GSK980TDi User:
I need a second Limit X when the door is open, because the working X limit is X200, and when then door is closed

This is because the spindle can only enter to the change tool area with the door open at that X200 second limit +.
With the door closed it must not pass the X0 limit, otherwise it collides with the door.
It has 2 positive limits, selectable according to the state of the door.

This is the machine with the door closed.
Attached you will find a video with tool changing with the door open.. 


CNCmakers: 
The first limit can be set on Parameter No.45 and No.46
The second limit can be set on Parameter No.1270 and No.1271