| 摘要 |
<p>PURPOSE:To simplify the program structure of a central control unit by allocating carrier work by means of selecting appropriate data among carrier request data which respective control means receive from a central control means. CONSTITUTION:When an article carry instruction is given, the central control unit 7 generates carry request data and transmits it to respective individual controllers 10 from a transmission/reception device 18. The individual controllers 10 receive carrier request data in the middle of work and store them in RAM 16. A truck in the middle of standby-travel judges whether carry request data is to be processed or not when there is carry request data to be judged when it reaches a prescribed place. When carry request data is not selected, standby- travel is executed. When it is judged to be processed, the individual controllers 10 transmit effect that carry request data is selected to other individual controllers 10. The other individual controllers are prevented from selecting carrier request data.</p> |
