我不会回放它。

I get this error when I import the package to Unity:

Assets/game4automation/private/RuntimeUI/SceneMouseNavigation.cs(801,38): error CS0103: The name 'SpaceNavigator' does not exist in the current context

Hi

I wanted to achieve a circular conveyordemo effect (Fig1), a reference to radialConveyordemo (Fig2), but the MU transported in a circular conveyordemo is skewed in position, and I froze the XYZ rotation of the MU

Fig 1

Fig 2

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.

Hello,

we are using the PLCSim Advanced Interface.

We can Import the PLCSignals without any Troubles:

The first time that we start the simulation in Unity everything is working fine (COM OK).

But after we stop the unity editor and try to start again, we get “No Mutex”... so no communication is established between the plc and Unity.

We found out that creating a new PLC Instance and re-importing the signals “fix the error”... but just for the first run. Then we have to repeat the process of creating a new PLC again and again...

Could be some background process blocking the communication? Thank you in advance.

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 everyone,

I'm working with the OPCUAInterface component in realvirtual.io to connect Unity to a Siemens S7-1500 PLC via OPC UA, and I'm running into a frustrating issue with signal direction mapping.

Setup:

• PLC: Siemens S7-1500

• Unity side: Using OPCUAInterface from realvirtual.io

• In the PLC (TIA Portal), I've configured:

  • .inputs variables as Read-Only (HMI accessible: Read only)

  • .outputs variables as Read/Write

• In Unity:

  • I've tried enabling/disabling Automatically Input On Write Signals

  • I've set Regex Write Nodes = (?i)\.outputs to match output variables

However, no matter what combination I try, the imported signal directions are reversed:

• .outputs are imported as Input ❌ (they should be Output)

• .inputs are imported as Output ❌ (they should be Input)

 What I Expect:

Based on my understanding of realvirtual.io's signal model:

• Input = Unity reads from the PLC (e.g., sensors, status)

• Output = Unity writes to the PLC (e.g., buttons, control commands)

I expect .inputs to be imported as Input, and .outputs as Output.

 Temporary Workaround:

I'm currently using a custom Unity script that runs after import and forcibly sets the signal direction based on the variable name (.inputs → Input, .outputs → Output).

This works, but feels like a hack and not a long-term or scalable solution.

What I'm Asking:

1. Is this a known limitation of Siemens OPC UA Server? (Does it misreport variable access rights?)

2. Is there a way to fully customize signal direction logic during import in OPCUAInterface?

3. What’s the recommended best practice for Siemens OPC UA + Unity signal mapping?

What happened to shoe sorter model in latest Unity 6 updates. ? I updated model but now shoes do not start at conveyor front but they just march forward leaving conveyor belt.