| 摘要 |
PURPOSE:To effectively execute load dispersion by successively applying a start receiving priority order to respective channel routes receiving answers during the use of a control device and applying the priority order again only to the channel routes receiving the start command and reporting the release during the use of the control device. CONSTITUTION:A using answer storing part 12 stores 'CONTROL DEVICE IN USING' answers outputted from a using answer part 11 to respective channel routes. A 1st start control part 13 applies a start receiving priority order to one of other channel routes in accordance with the updating order of the prescribed priority order at the time of answering 'CONTROL DEVICE IN USING' to other channel routes at the end of I/O processing executed by coupling with a certain channel route, and when the channel route receiving the priority order is started, reports 'RELEASE OF USING STATE OF CONTROL DEVICE' indicating that the use of a channel cross call device 10 is released. Immediately after reporting 'RELEASE OF USING STATE' to a certain channel route, a 2nd start control part 14 allows to receive only access start from the channel route. Consequently, load dispersion can be effectively executed. |
