Hello! I did everything as per your instructions. However, I am having issues connecting to the opta. I can download my configuration on comm 10 and it successfully completes the download. I then have my Modbus configured for comm 11 (Which became available after the download) with all default baud rate, etc. But now when I try to connect to the opta the Arduino PLC IDE will just freeze and become unresponsive and then windows will eventually say that the Ardunio PLC IDE application is not responding...I have done a reset on the Arduino and tried all this again but the response is the same. I am running 1.0.8.0 of the Arduino PLC IDE and I am running 2.3.6 of the Arduino IDE. I have 1.2.0 AIPlc_opta library and 1.0.6 AIPlc_PMC libary installed. I am very close to procuring a Allen Bradley Micrologix820 to utilize instead of this opta because this has been rather frustrating. I personally enjoy a challenge of figuring these kind of issues out. However, between work and my family I just don't have a lot of free time to allocate to this so any tips would be most appreciated. Thank you!
What were the results of this help page...
https://support.arduino.cc/hc/en-us/articles/8824551178780-If-PLC-IDE-isn-t-working-with-your-Opta-or-Portenta-Machine-Control#if-plc-ide-becomes-unresponsive-when-connecting-to-the-device
COM10 is usually the upload/debug port, while COM11 might be the Modbus RTU serial port (if you're using RS485) or a Virtual COM for Modbus TCP, depending on your setup.
Check Device Manager after the reset and download. Label or match the COM ports with what the IDE and system are detecting.
Make sure no other app (like Arduino IDE or serial monitor) is connected to either COM port while using PLC IDE.
It was a actually an issue with the memory flash right from factory. After I flashed the memory parition sketch it all worked properly.
Thanks mate. This solved my problem of freezing PLC IDE when connecting to the com port. Wasted hours on this...
Thanks! this was the final solution to my problem.