Problem with viewing output of Pspice Simulation of Mixed Signal Design

Hi,

I am trying to simulate a mixed signal circuit. I can measure the output of analog components, but cannot measure output for digital components. I have inserted a sample below. Vo_sch1 is the output of schmitt trigger whereas Vout is the output of analog circuit (which acts as an input for the schmitt trigger).

Please advise how to view both analog and digital outputs in mixed signal circuit.

Thanks,

RL