並前往http://w3.uch.edu.tw/meplc/MAIN/15.%E4%B8%89%E8%8F%B1FX2N%E7%B3%BB%E5%88%97PLC%E6%87%89%E7%94%A8%E6%8C%87%E4%BB%A4%E9%9B%86.pdf