KB-18257: Creating a chart with digital points.
Question: How can I create a chart with digital points? Solution: To do so, access E3Chart’s pen settings. On Style tab, change Drawing Style property to Dots, and on Connection…
Author: Enrico Busnello Amorim
KB-31241: Enabling/disabling buttons according to the user logged in.
Question: In an application with multiple users, how can I make sure only the logged-in user’s button is enabled, while the others remain disabled? Solution: To do so, you can…
KB-35821: Displaying E3Server’s and E3Viewer’s versions on screen.
Question: Can E3Viewer‘s and E3Server‘s versions be displayed on a screen in the application? Solution: Yes. To do so, just use VBScript’s GetFileVersion() method to read the versions of E3Server.exe…
KB-29142: Excel shows absolute value or “###”.
Question: Why does Excel interpret as absolute a value written in date formate by a DDE tag? Solution: If the Excel cell is formatted as Date/Time, several “###” characters will…
KB-31263: Opening Internet Explorer browser from E3.
Question: How can I open Internet Explorer in the same window as E3 Viewer while keeping a new E3 Viewer from being opened? Solution: This can be achieved in the…
KB-30214: Pulse button in E3.
Question: How can I create a pulse button using the CommandButton object? Solution: To do so, there are at least two possibilities: you can write two scripts in events of…
KB-28928: Recording alarms and events in different tables.
Question: Can I record alarms and events on different tables in the Database? And how can I tell them apart in E3Alarm? Solution: You cannot record alarms and events on…
KB-27586: Adding values of a Query field and showing it in a Display.
Question: How can I add the values of a Query field and show the result in a Display? Solution: To do so, you must use SUM() function in the SQL…
KB-26489: Removing alarms from E3Alarm when losing communication.
Question: How can I remove all alarms from the E3Alarm when the driver loses communication with the field device? Solution: One way to do so is to execute E3Alarm‘s Deactivate()…
KB-28380: Sending e-mails whenever an alarm is activated.
Question: How can the application be set up to send an e-mail whenever an alarm is activated? Solution: To do so, you must use the SendMail driver and create an…