KB-34187: Driver for barcode reader.
Question: Which driver is used for communication between E3 and a barcode reader? Solution: To identify the appropriate I/O driver for a certain application, you must first check the communication…
Categoria: En
KB-32164: Importing new variables.
Question: When a new variable is inserted into the PLC and the list is imported, why is the sequence of I/O tags indexes altered? Solution: To add new variable, use…
Retrieving averages of time (minutes, hours, and days) from an SQL Server database.
In this article, we will show you how to retrieve the averages from the table fields in an SQL Server database of three different time units: minutes, hours, and days.…
KB-45960: Animating JPG and BMP files with rotation.
Question: Can I animate *.JPG and *.BMP files with the rotation effect? Solution: No, you cannot. You can only successfully animate vector figure files with the rotation effect, such as…
KB-45928: Deleting files in E3.
Question: How can I delete files in E3? Solution: To do so, use the following script: ‘Search for file to be deleted Application.ShowFilePicker True, File‘Delete fileSet filesys = CreateObject(“Scripting.FileSystemObject”)filesys.DeleteFile File…
KB-28695: Enabling a scrollbar on WebViewer.
Question: How can I enable a scroll bar on the WebViewer? Solution: This will not be necessary: the E3 already does this automatically, depending on the size of the screen…
Setting up where E3 application’s queries will be executed.
Question: Where are E3 application’s queries executed: in the Viewer or in the Server? Solution: This will depend on EnableLocalCreation property’s value. If EnableLocalCreation property is set as TRUE, the…
KB-45132: CommandButtons’ color changes due to Windows’ version.
Question: The color of some buttons in my application changes depending on the operational system where it is running. Why does it happen? Solution: The default color of CommandButton objects…
KB-43139: Fields' subtraction result in a report.
Question: How can I show data from a query in a report, as well as the difference between the first and the last values of the fields? Solution: It is…
KB-44059: Creating a 1-second pulse button.
Question: How can I create a button whose pulse lasts 1 second? Solution: To do so, you must use a Counter Tag, and set it up as described: CounterType: 0…