KB-33906: Hot-Standby x Databases.
Question: What is the proper architecture to work with databases in Hot-Standby? Solution: There are two possibilities: Two computers running E3Server (Hot and Standby), and a third one running the…
KB-31801: Network integrity check in Hot-Standby settings.
Question: What is an Integrity Ping in Hot-Standby settings? Is it really necessary? Solution: Setting up the Integrity Ping is essential for the Hot-Standby mode to work correctly! The Hot-Standby…
KB-26057: Viewer’s behavior during servers’ switchover.
Question: What is the Viewer‘s typical behavior during a servers’ switchover in Hot-Standby? Solution: The Viewer switches servers automatically, and will always connect to the active E3Server. However, communication is…
KB-47756: Reading values from a CSV file.
Autor
Mateus Machado
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…
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-47758: Exportando dados do SQL Server para o Excel.
Descrição: Como exportar uma tabela do SQL Server para o Excel? Solução: Para isto, siga estes procedimentos: 1. Crie uma planilha cuja primeira linha será o cabeçalho para suas colunas.…
KB-47756: Lendo valores de um arquivo CSV.
Autor
Mateus Machado
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…