In today’s process control environment, OPC is the protocol of choice for the following reasons:
But networking OPC is challenging. The networking protocol for OPC is DCOM, which was not designed for industrial real-time data transfer. Tunnelling is the answer to overcoming the limitations of DCOM.
The problem with DCOM is that it:
This whitepaper takes a closer look at how tunnelling solves the issues associated with DCOM, and how the Cogent DataHub provides a secure, reliable, and easy-to-use tunnelling solution with many advanced features.