Displaying an Alarm for Variable Values in Bar Graphs

You can display an Alarm for variable values in a bar graph.

To create a bar graph, use a [Rectangle] object and below [Animation], the [Fill Level] property. Also, use the scale converter to align variable values with values displayed in the graph, and the range converter to change the display color when there is an alarm.

Example Operation

Setting Workflow

Add Variables

Set up Converter

Set up Parts/Shapes

Add Variables

Project Explorer : [Variables] ➞ [All Variables]

Add the below variable(s).

Variables property:

[Name]	[Data Type]
Var1	[USINT]

Set Up Converter

Project Explorer : [Converters] ➞ [User-Defined Converters]

Add the below converter(s).

[Name]	[Type]
Converter1	[Range]
Converter2	[Scale]

Converter1 property:

Tab	Property		Value
[Basic]	[Data Type (Source)]		[Numeric]
	[Data Type (Result)]		[ColorID]
	[Range]		2
	[Range1]	[Data (Input)]	200
		[Operator]	>
		[Value]
	[Else Condition]	[Value]

Converter2 property:

Tab	Property	Value
[Basic]	[Maximum (Source)]	255
	[Maximum (Output)]	100
	[Minimum (Source)]	0
	[Minimum (Output)]	0

Set Up Parts/Shapes

Project Explorer : [Screen Design] ➞ [Screens] ➞ [Screen1]

Drag and drop the following objects from the [Tool Chest] to the screen.

Bar Scale (Name: BarScale1) properties:

Tab	Sub Tab	Property		Value
[Shape]	[Text]	[Scale Label]
		[Label Attribute]	[Minimum]	0
			[Maximum]	255

Rectangle (Name: Rectangle1) properties:

Tab	Sub Tab	Property			Value
[Shape]	[Basic]	[Fill]	[Value]		[Variable] [Name]: Var1 [Converter]: [User-Defined Converters] ➞ [Converter1]
		[Border]	[Type]		[None]
	[Size/Location]	[Animation]	[Fill Level]	[Enable]
				[Vertical Fill]	[Variable] [Name]: Var1 [Converter]: [User-Defined Converters] ➞ [Converter2]

Numeric Display (Name: NumericDisplay1) properties:

Tab	Sub Tab	Property	Value
[Function]	[Basic]	[Current Value]	[Variable] [Name]: Var1