Single bar channel properties
All settings belonging to a single bar channel can be made here.
Common
Comment | Comment on the channel. |
Enabled | No data are acquired for the channel if Enabled is set to false. |
Name | Specifies the name of the channel. |
Order Position | Position of the channel in the chart. |
Title Color | Specifies the title color for the channel. |
Visible | Here you can set whether the channel should be displayed in the chart. |
Line
Antialias | This option decides how the lines will be drawn. The computing time is longer with antialias. This has an effect in particular if there are many channels with large movements. |
Line Color | Graph Colour. |
Marks
Mark Color | Color of the interpolation point marking. |
Mark Size | Size of the interpolation point marking. |
Mark State | Selecting the visibility of markings → On (permanently visible) | Off (markings switched off). |
Min/Max
Show Max | If the option is set to TRUE, the maximum values for the set display width are shown. |
Show Min | If the option is set to TRUE, the minimum value for the set display width is shown. |
Y-Data
Acquisition | Here you can select the acquisition that will be displayed in the channel. |
Bismask (Y) | In this field a value can be entered with which the display value is masked, provided it is not of the type floating point. This means that the value of the channel is ANDed with the binary value of the mask. This helps you, for example, to observe individual bits of a status byte. |
Offset (Y) | A free offset can be added to the function value of the channel in the offset field. |
Scalefactor (Y) | The display value of a channel can be changed with the scale factor. |
Unit (Y) | This property enables the physical unit to be configured individually for the X-acquisition and the Y-acquisition of the channel. This can be done with the aid of the "Unit Wizard", which can be opened using the button on the right in the field. A further option is to define the units beforehand as attributes in the PLC code. These are then read out directly and entered in the Unit field. Detailed information on the units and their configuration options can be found in the chapter on Physical units. |
To change the settings for several channels at the same time, please refer to the chapter Multiple selection.
Configuration of channel style properties with the aid of PLC attributes
All style properties of a channel can be set directly on a variable or a data type in the PLC with the aid of attributes. This makes it possible to always display a certain symbol with the same style properties without having to reconfigure it every time.
A PLC attribute is specified directly via the declaration of a variable or a data type in curly brackets.
The following syntax applies to the assignment of the channel style properties:
{attribute 'TcScope' := '<Property1:value, Property2:value,…>'}
Example:
{attribute 'TcScope' := '<LineWidth:3, LineColor:red>'}
Any number of channel style properties can be specified in an attribute.
A separate syntax applies to the specification of the unit (Unit property; see: Configuration of units with the aid of PLC attributes).