A-500PRO with SonicCell sound module to Sonar X1b

I am trying to play the SC sounds from my A-500PRO keyboard but I get no indication of signal send to/from my SC and no sound in Sonar. I've followed the manual and connected midi out from the kb to the midi in of SC. The SC is usb connected to my PC. The SC ouput goes to my Focusrite audio/midi interface audio inputs 3+4. I've checked all the logic and I can't figure out why it doesn't work. Any ideas?