This interface appears when selecting the Charts } Gantt Charts } Equipment GC (Multiple Batches) option from the main menu.
For a description of the basic functionality of the graph, see Equipment Gantt Chart (Single Batch).
When a multi-batch chart is chosen to be shown, the default number of batches (Nb) shown at first is calculated as follows:
Nb = 1 + [BT / CT], where
[ BT/RCT] is the rounded up integer ratio of the recipe’s batch time (BT) divided by the recipe’s cycle time (CT). The number is chosen this way, so that even if you later view a larger number of batches, all future batch graphs will always have a pattern that can be mapped within this chart (with some offset). In other words, Nb as calculated above, s is the minimum number of batches necessary to plot such that it will capture all possible batch interactions. Of course the number of batches can later be set to any number (select Set Number of Batches from the chart’s command menu).
For information on the right click context menu of this chart, see Context Menu.