SYSTEM AND METHOD FOR CONTROLLING PRIORITY OF LOT IN MANUFACTURING EXECUTION SYSTEM

摘要

PURPOSE: A method for controlling priority of a lot in a manufacturing execution system(MES) is provided to shorten an interval of process time by automatically making a priority list of the lot in the MES. CONSTITUTION: Queue time and process time in every process is arbitrarily inputted through a control computer(20) for controlling production to set a setup value. Start time and finish time in every process is inputted through an equipment computer(10) for controlling an item regarding a process for fabricating a product to set a measure value. A ratio of a measure value to a setup value is determined to obtain process cycle time substantially used in every process. The process cycle time to use is calculated according to the measure value reflected on the setup value. The priority list of the lot is made according to the result of calculation. The priority list of the lot is displayed on a screen.