KB-31289: Time of switchover between Hot-Standby servers.
Question: How long will it take the standby application to take over as the main application in a servers’ switchover? Solution: This time cannot be gauged precisely because it is…
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KB-32409: Domain automatic initialization.
Question: How can I set the Domain to run automatically whenever the computer starts up? Solution: To do so, follow these procedures: Go to E3Studio and load the intended domain.…
Sample application: OPC Communication.
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…
KB-41077: Prodave driver returns error when inserted into the application.
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…
KB-47537: Measuring arrays.
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…
Sample simCLP application simulating a PLC via OPC server.
Introduction Oftentimes, when developing applications with SCADA software, you will need to perform tests where I/O tags must be either forced or simulated. This article will show you how to…
KB-31755: Advantages of OPC communication.
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…
KB-28611: Importing OPC tags.
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,…
KB-39425: OPC communication not working, even after DCOM has been set up.
Question: Why is OPC communication working properly in E3Studio, but not when being executed (even after DCOM has been set up)? Solution: This happens because the OPC Server cannot be…
KB-31617: Elipse E3 as an OPC Client.
Question: Can Elipse E3 work as an OPC Client, accessing all variables from either a local server or a server on the network? How can it be done? Solution: Elipse…