Transmit cc from cubase to controler

Hi.im using cubase 11.and keylab88 .older version.the controller knobs send information to cubase,but im trying to send back from cubase to the controller,that the values in the incoders will change ecordinly.
Im using in the keylab in relative mode.and in cubase in the generic remote .relative and transmit,but still no luck.
What am i missing?