in the meantime, I have changed into the xml config file for Sony A7S the CCD_FRAME section which was popping in the logfile as an error.
2018-05-18T16:26:17.078 CEST DEBG ][ org.kde.kstars.indi] - Sony DSLR Alpha-A7S (Control) : "Error: Invalid range for Max. Width (CCD_MAX_X). Valid range is from 1 to 16000. Requested value is 0 "
[2018-05-18T16:26:17.083 CEST INFO ][ org.kde.kstars.indi] - Sony DSLR Alpha-A7S (Control) : "[INFO] Upload settings set to client only. "
[2018-05-18T16:26:17.084 CEST DEBG ][ org.kde.kstars.indi] - Sony DSLR Alpha-A7S (Control) : "Error: Invalid range for Left (X). Valid range is from 0 to -1. Requested value is 0 "
Section of Sony DSLR Alpha-A7S (Control)_config.xml file in .indi directory