O_WR

 Function
  Set the open for write access flag in a FCREATE/FOPEN/FAPPEND statement.

 Value
  1 = 1b = 1o = 1h

 Remarks
  Files may be opened for read, write or combined read/write access.
  You should only use the access you need to allow other processes to
  open files at the same time in multitasking and networked environments.
  This constant will allow your PPE to write to a file but will restrict
  read access.

 Example

  FOPEN 1,"FILE.DAT",O_WR,S_DN ' Open for write access
  FOR i = 1 TO 10
   FPUTLN 1,"Line ",i
  NEXT
  FCLOSE 1