This is something of a follow-up to the issue in
How to Create and Write a Simple Complex Type
.
We are trying to call a method on the server which uses a complex type as the first argument. The code we are trying is as follows:
Code:
{
// Instantiate the client object.
var client = new EasyUAClient();
// Define the structured data TYPE. Including the location of the type definition in the PLC.
var myStructuredDataType = new StructuredDataType(
"ST_OpcMoveAbsoluteData",
"nsu=urn:BeckhoffAutomation:Ua:PLC1 ;ns=4;s=<StructuredDataType>:ST_OpcMoveAbsoluteData")
{
new DataField("fTarget", UAOpcBinaryStandardDataTypes.Double),
new DataField("fVelocity", UAOpcBinaryStandardDataTypes.Double),
new DataField("fAccel", UAOpcBinaryStandardDataTypes.Double),
new DataField("fDecel", UAOpcBinaryStandardDataTypes.Double),
new DataField("fDelay", UAOpcBinaryStandardDataTypes.Double)
};
// Create an instance of the data object to write to the PLC.
// The data collection was created apparently by the type definition
// so we can change them instead of "Add" them. Though, the library
// tolerates an add fine.
var myStructuredData = new StructuredData(myStructuredDataType);
myStructuredData.FieldData["fTarget"] = new PrimitiveData(1000d);
myStructuredData.FieldData["fVelocity"] = new PrimitiveData(100d);
myStructuredData.FieldData["fAccel"] = new PrimitiveData(50d);
myStructuredData.FieldData["fDecel"] = new PrimitiveData(50d);
myStructuredData.FieldData["fDelay"] = new PrimitiveData(5d);
var myGenericData = new UAGenericObject(
myStructuredData,
new UAModelNodeDescriptor(
"opc.tcp://192.168.1.20:4840",
"nsu=urn:BeckhoffAutomation:Ua:PLC1 ;ns=4;s=<StructuredDataType>:ST_OpcMoveAbsoluteData"));
object[] inputs =
{
myGenericData,
0
};
TypeCode[] typeCodes =
{
TypeCode.Empty,
TypeCode.UInt16
};
object[] outputs;
Console.WriteLine();
Console.WriteLine("Calling...");
try
{
outputs = client.CallMethod(
"opc.tcp://192.168.1.20:4840",
"ns=4;s=OpcCommunication.OpcEffectLinear[1]",
"ns=4;s=OpcCommunication.OpcEffectLinear[1]#MoveAbsolute",
inputs);
}
catch (UAException uaException)
{
Console.WriteLine("*** Failure: {0}", uaException.GetBaseException().Message);
return;
}
}
when attempting to execute that block, there is always an exception thrown when the CallMethod tries to happen. Exception is a System.ArgumentException:
Code:
System.ArgumentException
HResult=0x80070057
Message=Value does not fall within the expected range.
Source=OpcLabs.EasyOpcUA
StackTrace:
at OpcLabs.EasyOpc.UA.OperationModel.UAException.Create(Exception innerException)
at OpcLabs.EasyOpc.UA.IEasyUAClientExtension.CallMethod(IEasyUAClient client, UACallArguments callArguments)
at OpcLabs.EasyOpc.UA.IEasyUAClientExtension.CallMethod(IEasyUAClient client, UAEndpointDescriptor endpointDescriptor, UANodeDescriptor objectNodeDescriptor, UANodeDescriptor methodNodeDescriptor, Object[] inputArguments, Type[] inputTypes)
at OpcLabs.EasyOpc.UA.IEasyUAClientExtension.CallMethod(IEasyUAClient client, UAEndpointDescriptor endpointDescriptor, UANodeDescriptor objectNodeDescriptor, UANodeDescriptor methodNodeDescriptor, Object[] inputArguments)
at QuickOpcHmcTest.Form1.buttonMethodStructure_Click(Object sender, EventArgs e) in C:\Users\cadomanis\Source\Repos\quickopchmctest\Form1.cs:line 1361
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at QuickOpcHmcTest.Program.Main() in C:\Users\cadomanis\Source\Repos\quickopchmctest\Program.cs:line 19
We have had plenty of success calling methods on the server that only take simple types as the arguments. Wondering if there is something you can pointto in our code on what might be causing these issues.
Thanks
