Connectivity Software User's Guide and Reference
Examples - OPC Classic Specialized - Kepware KEPServerEX - Read item value

.NET

// This KEPServerEX example shows how to read and display value of a single item.
//
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// OPC client and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-ConnectivityStudio-CSharp .
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using System;
using OpcLabs.EasyOpc.DataAccess;
using OpcLabs.EasyOpc.OperationModel;

namespace DocExamples.Specialized
{
    partial class Kepware_KEPServerEX
    {
        public static void ReadItemValue()
        {
            // Instantiate the client object.
            var client = new EasyDAClient();

            Console.WriteLine("Reading item value...");
            object value;
            try
            {
                value = client.ReadItemValue("", "Kepware.KEPServerEX.V6", "Simulation Examples.Functions.Ramp1");
            }
            catch (OpcException opcException)
            {
                Console.WriteLine("*** Failure: {0}", opcException.GetBaseException().Message);
                return;
            }

            Console.WriteLine(value);
        }
    }
}