Hello,

I downloaded the 21.1 version but I tryed tho generate the TLB units to access the obtjects and I get this error: Error loading the type library/DLL(80029c4a)
But when I select then 2018 version, it's ok.

I only have to read a list of items and write in some of them.
I have another OPC server, without user and password access, and I get the values using ReadMultiple method.

Best regards,
Escarre

Hi!

Thanks! now I get ahother error when I try to read the data:
ClienteOPCUA.Read(ReadArgument.EndpointDescriptor.UrlString, ReadArgument.NodeDescriptor.NodeId.ExpandedText);

The error message: Cannot lock the OPC-UA client session because it is not available. + The cliente method called was 'ReadMultiple'.

ClienteOPCUA is a TEasyUAClient object.

With this code I configured de user/password:
sessionParameters := ClienteOPCUA.IsolatedParameters.SessionParameters;
sessionParameters.EndpointSelectionPolicy.RequireAuthentication := True;
sessionParameters.EndpointSelectionPolicy.AllowedMessageSecurityModes := UAMessageSecurityModes_All;
sessionParameters.UserIdentity.UserNameTokenInfo.UserName := user;
sessionParameters.UserIdentity.UserNameTokenInfo.password := password;

And to every opc Item:
Maquina.Arguments[intVariableActual] := ReadArgument;
ReadArgument := CoUAReadArguments.Create;
ReadArgument.EndpointDescriptor.UrlString := strOPCServer;
ReadArgument.EndpointDescriptor.UserName := user;
ReadArgument.EndpointDescriptor.Password := password;
ReadArgument.NodeDescriptor.NodeId.ExpandedText := nodeId + OPCItem.Text;
ReadArgument.AttributeId := UAAttributeId_DataType;

Thanks!

Hi,

I have the 2018.3 version. I use Delphi 10.3.
I entered this code to put the user/password information.

In SessionParameters:
sessionParameters := Maquina.ClienteOPCUA.IsolatedParameters.SessionParameters;
sessionParameters.EndpointSelectionPolicy.RequireAuthentication := True;
sessionParameters.EndpointSelectionPolicy.AllowedMessageSecurityModes := UAMessageSecurityModes_None;
sessionParameters.UserIdentity.UserNameTokenInfo.UserName := ParamStr2; // cservice
sessionParameters.UserIdentity.UserNameTokenInfo.password := ParamStr3; // paper


In EndPointDescription:

ReadArgument := CoUAReadArguments.Create;
ReadArgument.EndpointDescriptor.UrlString := strOPCServer;
ReadArgument.EndpointDescriptor.UserIdentity.UserNameTokenInfo.UserName := user;
ReadArgument.EndpointDescriptor.UserIdentity.UserNameTokenInfo.password := password;
ReadArgument.NodeDescriptor.NodeId.ExpandedText := nodeId + OPCItem.Text;
ReadArgument.AttributeId := UAAttributeId_Value;

What am I doing wrong?

Thanks,
Escarre