g
ram.