try red O0:0.0 error code =-29

[Longlong105]

try red
"var tag4 = new Tag("192.168.0.100", CpuType.SLC, "O0:0.0", DataType.Int16, 5);"

return error code =29

[timyhac]

Hi @LittleWll - this looks like you're either using a very old version or are using a different wrapper. Can you confirm you are using this nuget package: https://www.nuget.org/packages/libplctag/

[timyhac]

@LittleWll the solution from libplctag.NET's perspective would be for you to update to v1.0.1

I daresay the error code relates to the core library error codes which you can find information around here: https://github.com/libplctag/libplctag/wiki/API#status-codes

[Longlong105]

try codes in https://github.com/libplctag/libplctag use the code Examples---> CSharp DotNetFramework---ExampleRW.cs ! `Console.WriteLine($"\r\n ExampleRW ");

        const int TIMEOUT = 5000;

        //DINT Test Read/Write
        var myTag = new Tag<IntPlcMapper, short>()
        {
            //Name of tag on the PLC, Controller-scoped would be just "SomeDINT"
            Name = "N7:0",

            //PLC IP Address
            Gateway = "192.168.1.110",

            //CIP path to PLC CPU. "1,0" will be used for most AB PLCs
            //Path = "1,0", 

            //Type of PLC
            PlcType = PlcType.Slc500,

            //Protocol
            Protocol = Protocol.ab_eip,

            //A global timeout value that is used for Initialize/Read/Write methods
            Timeout = TimeSpan.FromMilliseconds(TIMEOUT), 
        };
        myTag.Initialize();

        //Read tag value - This pulls the value from the PLC into the local Tag value
        Console.WriteLine($"Starting tag read");
        myTag.Read();`

connect the 1747-L552 cpu variable initialization error initialization string {protocol=ab_eip&gateway=192.168.1.110&cpu=SLC&elem_size=2&elem_count=64&name=N7:0}