Process Portal A 2.1/1 - OPC Adapter, the Connector may crash or spin
A description of this resolution:
- Correction: Patch 3BSE029867C0008 for Process Portal A2.1/1
This patch consists of a new file AdvDsOPCServerAdapter.dll
[ref 3BSE029867D0008 VASMASOITA0387 ]
'Process Portal A 2.1/1 - OPC Adapter, the Connector may crash or spin' resolves the following:
- Process Portal A 2.1/1 - OPC Adapter, the Connector may crash or spin
Process Portal A2.1/1
A race condition sometimes occurs in read and write operations that may, in worst case, crash the Connector or make it spin. In case it spins the AdvDsOPCServer- Adapter process will take about 100% CPU load and requires manual restart. Fail-over to a parallell connectivity server will not be carried out.
If a read/write is made with multiple items, which have different default update rates (configured in the CCA), the OPC Adapter will complete the transaction, i.e. no response to the client is sent - in case the read/write operation is synchronous, the client will hang.
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