likert scale for negative relation of variables

I have a question with likert scale 1(disagree) to 5 (agree). my latent variables with negative effect will also be in same measurement scale (i-e. 1(disagree) to 5 (agree)).because when i enter the data in SMART-pls it does not show the negative sign on those latent variables arrows while some positively effecting variables answers comes with negative value. what does this means?