Fix OPC & DCOM connectivity issues like a pro

Use OPC Expert to troubleshoot and diagnose OPC connection problems. OPC Expert provides step-by-step instructions to help establish initial OPC connections and diagnose troublesome disconnection issues. OPC Expert does not require installation, and does not change Windows Registry, making it safe to run OPC Expert on any computer. As an option, OPC Expert can also execute from a “memory stick” so users can carry it with them as they move from computer to computer.

Are you experiencing a specific DCOM or Windows error code. Find a solution on our Support page.

Verbose connection messages help diagnose and establish initial connections. OPC Expert describes each error, its possible causes and provides step-by-step instructions on how to repair the problem. OPC Expert’s directions are easy to understand because they are designed for people without extensive IT or networking experience. These steps help identify issues with networks, firewalls, authentication, authorization, password mismatches, etc.
Runtime communication troubleshooting enables OPC Expert to identify problems causing periodic failures.

  • Network performance assessment enables finding faults strictly due to network communication limitations.
  • Computer monitoring enables OPC Expert to find problems related to operating system issues with changing passwords, firewalls, reboots, etc.
  • OPC server monitoring enables identifying faults related to OPC server failures, or even third-party application failures.
Specific OPC server knowledge enables OPC Expert to provide custom error messages based on the particular OPC server in question. OPC Expert contains specific knowledge on many OPC servers from companies such as Rockwell, Siemens, Schneider, Kepware, Emerson, Honeywell, Matrikon, and others. When troubleshooting connections with any of these servers, OPC Expert uses existing knowledge to tailor its error messages for the specific situation and warn users about OPC server problems such as demonstration timeouts, licensing, user limitations, etc.
OPC Snapshot records all computer settings affecting OPC communication to a file. This saves users from having to save a multitude of screenshots, and traverse through complicated documentation for instructions on how to find specific settings. OPC Expert records all vital operating system and DCOM settings, shows what OPC servers are available (and their settings) and identifies troublesome issues. OPC Expert saves these settings to a file in both HTML and XML formats, enabling users to email their settings to any third party who can open these files using their web browser. OPC Expert can also compare snapshots to determine the difference between them.
Watchdog and trigger capabilities enable OPC Expert to take automated action when identifying user-defined events. OPC Expert can send emails, play a sound file or execute third-party applications or custom scripts.
The event window at the bottom of OPC Expert’s screen shows users each problem in a single location. Users can also review OPC Expert’s log files when running OPC Expert as a Windows service.
OPC Expert does not require installation does not change Windows Registry and is free to download, making it safe to use on any computer. Download OPC Expert and solve OPC connection problems immediately.

Do you need additional options or features specific to your production environment? Do you have any suggestions regarding additional features you would like added? Let us know, and we’ll happily consider implementing them in a future OPC Expert release.