OPC technology originated more than 20 years ago. When the stable version entered the market, its popularity began to grow steadily. The specifications have found wide application in the field of industrial automation. The high demand for the protocols resulted from the freedom to select a client application. The software allows you to collect information from various facilities of the enterprise. As a result, there was a need to connect the OPC to the network.
When trying to connect a remote OPC DA/HDA server, many people face the problem of configuring connection. This is due to the fact that DCOM does not fully comply with the requirements of the security system. There is another difficulty associated with the use of the OPC through this protocol: the consumption of a large amount of network traffic. Special programs are provided to solve all these problems.
OPC tunneling improves the security of data transmission through special encryption methods. Special programs are used for this purpose. They are called tunnelers or bridges. They change the order of data transfer. It looks like this:
The answers are sent to the client in the same way. This is the principle of operation of most tunnelers. All of them exclude DCOM and replace it with TCP.
On our website, you can buy an OPC Tunneler on favorable terms. The software product uses the OPC UA as an intermediate protocol. It allows you to create structures with a certain number of servers and client applications.
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