Alarm integration

Hi I have a dsc alarm and want to keep my existing setup. I would like the ability to piggyback off of the existing system and be able to see when a door has been opened or closed. I have some z-wave door sensors that allow for one to add an external input. I wanted to see what I can do to put these sensors inline with my existing system. Has anyone done this?

https://community.smartthings.com/search?q=envisalink