Parijat OPC Arbiter (POA) enables classic OPC based client applications to connect with contemporary OPC Unified Architecture (UA) servers. It allows users to maintain the investments in use of OPC-DA legacy infrastructures.

POA is the software proxy that enables OPC classic clients or servers to seamlessly communicate with contemporary OPC UA clients or servers. POA may also ease & facilitate your classic OPC-to-UA migration strategy, allowing gradual adoption of new OPC UA technologies.  With secure communication, it may even eliminate the need to use DCOM if the POA may be installed local to the OPC classic system.