arduino due and simulink connect, not showing display and scope

I have some problem in arduino due and simulink connect.

when I was connect complete arduino due and simulink. than I test for blink example digital pin 13.

blink example also OK. but problem becoming connect scope or display. everything not showing in scope grape and display number.

even constan block in number '1', display only '0'

someone slove this problem please tell me...

thank U