Mitsubishi MELSEC F FX-40DU-E Handy Manual page 58

4. USER SCREEN
MODE
The screen number save function can be used to change the display to screens whose screen numbers
have been saved.
4.8.1
Saving screen numbers
Screen numbers are saved by using the CHANGE SCREEN object. This object includes a setting of
YES or NO relating to screen saving; if "YES" is set the screen number of the screen displayed
immediately before a screen change i s saved in the internal screen memory of the FX-40DU-E.
Example
Screen number No.10
I
I
/
SETTING CHANGE
I
Change the screen using the
Screen number No.11
TIMER SETTING
T O 10
see.
u
Internal screen memory
As shown in the table below, two CHANGE SCREEN objects
are registered, in "1" the screen is saved and in "2" the screen
is not saved.
CHANGE SCREEN
L
Screen number No.12
Screen change conditions Screen specification
Key D~~~~~
(destination screen)
1 0 NONE Screen No.1 t
2 1 NONE Screen No.12
Screen number saved.
When the [ 0 ] key is
Screen number notsaved.
COUNTER SETTING
When the
[
1
]
key is
pressed and the display
pressed and the display
changes to screen
changes to screen No.12,
N o l t . thescreen No.10
the screen No.10 screen
screen number is saved
number is not saved in the
in the internal screen
internal screen memory.
memory.
Screen No.
memory
YES
NO
Internal screen memory
*1
Contents of the internal screen memory
The FX-40DU-E reserves only one point for the internal screen memory. Accordingly, when a YES
response is given at the "saved?" prompt, the previous memory entry is overwritten by the new one.
Example: Assume that the screen changes in the following way:
Screen number
Na.0 No.20 No.30
n-;l-n
When the final screen
(No.30) is displayed,
the data in the memory
is the screen number
saved immediately
before the change;
Saved? YES NO
No.20.
YES NO
Internal screen
memory
*2
Preservation of the internal screen memory
The contents of the screen saving memory are only preserved while the power to the FX-40DU-E is ON.
When the power is switched OFF the data in the memory is cleared.