Signal

The #Signalobject is used to display different states. e.g. Off, On

Parameters

Object

Column A	M/O	Default	Description
#Signal	M		Display of different states

Text/File

Column B	M/O	Default	Description
			If no text or image is specified in the Signal object, its area is shown with the background color corresponding to state 0,1,2,....
<text0>,<text1>,...	O		Text strings for states 0,1,... separated by ‘,’. Also multiple-line Positioning of text: Text is centered, however, the option Pos=<alignment> also allows horizontal alignment.
<image0>,<image1>,...	O		Name of image files for states 0,1, separated by ‘,’. Positioning of images: If a border is defined, the display of the images is centered. If no border is defined, the images are positioned in relation to the top left. Important! When images are defined, there should be no blanks between the ‘,’ as this will otherwise be interpreted as a file name!

Font

C Font column	M/O	Default	Description
<Fontname>.FNT	O	Current font	Font for displaying text

X, Y, DX, DY

Columns D-G

M/O

Default

Description

Integer constants

Variable of type INT

Autom. positioning

Position and dimension

Color

Column H	M/O	Default	Description
Color0,Color1,...	O	Current foreground color	Font color of the text for states 0,1,...

BackColor

Column I	M/O	Default	Description
Color0,Color1,...	O	Current background color	Background color of the text for states 0,1,...

Format

Column J	M/O	Default	Description
Format	O	No frame	Type of frame

Limit1

Column L

M/O

Default

Description

VarType-Min

Lower limit value

...Numerical constant

...Variable of type VarType

Limit2

Column M

M/O

Default

Description

VarType-Max

Upper limit value

Numerical constant

Variable of type VarType

ActionLimit1, ActionLimit2

Columns N,O	M/O	Default	Description
<action>	O		The standard LimitActions are available.

VarValue

Column P

M/O

Default

Description

Value of the signal

Default behavior if no limits and limit actions have been defined:

If the variable contains a value > (the number of defined states - 1) or a value < 0, the first state (value 0) is displayed.

VarType

Column Q

M/O

Default

Description

BOOL

BYTE

SINT

SUINT

WORD

INT

DINT

DWORD

LINT

LWORD

REAL

All numerical data types are supported.

STRING

WSTRING

The string is interpreted as filepath to a image file. If there is no valid image-file the sting is displayed.

VarState

Column R	M/O	Default	Description
<variable>	O		See VarState column

Option

Column S

M/O

Default

Description

Pos={Center¦Left¦Right}

Pos=Left

Horizontal text, image alignment

•	Pos=Center

centered

•

Pos=Left

left aligned

•	Pos =Right

right aligned

The vertical alignment is centered per default

VPos={Top¦Bottom}

Vertical alignment of text or image

•

VPos=Top

top aligned

•	VPos=Bottom

bottom aligned

Switch=<range0>:<range1>:...

The Switch option allows to enumerate value ranges.

range0 -> 0

range1 -> 1

...

If VarValue is matching the first range it is taken as 0, if VarValue is matching the second range it is taken as 1,...

The ranges are separated by a colon.

Ranges can be defined as follows:

<n		All values less than <n>
>n		All values greater than <n>
i..n		All values greater or equal than <i> and less or equal than <n>
n		Exactly <n>

Sample.:

Switch=<1:1:2..5:>5

Range	Index	Description
<1	0	all less than 1
1	1	1
2..5	2	from 2 to 5
> 5	3	greater 5

Transparency=<color>

If an image file was configured, the specified color is interpreted as transparent.

AnimationDelay=<delay>

Defines the animation speed in milliseconds. As soon as VarValue is greater than 0, the variable is incremented by one every <delay> milliseconds. If the maximum is reached, the value is reset to one.

This enables animations to be implemented very easily by visualizing, for example, the running of a sequence of images, such as a rotating pump or similar, when the status is activated.

VarStateOnOffInverted

Inverts the On / Off functionality of the VarState Variable:

VarState = 0 -> Off

VarState = 1 -> On

DisabledPaint={Off¦On}

If the option DisabledPaint=Off is set, disabled signals will be displayed normal (grayed out).

Same behavior as with EPAM3!

Init, Exit

Columns U, V	M/O	Default	Description
SetVar=<value>	O		Sets VarVal to <Value>

Triggering a screen page change in the PLC

The signal object can also be used to trigger screen page changes on the basis of variable values by defining limit values (Limit1/2) and the action ‘#Page=<name>’. In this case, the Text/File column stays empty. The object must be defined globally in order for this screen page change to be executed at any location.