I have used this command lines :
cd CITECT\Citect_SCADA_2018\Citect_SCADA_2018\Citect\
setup.exe /v" /qr REBOOT=ReallySuppress INSTALLDIR=\"C:\\Citect\\\" ENGLISH_COMPONENTS=\"\"CITECT_COMMON_APP_V601=\"C:\\Citect\\\" FIREWALL_CHOICE=\"NotModify\" DRIVERS=\"all\""
Also you have to install the Sentinel driver using silent installation parameters : /v"/q"
I have used this command lines :
cd CITECT\Citect_SCADA_2018\Citect_SCADA_2018\Citect\
setup.exe /v" /qr REBOOT=ReallySuppress INSTALLDIR=\"C:\\Citect\\\" ENGLISH_COMPONENTS=\"\"CITECT_COMMON_APP_V601=\"C:\\Citect\\\" FIREWALL_CHOICE=\"NotModify\" DRIVERS=\"all\""
Also you have to install the Sentinel driver using silent installation parameters : /v"/q"