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METHOD FOR CONTROLLING SCAN PROGRAM OF PLC BY DIVIDING PERFORMANCE OF PLC SCAN PROGRAM
METHOD FOR CONTROLLING SCAN PROGRAM OF PLC BY DIVIDING PERFORMANCE OF PLC SCAN PROGRAM
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机译：通过划分PLC扫描程序的性能来控制PLC扫描程序的方法
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摘要
PURPOSE: A method for controlling a scan program of a PLC(Programmable Logic Controller) is provided to increase a scan speed of the program needing a fast/cyclic process, and keep a scan time constant by dividing the performance of a PLC scan program and performing the divided program according to each pattern. CONSTITUTION: A main program and a plurality of sub programs are classified by considering the scan speed(S10). A plurality of patterns is formed by using the classified main/sub programs(S20). An operation of a program is performed by using the formed patterns. The formed patterns are sequentially performed(S30).
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