It seems that in your Installation Scripting Define Symbols for Professional are on. I don't know why that happened. You need to deletet that and it should work without changing the code. We are updating today the starter to a new version - I found a bug - so please upgrade to 2020.10 as soon as it is available - in about 2-3h.

Yes, Just checked the PLCSIM Advanced interface intensively yesterday and I was not able to see any connection problems. If you still have problems, please send us your PLCSIMAdvanced memory card content, the TIA Portal project and the full Unity project and I will check on my computer.

It seems that you pushed read from Server. I am sorry this is our mistake, it was a test function. Reading from servers is currently not supported. Currently G4A only works as a Modbus Server. We are going to extend it to client functionality in the next 2 months. So don't press on Read from server.

Did you added the Modbus Data script to your signals to define the modbus adresses of the signals?

How to use Modbus on G4A side is described here:

https://game4automation.com/documentation/current/modbus.html

G4A works as a Modbus server so your PLC needs to write and read from the modbus registers by some small PLC code. We don't have any knowledge about fx3u so you would need to take care about the fx3u side by yourself.

Best regards

I checked again your question. Maybe there is a misunderstanding. In each communication cycle all Input and Output signals are exchanged with the PLC at the same time. So if you modify the signals in Unity they will be both modified at the same time (same PLCCycle) inside PLCSim Advanced.

You could youse PLCSIM Advanced or PLCSIM with NetToPLCSim (https://mirror-networking.com/docs/).

Second solution should work but it is not officially supported.

Hi, there is a problem to connect to your PLC.

Please check if you could ping the PLC's IP address.

Turn off all firewalls on your computer

Configure your PLC with TIA portal like described here: https://game4automation.com/documentation/current/s7tcpip.html#Configuring-the-PLC

You can get it here:

https://game4automation.com/download/OpcWatch.exe

Sometimes it takes long to import all OPCUA nodes. But I still see a connection error in the log.

Could you please try first to connect with OPCWatch (https://www.traeger.de/downloads/opc-ua-development-toolkit) because it uses the same technology. After you are able to successfully connect with OPCWatch (all Firewall and Security issues need to be solved) try to import only a few subnodes with Unity (select a Top-Node-ID in the Unity OPCUA properties).

There seems to be a connection problem. Mabe you need a password or security certificate to login to your server. Please turn of your firewall and turn off on your OPCUA server all security settings.