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7 User Screen
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7.3 Screen switching
(1) Screen switching device
The designed user screen in GP Editor has own number and it is downloaded to LP, LP
monitors base screen switching device periodically and decides to be displayed base screen.
Screen switching device is designated in GP Editor. It recognizes the current value of device
assigned to switching device of base screen as screen number, it is displayed the screen.
In order to make same as the real screen number and device reference value for screen
access, it is designed to display screen no.1 when the current value of device is ‘0’.
[Operation when D0 [Current value] device as base screen number device]
If there is no screen number corresponding the device value of screen data, error message
appears
(2) Screen switching methods
It is switched to the appropriate screen when changing screen switching device value. It is
changed as below methods.
1) Using touch key for switching screen
There are switching functions of touch key operations as follows.

Switching to the fixed screen

Switching to the previous screen

Switching to the adjacent lower number of screen
 Switching to the adjacent upper number of screen
2) Numeral input
It is switched to the appropriate screen inputting screen number in screen switching
device using numeral input tag.
3) Device monitor
It is switched from device on device monitor of system screen to the appropriate
screen inputting the value in screen switching.
4) Screen switching a screen by PLC program
When changing a screen switching device on PLC program, LP switches it into the
appropriate screen.