Where and when do I get a bus from Xian to Wudangshan?

As I remember, there is a long distance coach at the Main Coach Station to Wudangshan, which is opposite to the Main Railway Station. However, I have no idea whether the coach is still operates. You may need to confirm it.
Besides, you can take a train to Wudangshan Station as well. Upon arrival, you can take bus no.202 to Wudangshanmen Station directly. After getting off the bus, you may walk backwards for about 65 yards (60 meters), and then walk around 330 yards (300 meters) along G316. Continue walking 22 yards (20 meters) to Wudang Road, and you can see the scenic spot directly.