hi I am Kashyap,
 
   I have one VMC in my compay. since last 3 months i am facing one problem that is regarding as communication with NC. My cnc control board shows the massage like "atleast one configure module(Y axis) is missed" or sometime it shows like "communication to NC failed".
  I have cheacked all the cables at the axis drive as those all are ok.
  One interesting thing is that when this massage came i just restart the machine for 4 or 5 times sometimes the alarm gets solved.
  One another thing i cannot understand is that, it gives massage in communication log like "communication error in ddl".
 Please suggest me regarding this problem.