Free Stuff - OPC Utilities

Advosol

Error Lookup

Provides a lookup facility for OPC error codes and quality codes. Supplied as part of Advosol's OPCDA.NET client component evaluation download (requires registration).

Advosol

OPC Security Analyzer

Utility designed to help diagnose problems related to security/permissions settings for OPC DA servers.

ascolab GmbH

OPC Lookup

Provides a lookup facility for OPC error codes and quality codes. Requires .NET framework.

Graybox

OPC DA Auto Wrapper

The OPC DA Automation specification was originally intended primarily to support developers using VB 6 (and earlier versions). With the rise of dynamic languages such as Python and Ruby, this specification is now seeing renewed significance. The DA Automation specification is normally implemented using a wrapper DLL that sits above conventional DA servers. Inexplicably, OPC Foundation's own wrapper DLL is not publicly available. Graybox provides this mature alternative, which is updated regularly.

Jemmac

OPCFailover

Unique patented tool which provides redundancy to OPC solutions without adding to the runtime complexity, or introducing additional points of failure. 30-day trial download available.

Kassl

OPC Server Unregister Utility

Freeware 'crap cleaner' for removing unwanted or ghost OPC server registry entries.

MatrikonOPC

OPC Analyzer

Free utility used to find OPC problem areas and back up important OPC-related files. Checks common problem areas such as firewall and DCOM settings.