Engineering the picture switch function

When creating a picture switch function for a picture of the type Energy Management System the following dialog is displayed:

During the Runtime the EMS picture is opened with the help of a picture switch function. For the picture call-up the following parameter can be set:

Name of the property	Description
`Grids`	Selection of the grids. After that the available areas are displayed in the selection box `Supply area`.
`Supply areas`	The selected supply area is displayed in the Runtime n of the optimization. Only one supply area can be displayed per picture. You have however the possibility to open several pictures of the type "Energy Management System" parallel. At that several supply areas can be displayed parallel.
`Current value`	This field is only for display. You cannot change the value. The variable of the property Current value of the currently selected supply area is displayed.
`Final value forecast`	This field is only for display. You cannot change the value. The variable of the property Final value forecast of the currently selected supply area is displayed.
`Forecast average`	This field is only for display. You cannot change the value. The variable of the property Forecast average of the currently selected supply area is displayed.
`Forecast area`	This field is only for display. You cannot change the value. The variable of the property Forecast area of the currently selected supply area is displayed.
`Supply limit`	This field is only for display. You cannot change the value. The variable of the property Supply limit of the currently selected supply area is displayed.
`Scale maximum`	Upper limit of the range scale for the display of the characteristic curve in the EMS picture.
`Scale minimum`	Lower limit of the range scale for the display of the characteristic curve in the EMS picture.
`Billing period (min.)`	This field is only for display. You cannot change the value. Shows the currently set length of the Billing period for the selected supply area.
Value color and width	Color and line width for the display of the elements for the current average value and for the forecasted average value.
Axis color and width	Color and line width for the display of the chart axes.
Help line color and width	Color and line width for the display of the help lines (display of the supply limit and billing period).
Curve color and width	Color and line width for the display of the chart curves (display of the current value and the scheduled switchings).
Font axis	Font which is used for the axis caption and the trend curve.