Opta no communication with Arduino PLC IDE - Invalid DFU suffix signature

Official Hardware Opta
1

The Opta worked fine until I connected to the Cloud using this article.
https://docs.arduino.cc/software/plc-ide/tutorials/plc-ide-cloud-support/
Through the cloud, I connected the device to the Opta. No errors.
When connecting to the Opta PLC with the PLC IDE, I am getting the following errors.

Error Message Arduino PLC IDE 2
Error Message Arduino PLC IDE 21287×726 81.2 KB

I then put it in bootloader mode and tried to connect using PLC IDE.
Error Message Arduino PLC IDE 1
Error Message Arduino PLC IDE 11287×726 42.2 KB

The warning is an Invalid DFU suffix signature.
Then I noticed in the article that I needed PLC IDE 1.0.4 or greater. This is not available. I have requested the newest version of the software.
I then started the Arduino IDE to communicate to the Opta. The thinking is to put this in bootloader mode and download a sample program. Resetting the Opta. The program was loaded successfully but with the following errors.
Error Message Arduino IDE
Error Message Arduino IDE1285×724 56.8 KB

Warning: Invalid DFU suffix signature
A valid DFU suffix will be required in a future dfu-util release.
The sample program works with the Opta, but I am completely locked out from communicating to it using the Arduino PLC IDE.
Is there a way to completely clear the memory of the OPTA and not just put it in bootloader mode?
Thank you,
Garry

2

Hi @garryshortt ,

The tutorial Using PLC IDE With Arduino Cloud requires a version ⩾ v 1.0.4 of the PLC IDE & PLC IDE Tools. The tutorial will be compatible with upcoming releases of the software.

Regarding the message displayed in Arduino IDE, it is not an error message. The sketch was successfully uploaded as noticed. Please take a look at this article: https://support.arduino.cc/hc/en-us/articles/4411327110674-Warning-Invalid-DFU-suffix-signature.

To program the Opta in PLC IDE, it is necessary to download the Runtime and connect to the board as indicated in steps 3, 4 and 5 of the following tutorial: https://docs.arduino.cc/software/plc-ide/tutorials/plc-ide-setup-license/

As for the last point concerning the memory , you can consult the following tutorial:
https://docs.arduino.cc/tutorials/opta/memory-partitioning/.

Best,