| 摘要 |
<p>PURPOSE:To control the decision for the valid or invalid result of calculation by obtaining a limit link where the read spot times are secured and the result of calculation concerning the time relation is held and at the same time invalidating the read limit link. CONSTITUTION:The minimum or maximum time given to a 1st limit link 20 is changed, and both end points of the change limit link are read out at a starting point 21 and a terminal point 22. A temporary holding link is read out at the 1st and 2nd spot times 10 forming the both end points and based on the information on a list 14 of the temporary holding link. If temporary holding link is not available, the processing is finished. If a temporary holding link is available, the valid/invalid instruction 25 of the link is invalidated. Thus the link 20 can be invalidated when a change is produced to the information on a 2nd limit link given to the spot time that affects the link 20 holding the result of calculation.</p> |
