The latest firmware of the device actually already includes the SysCom configuration in the CODESYSControl.cfg, but there are multiple copies in different file locations - perhaps a problem? The Linux commands to read and write using the USB adapter seem to work fine, it just seems that the link for Codesys is not successful. I've tried many variations of the CODESYScontrol.cfg and CODESYScontrol_User.cfg files for SysCom settings but none delivered a good result. The difference is the hardware I am using is an HMI from ifm Electronic (Codesys SP15 Patch1), running Linux version 4.14.98-yocto-standard. ![]() I've been reading through this thread and have tried most solutions to try and achieve RS232 comms via USB adapter.
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