anchor.diff:  
   
         ! Read in constant for tower wake model = 0 full potential flow = 0.1 model of Bak et al.
  -   CALL ReadVar( UnIn, FilName, p%TwrProps%Tower_Wake_Constant, 'Tower_Wake_Constant', 'Constant for tower wake model', ErrStat )
  +   CALL ReadVar( UnIn, FilName, p%TwrProps%Tower_Wake_Constant, 'Tower_Wake_Constant', 'Constant for tower wake model', ErrStat, ErrMess )
      IF ( ErrStat /= ErrID_None ) RETURN
   
      ! bjj: should there be a sanity check here, too?
  
positive.code: 
  
        ! Read in number of tower CD entries, NTwrCD
     CALL ReadVar( UnIn, FilName, p%TwrProps%NTwrCD, 'NTwrCD', 'Number of tower CD columns', ErrStat )
     IF ( ErrStat /= ErrID_None ) RETURN
  
     IF (p%TwrProps%NTwrCD < 1) THEN
  
negative.code:    O%ElOut%NumElOut    = 0 ! Initialize the element print array index
     O%ElOut%NumWndElOut = 0
  
     CALL ReadCom( UnIn, InitInp%ADFileName, 'Element table headers', ErrStat, ErrMess)
        IF (ErrStat >= AbortErrLev) THEN
           CLOSE(UnIn)
           RETURN
  