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4.
USER SCREEN MODE
4.7
Screen Change by Specification of Screen Number from the Programmable Colifroller
This section applies to cases where the screen specification for a [CHANGE SCREEN] object is set
as [PC] (programmable controller).
When the programmable controller is specified to perform a screen change in this way, the control
devices set using the screen creation software become effective. These control devices specify the
screen numbers of screens to change, etc. for the execution of the [CHANGE SCREEN] object.
PC control allows display of up to
3
overlaid screens. As indicated below there are two types of control
device; bit devices and data devices.
Bit devices
.....
auxiliary relays
Data devices
.....
data registers
(occupying 6 register points whose reference point is DO. 0 indicates
for multiple screen
the data register device number).
b l
overlays
b0
1
Data registers used to set the screen numbers of destina-
D(0+1)
tion screens ... write in the screen number of the destina-
1
D(0+2)
tion screen.
Screen
0
to
255
.....
User-created
screens
500
.....
Sampling results (displayed in graph form)
Screens
501
.....
Sampling results (displayed in list form)
I
retained
502
.....
OTHER M O D E time display
by the
FX-
503
.....
OTHER M O D E back-light setting
40DU-E
Data registers that store the screen number(s) of the screen(s)
currently being displayed.
4.7.1
Multiple screen overlay function
It is possible to change to a multiple screen display in accordance with the ONIOFF status of bit
devices. D O specifies the reference screen on which one or two screens, specified by D(0+1) and
D(0+2), are overlaid.
(1) No overlay
Bit devices
If both the bit device control devices, b O and b l are set to OFF, the only screen
displayed will be that specified by DO.
Screen
number
specified by D O
1
u
(2) Two-screen overlay
Bit devices
If, bit device b O is set to ON and bit device b l is set to OFF, the two screens
specified by DO and D(O+l) are displayed simultaneously,
(3)
Three-screen overlay
Bit devices
If, bit device b O is set OFF and bit device b l is set ON, the three screens
specified by DO, D(0+1), and D(0+2) are displayed simultaneously.
Screen number
Screen number
Screen number
specified by D O
specified by D(O+l)
specified by D(O+2)
Displayed screen
Screen number
Screen number
b l
specified by D O
specified by D(O+l)
Displayed screen
1
-
m
O F F
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