OPC programming technologies are widespread throughout industrial automatization sphere. They were developed in order to provide open communication. Before the first specifications entered the market, equipment manufacturers had been spending a lot of money and time to create accompanying applications. This necessity disappeared on its own after OPC had been introduced. The standard provides an universal data exchange interface which is compatible with equipment of different producers and years of manufacture. There’ve been five specifications released so far. All of them implement a data read and write function. One of the most common is OPC DA. Let’s break it down into details.
This standard is considered to be the leading and the most popular one. Its primary functions are data reading and its subsequent writing. The standard ensures a stable real-time exchange of information between different devices. It’s suitable for working with programmable logical controllers, administration and automatization systems, machines, industrial robots and other engineering solutions.
OPC Data Access implements the following IOPC interfaces:
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