Thank you for your reply.
I have a USB Cable from TS 590s to RigPi.
I have also the RigPI MFJ Cable for Kenwood TS 590s from the DATA jack on TS 590s to the audio jack on the RigPi.
I use Win 10 on laptop and headset.
I have done all meny settings from the Kenwood TS 590s(sg) PDF file.
All is working very good remote exept no modulation and button Power ON doesn´t work.
Thanks in advance,
Regards from Loic, SM5VFE