Question: If I try to generate the Historic’s structure in an Access Database, the following error occurs: Why does this happen? Solution: This happens because there is a limit of…
Descrição: É possível executar comandos de IF/ELSE/ENDIF em um Tag Expressão? Solução: Não, isso não é possível.
Question: Why can’t E3 be installed in a Sun’s VirtualBox virtual machine? Solution: For this to happen, the VT-x/AMD-v options must be activated on the host’s and virtual machine’s BIOS…
Question: How can I calculate the standard deviation in data recorded in the database, and display the result in a Report? Solution: This can be done via the Setpoint object’s…
Question: How can I set limits to the number of characters that can be read and written in a Setpoint with a bi-directional connection? Solution: To set limits to the…
Question: How can I export a formatted report to PDF? Solution: To do so, the only possibility is to use a virtual printer that prints in PDF format. For virtual…
Question: How can I set up an SQL query to return data whenever a historic field of type date/time has a certain value? Solution: For a Microsoft SQL Server…
Descrição: É possível trabalhar com uma data do tipo FILETIME no E3? Solução: Não, isso não é possível, pois esse tipo de dado utiliza 64 bits e trabalha com resolução…
Question: When I select a CheckBox, it receives the keyboard’s focus. However, if I press the SPACE key, the CheckBox changes its value again, causing problems to the process. How…
Question: In an application, the E3Chart and its Query are in a library to make it easier creating several equal tables. How can I configure a dynamic Query to use…