| 摘要 |
PURPOSE:To minimize the effect of the breakdown of either one of a central control system and a circulation control system, by having the production schedules of the same contents and various data between both systems at a time. CONSTITUTION:The overall control is given to both a central control system 102 and a circulation control system 107 according to a production shedule. The schedule operation is usually carried out in a primary mode under the control of the system 102. If a computer 102a of the system 102 has a fault, a follower mode is indicated automatically or via a console. Thus the operation is controlled hereafter according to the production schedule and under the control of a circulation computer 107a of the system 107. In other words, the system 107 substitutes the function of the computer 102a of the system 102 to control an electronic file 102c, a printer 102f and a color display devide 102e in addition to its original circulation control. Furthermore the system 107 transfers the control commands and data among processing cells 104a-106a. |
