opcsample issues

Data Change Event is not in Sequence

1

We are using GodSharp OPC DA to read Kepware tags and have subscribed to the data change event but we suspect data change event is not getting triggered in sequential...

RamDinesh94

System.Runtime.InteropServices.COMException

3

I am following the code provided in the opcsample/Program.cs and I am getting the below exception. Should I register any of the com dll's using regsvr? Please advise. System.Runtime.InteropServices.COMException: 'Retrieving...

avnet78

cannot connect KeepServerEx6.1

1

when i use opcsample to connect my keepserverEx6.1 and I get the following error: System.InvalidCastException:“无法将类型为“System.__ComObject”的 COM 对象强制转换为接口类型“OpcRcw.Comn.IOPCServerList2”。此操作失败的原因是对 IID 为“{9DD0B56C-AD9E-43EE-8305-487F3188BF7A}”的接口的 COM 组件调用 QueryInterface 因以下错误而失败: 拒绝访问。 (异常来自 HRESULT:0x80070005 (E_ACCESSDENIED))。” ![图片](https://user-images.githubusercontent.com/15796964/233548394-5205c316-8499-44d0-a52c-d4c890af3150.png) here is...

wqqwqq666

Cannot connect to OPC server

3

I have registered the opcdaauto.dll and now I am seeing another exception in the logs: System.Runtime.InteropServices.COMException (0x800706BA): The RPC server is unavailable. (Exception from HRESULT: 0x800706BA) at OPCAutomation.IOPCAutoServer.Connect(String ProgID, Object...

avnet78

Opc.Ua.ServiceResultException: 'SHA1 signed certificates are not trusted.' when I try to connect with user and password.

1

When I try to connect with user and password I get a Opc.Ua.ServiceResultException with this message: "SHA1 signed certificates are not trusted." This is my code ` OpcUaClientBuilder builder =...

AlessandroVaia