a time span ranging from the start of a plastic pellet weighing sub - cycle to the end of an injection sub - cycle is defined as one data cycle in preparation to present the molding data in an injection molding cycle on a display through the detection thereof . the whole molding data obtained via the detection during the one data cycle period are presented in a single cycle molding data indication frame on the monitor screen of the display , whereby the trouble on the part of a operator to misconceive the displayed molding data for those of another molded product may positively be prevented , and troubleshooting the causes of giving forth a defectively molded product may be done accurately and quickly .