| 摘要 |
PURPOSE:To improve an operation efficiency by introducing a hierarchism into the constitution of an event to combine the existing events by an operator and form the new event. CONSTITUTION:The events are combined hierarchically to constitute the new event, the schedule of the slave event of a constituting element of the new event is set by a relative time viewing from a master event constituted of the slave events, the schedule of the slave event is converted into an absolute time by the start of the execution of the master event to decide whether the slave event is executed or not. Namely, the event has a list in which all the slave event names of the constituting element, a standby slave event list at a remarkable time and an executing slave event list. The schedule of the slave event is described in the relative time viewing from the event (relative time making the start time of the event a reference), when the event is started to be executed, the schedule of the respective slave events is converted into the absolute time and when the event is executed, whether the respective stand by events are executed or not is checked. |
