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Goals and Symptoms
PI OPC tool and Matrikon OPC Explorer are reporting errors when connecting to the ION Enterprise OPC Server. The ION Enterprise server was previously correctly reporting data to the PI Historian.
The following error is obtained when trying to connect to the ION Enterprise server:
Facts and Changes
This error is associated to the .Net version which is installed on the server. The above errors will occur if the 1.1 .Net framework used by ION Enterprise has been deleted during a Windows update and replaced by the 2.0 or 3.0 .NET version.
Causes and Fixes
Check which .Net framework version is installed on the machine: