APPARATUS FOR ANALYZING PROGRAMMABLE LOGIC CONTROL AND METHOD FOR ANALYZING PROGRAMMABLE LOGIC CONTROL

摘要

PURPOSE: An apparatus for analyzing programmable logic control and a method for analyzing programmable logic control are analyzing a signal between operations by obtaining data of operation and signal timing from a PLC. CONSTITUTION: In an apparatus for analyzing programmable logic control and a method for analyzing programmable logic control, an address extracting unit(202) extracts the address of a signal and an operation used in a PLC controlling a device for manufacturing the liquid crystal display. A log data collection unit(203) collects log data of signal and operation which are generated in driving the device. A log data extracting unit(204) extracts only one of log data to be analyzed A PLC analysis chart forming unit aligns the analyzed data by a certain reference and draws PLC analysis chart displaying a required time.