anchor.diff:  
     character(len=mInputLn) inLine
     character(len=cdb_fNameLen) famName
  -  logical cErr
  +  logical cErr, fExists
     integer j, dbUnit, ioStat, iLine, famID
   
     cErr = .false.
  
positive.code:       cdb_cNSig(j) = cdb_famNSig(famID)
      else
        cdb_cNSig(j) = cdb_cNSigOrig(j)
      end if
      cdb_cFamily(j) = famID
  
  
negative.code: 
    if(lnSplit(1) == "NSIG_FAM") then
      ! Collimator Family
      call chr_cast(lnSplit(3), nSig, cErr)
      call cdb_addFamily(trim(lnSplit(2)), nSig, famID, fExists)
      if(fExists .and. .not. cdb_doNSig) then
        ! If setting nsig in fort.3 is disabled, the DB values take precedence, so we overwrite them here
  