Visualization Element: Combo Box, Integer Symbol: Category: Common Controls The element shows values as a list box. When the user clicks an entry, the ID of the entry is written to an integer variable

Displaying Data Graphs with a Trend Element A Trend visualizes data which is used in the database of a trend recording. In contrast to the Trace element, the Trend element is particularly suitable for

Getting Started with Trend Visualization When you execute a trend, it is best to proceed with user guidance and the help of the trend wizard. Procedure . Development of a visualization with trend Crea

Programming a Trend Visualization To display a trend recording in the visualization, you define which application provides which trend recording. You define the display by means of the Properties of t

Configuring the Time Axis A trend diagram displays the progression of variable values over time. For this purpose, values were stored in the Trend Recording object for each timestamp. This is the data

Displaying and Editing Text Files Using the Text Editor element, you can display a text file in the user interface and optionally allow the user to edit the file. :

Configuring the display of a text file To display a text file located on the controller, you need controls for selecting, opening, and closing the file in addition to the Text Editor element. As an op

Configuring the editing of a text file To use the Text Editor in the user interface to create or edit a text file on the controller, you need controls for selecting, opening, closing, saving, and crea

Alarm Management You can set up an alarm management system in an application to monitor critical conditions and trigger alarms. As soon as the user has acknowledged an occurring alarm, it is removed f

Alarm Definition In the alarm management in CODESYS , the definition of an alarm consists of the following components: General description (ID, observation type, message text, etc.) Description of the