OPC Connection

View the appropriate sub section for resolving communication problems with OPC Servers.

- If you receive an RCW DLL Missing error install the OPC Foundation Core Components and restart the system.

- Use the OPC Foundation Sample Client to verify the OPC Server is working correctly.

- Use the OPC Data Fix to connect to OPC Servers that do not run as a Windows Service.

- If only one OPC Client at a time can connect to the OPC Server set the OPC Server Identity to interactive user.

- View the DCOM Configuration Guide if the Windows Firewall is blocking DCOM access or the default DCOM security is not setup.

- To connect to Remote OPC Servers install the OPC Systems Service on the same computer as the OPC Servers.

- View the following troubleshooting video view step by step instructions on resolving common OPC Server communication problems.

http://www.opcsystems.net/troubleshoot_video.htm

Contact Open Automation Software at 1-303-679-0898 if you have an OPC Server that you cannot connect to.

More:

RCW DLL Missing

OPC Foundation Sample Client

OPC Data Fix

DCOM Configuration Guide

OPC Server Identity

Remote OPC Servers