Configuration Settings for Operator Screens

At a Glance

The configuration section accessible from Tools > Project Settings > Operator Screens is used to:

Manage the control of screens by the PLC,
Manage the detection of displayed screens,
Manage the display or masking of screen numbers in the project browser,
Manage the display of full screen at opening.

Representation

Description

Elements of the Operator screens section:

Field	Description
Operator Screens
Full screen at opening	When this box is checked, the operator screens open in Full screen mode. The menu bar is replaced by the drawing toolbar.
	Modification:	Online possible
	Action required:	No build necessary
Controlled Screen
Variable	Variable: This field is used to enter the screen control variable. In online mode, this variable enables the PLC to select the screen to be displayed. To the right of this field is the button, which can be used to access the variable instance selection window. Type: Type of the selected variable. Comment: Comment on the selected variable. NOTE: Only variable with type EBOOL, BOOL, byte, INT, or DINT can be selected.
	Modification:	Offline only
	Action required:	No build necessary
Displaying screens controlled via the PLC	When this box is checked, displaying of screens in online mode is controlled via the PLC. It is the value of the control variable that determines the screen displayed. This setting can also be changed via the shortcuts F2/F3 or their corresponding buttons in the toolbar when an operator screen is open.
	Modification:	Online possible
	Action required:	No build necessary
Display screen number in the project browser	When this box is checked, the screen number is displayed to the left of the screen name in the project browser.
	Modification:	Online possible
	Action required:	No build necessary
Last opened screen
Variable	Variable: This field is used to enter the DINT type variable containing the number of the last screen opened by the user or the PLC. To the right of this field is the button, which can be used to access the variable instance selection window. Type: Type of the selected variable. Comment: Comment on the selected variable. NOTE: Only variable with type DINT can be selected.
	Modification:	Offline only
	Action required:	No build necessary

Control Variable

The control variable enables the PLC to select the screen to be displayed. This variable can be binary or numeric.

Binary Control Variable

A binary control variable allows controlling the operator screen display with only one button connected to the PLC.

For each of the steps of the trend diagram, the control variable operates as follows:

Step	Operation
1	Its value is equal to 1 for more than 1 second: the screens are highlighted one after another (1 second per screen) according to their position in the project browser. The PLC selects the screens by scrolling through the list from top to bottom.
2 and 4	Its value is equal to 0 for more than 1 second: the screen currently highlighted in the Project Browser (n = current screen) is displayed.
3	Its value is equal to 1 for less than 1 second: on each pulse, the PLC selects the screen (n+1) in the list of operator screens. The pulses are used to display the screens one by one.

NOTE: As long as this binary control variable has value 1, the operator screens are selected automatically in project browser one after the other. In this case, the context menu cannot be used in the project browser.

Numeric Control Variable

When the control variable is numeric, its value corresponds to an operator screen number. Therefore, the screen editor displays (if it exists) the screen whose number is equal to the variable value.