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@@ -4,7 +4,7 @@ OPC UA in a nutshell
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OPC UA, a collection of services
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-In OPC-UA, all communication is based on service calls, each consisting of a request and a response
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+In OPC UA, all communication is based on service calls, each consisting of a request and a response
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message. Be careful to note the difference between services and methods. Services are pre-defined in
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the standard and cannot be changed. But you can use the *Call* service to invoke user-defined
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methods on the server.
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