No DFU capable USB device available - Opta PLC IDE

Development Tools PLC IDE
1

Hi community, I am new to the Arduino community and I have some issues that I hope I can get some help. I have the opta, and have created some test function block diagram on the PLC IDE. It compiles fine without error. The issue is the download to the PLC that generates a fail with "No DFU capable USB device available"
First I can connect to the target with my USB without any problem. In my device manager I see port 10 and 12 and I believe opta use port 12 to connect to it. So any idea as to why I cannot download PLC code to the Opta. Below is the log

--- Start compilation (PreBuild) 7:34:22 AM ---
--- End compilation (PreBuild) 7:34:22 AM ---

--- Start compilation (PostBuild) 7:34:22 AM ---
Sketch generated, is changed: false
--- End compilation (PostBuild) 7:34:22 AM ---
Waiting for upload port...
No upload port found, using COM5 as fallback
"C:\Users\a88888\AppData\Local\Arduino15\packages\arduino\tools\dfu-util\0.10.0-arduino1/dfu-util" --device 0x2341:0x0364 -D "C:\Users\a88888\Documents\Test1\LLSketch_build/LLSketch.ino.bin" -a0 --dfuse-address=0x08040000:leave
dfu-util 0.10-dev

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2021 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to dfu-util / Tickets

Warning: Invalid DFU suffix signature
A valid DFU suffix will be required in a future dfu-util release
No DFU capable USB device available
Failed uploading: uploading error: exit status 74

2

Same for me, the weird thing is, even though I get the download failure, the PLC runtime code still downloads and functions correctly. I can even go online and in debug mode. However it loses all code after a power cycle.

Edit: Apparently there is only partial Comms functionality when trying to download code using the PLC IDE from a virtual machine. Moving the IDE to the host machine fixed my issue, however compilation is slowed down greatly by antivirus software.

3

if you are on windows 11 24H2 the PLC IDE seems bugged and will not deploy the code I had the same issue had to roll back to 23H2 something in windows 11 24h2 breaks the PLC IDE. You can deploy code just fine with the Arduino IDE or even the initiation sketch but it will not deploy any code.

I tested this on a clean install of windows 11 24h2 and just installed the PLC IDE and confirmed the same thing. On my normal PC I Rolled back to 23H2 and I could program the PLC Again. I opened a Bug report through the contact us and the engineer sated they would setup a test and see if they could Repro it. IF more people submit the Same thing we hopefully can get them to fix it.