0x80040112 DCOM error (RSLinx OPC server): When connecting to Rockwell RSLinx OPC server, OPC Expert (and other applications) may show DCOM error 0x80040112. This error specifically informs users their [...]
How to install Microsoft SQL Server 2017 Express Edition and SQL Server Management Studio (SSMS). Video also shows how to configure TCP/IP settings for port 1433. Download and [...]
Create a Snapshot of DCOM settings affecting OPC communication Record all DCOM settings accurately Tools Snapshot of OPC settings Click 'create snapshot' OC Expert will create a Snapshot [...]
Running OPC Expert as a Windows service enables Windows to automatically startup OPC Expert when Windows starts. Tools Options Service Ensure 'Run OPC Expert as a Windows Service' [...]
OPC Expert is a tool to view OPC data and troubleshoot connections. In this video tutorial we connect to local and remote OPC servers, and view real-time automation data.
OPC relies on DCOM, which uses reliable TCP/IP communication. TCP has built-in automated error recovery. So when a network packet is lost, TCP communication ensures the packet is automatically [...]