31.01.2022, 08:52
(25.01.2022, 13:51)Daniel Wrote: We think it is related that very old HW like your LM3 did use Siemens TP-uart and long frames might not work at all for it.
Try enabling Use slow bus communication in ETS.
Yes, we encountered the same problem one time with a zennio device and that worked. We asked to the Zennio staff and they were so kind and pretty fast to respond.