The OPC Client is the logical counterpart to the OPC Server. ![]() The OPC Router can also use the OPC UA Server Plug-in to provide data as an OPC server. Manufacturers of independent OPC Servers include Kepware (over 150 drivers available), Softing, INAT and Matrikon. In addition, the manufacturers of independent OPC servers offer more functions, in some cases more simple operation and better stability. This way, it is possible to provide OPC communication even to those systems for which the manufacturer does not offer an OPC server of its own. These servers differ by a broader support of communication protocols. In addition to OPC Servers from the manufacturers themselves, there are providers who develop independent OPC Servers. The OPC Server from the manufacturer can be supplied as stand-alone software or as an embedded OPC Server on the device or the machine controller. The basic idea of OPC is that the manufacturer of the hardware provides an OPC Server for his system and therefore allows standardized access. ![]() OPC Servers are provided by different parties. Inside, the proprietary communication protocol for controlling the manufacturer is implemented. ![]() It is a software that implements the OPC standard and thus provides the standardized OPC interfaces to the outside world. The OPC Server is the basis of OPC communication.
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