thanks to @CodeWasi he did a Profinet capture, after a first investigation, the device send a Status: Error: "RTA error", "PNIO", "RTA_ERR_CLS_PROTOCOL", "AR consumer DHT/WDT expired (RTA_ERR_ABORT)"
we checked the last cycle times, it's mostly below 8ms.
The observation was, reboot/power cylce the device will not force the issue, reboot/power cylce the controller will force the issue.
The question is, why send the device this abort?
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