Dear all,

I'm having problems to connect to a remote OPC UA server using the OPCUA Interface Component.

I followed the "Connection troubleshouting" guidelines provided in "/game4automation/Documentation/opcua.html".

Configuring the OPC Server with "No security certificates and passwords" I could connect OPC Watch with the server (see Image):

However, when I tried connecting through the Unity OPCUA Interface:

I get the following error message:

OPCUA Interface - Error in activating session [BadUnknownResponse]
UnityEngine.Debug:LogError (object)
game4automation.OPCUA_Interface:Connect () (at Assets/game4automation/private/Interfaces/OPCUA4Unity/OPCUA_Interface.cs:179)
game4automation.OPCUA_Interface:EditorImportNodes () (at Assets/game4automation/private/Interfaces/OPCUA4Unity/OPCUA_Interface.cs:246)
game4automation.OPCUAInterfaceEditor:OnInspectorGUI () (at Assets/game4automation/private/Interfaces/OPCUA4Unity/private/Editor/OPCUAInterfaceEditor.cs:20)
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

As it can be seen in the last image, I'm using Unity 2021.3.2f1 Editor with Game4Automation Digital Twin Professional 2020.

Any idea of what I'm missing?

Thank you in advanced.

Which version of robodk is compatible with game4automation opc ua or game4automation professional. I ask, because I want to communicate robodk 4.0 with game4automation professional.

Hello,

I was wondering when will OPC UA for Unity 2019 will be supported?

With kind regards,

Stan (Developer at Siemens)

Hi, I'm trying to read and write value of nodes from OPCUA Server using realvirtual Pro 2022, and here is the situation:

1.OPCUA server connection works good, read and write also works good on OPC Watch.

2.In Unity Editor (2022LTS 3.45 + realvirtual Pro 2022), it also successfully Import all the 63 Objects of Top node 'ns=3;i=2269' (LNGDT_FI3080.PV)

3.However, there is no value has been properly imported for ALL of the nodes. (ex, IP_INPUT_VALUE)

4.I checked the Node ID in OPC watch for the same object (IP_INPUT_VALUE), and I see the different type of the Node ID; 

1) OPC Watch: ns=3;b=AAAAAAAAAADgCAAAAABZdMsDAAA= (Hexadecimal String)

2) Unity Editor:  ns=3;bs=0x0000000000000000E008000000005974CB030000 (ByteString)

5.So I changed the Node ID in Unity Editor from ByteString to Hexadecimal String, still doesn't work. Is there any way to fix this problem?

Hello,

i´m using the OPCUA4Unity standalone package to communicate with my opc server.

Everything is setup correctly and i can connect to the server, import and read nodes.
Unfortunatly i cant get values for arrays though.

Example for the absolutePosition node:
The OPCUA_Node is recognizing that the node is an Array, but still wont fill in any actual values.

I doublechecked the values of the node using the OPCWatch tool:

I cant find anything related in the forums or the documentation.
How to handle arrays?

Kind regard

Mike 

Hello, it seems like we are having an issue with the OPCUA4Unity asset that we want to use for our Hololens build. We created a new project and were able to create a build for the Hololens without any problems. We then imported the asset from the Asset Store and tried to build again, but to no avail. We didn't add the demo scene into the build, so the problem is not with the scene itself. The build settings match the attached screenshot.

After creating the build in Unity, we open the build folder in Visual Studio and launch the .sln file. We select the Release, ARM64 and Device options and start the process. However, the build process gets stuck at a certain point, as shown in the screenshot.

Hi,

I was wondering if It is possible to call methods of a OPCUA server from the unity Side and how it can be done.

Thanks in advances

Dear author, I want to buy your upcua4Unity, but I want to ask you a question. I need to collect data into Unity3d via KepServerEX's UPCUA protocol. I see OPCUAInterface and OPCUA_Node in the API. When the number of OPCUA_Nodes I need increases to 100+ or even 1000+, I can easily iterate the addresses corresponding to the PLC with low latency. Digital increment? Can you give me some better advice?

Hello,

Every time a node I'm subscribed to is read as null, the client disconnects. The type of the node I'm trying to read is a float if that matters.

OPCUA Interface - Subscription with ClientHandle 78 Value Changed ns=2;s=NodeA Value [25,1]
OPCUA Interface - Subscription with ClientHandle 80 Value Changed ns=2;s=NodeB Value [140305,5]
OPCUA Interface - Subscription with ClientHandle 80 Value Changed ns=2;s=NodeB Value [140207,5]

OPCUA Interface - Subscription with ClientHandle 88 Value Changed ns=2;s=NodeC Value [NULL]

OPCUA Interface - Client Disconnected

This happens with any node, whenever a value is written as [NULL]

Any help would be appreciated about how to make it so that the program doesn't crash.

Thank you.