First, you need a timecode source. I assume you have something here already, or you wouldn't be asking the question. If not, there are a couple of free iOS apps that can generate timecode. Connect the timecode feed to the audio input jack of the production pc (in your case), or the display PC in case you don't need the production PC in the system. On the produciton PC, use the Timecode Tester app to verify proper timecode reception (see page 85 in the WO5 manual). Quit the timecode tester app, and start the production software. Load you show and enable timecode control in Preferences (see page 122). Start your timecode source, and it will drive your main timeline.
In case you want to drive the display PC, see page 268 for the appropriate command.
Hope that helps. I also intend making a video that walks through the procedure within the next few weeks.