; OPC UA STRUCT (KUKA KRL)
    STRUC STRC_BUNDLE_DIMENSION INT I_LENGTH, INT I_WIDTH, INT I_THICKNESS
    STRUC STRC_BUNDLE_INFO CHAR C_DESCR[20], STRC_BUNDLE_DIMENSION DIMENSION
    DECL STRC_BUNDLE_INFO STRC_ARRAY_BUNDLE_INFO[64]

// C# class
 internal class BundleDimension{
        public int Thickness{get;set;}
        public int Width    {get;set;}
        public int Length   {get;set;}
    }
    internal class BundleInfo{
        public string          Description    {get;set;}
        public BundleDimension BundleDimension{get;set;}
    }

OPC UA service result - {BadWriteNotSupported}. The server does not support writing the combination of value, status and timestamps provided.
+ A list of parts provided (or not provided) to the Write operation follows. Value: yes, index range: no, source timestamp: no, server timestamp: no.
+ The node descriptor used was: NodeId="ns=5;s=MotionDeviceSystem.ProcessData.STEU.$config.STRC_ARRAY_BUNDLE_INFO[64]".
+ The client method called (or event/callback invoked) was 'WriteMultiple'.

var readValues = client.ReadValue(uaEndpointDescriptor, uaNodeDescriptor);

var readValues = client.ReadValue(uaEndpointDescriptor, uaNodeDescriptor);
if(readValues is Array valueArray){
foreach(var value in valueArray){
    if(value is UAGenericObject uaGenericObject){
        var sequenceData = (SequenceData)((StructuredData)uaGenericObject.GenericData)?.FieldData["Elements"];
        if(!(sequenceData is null)){
            ((PrimitiveData)(sequenceData.Elements[0] as StructuredData)?.FieldData.Values.ElementAtOrDefault(1)).Value = "NEW VALUE";
        }
    }
}
var writeResult = client.WriteMultipleValues(new[]{
    new UAWriteValueArguments(uaEndpointDescriptor, uaNodeDescriptor, valueArray)
});
Console.WriteLine(writeResult[0]
    .ToString());