Question: A group with setpoints has a button that changes its status from Visible to Invisible, and vice versa. However, when the value of one of these setpoints is edited…
Question: How can an E2Button be set up to use bitmaps as the button’s background? Solution: To do so, follow these procedures: Include two bitmaps (pressed and not pressed) in…
Question: At E3Chart, can I pick a new color for a pen being plotted when clicking the information displayed in the legend of this pen? Solution: Yes. To do so,…
Sample application that establishes basic communication via OPC. In the attached folder are both the server and the client applications. NOTE: be sure to remember setting up the server machine’s…
Question: When Prodave driver is inserted into the application, an error message is returned. In Elipse SCADA, the following message appears on screen: “Failed to load driver DLL ‘c:\temp\prodave.dll’”. In…
Question: Is there any function that will help me find out an array’s size? Solution: Yes. To do so, you must use Ubound function. Example of script running in a button…
Question: What are the advantages of communicating via OPC client/server? Solution: Some advantages of communicating via OPC are: Drivers’ easy configuration: once the tag base is created in the OPC…
Question: Why is an OPC tag imported from an E3 Server displayed as folder containing several properties? Solution: OPC tags are imported as folders containing its main properties. If necessary,…
Question: How can I disable a button only for certain groups of users (for example, to keep users not belonging to Administrators group from accessing it when they are logged…
Question: How can a dynamic Array be declared? Solution: First, you must declare the array with no size. Then, use ReDim declaration to size the array as needed. Script being…