I have a device that can either be controlled with HTTP request or over a telnet connection. A client whats to be able to connect to this via a OPC server. Would it be possible to create a OPC server that talks directly to the device over HTTP or telnet?
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Yes, that is quite feasible. OPC servers typically convert some native device communication to OPC. I would recommend OPC UA in practice.

Jouni Aro
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