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(1) ��S7 - 414H ��ϵ�y(t��ng)��Ԍ��F�p��Ԅ��ГQ��,��ص�CPU ��F��ϕr,��һ��CPU �Ԅӵؽ��CPU �Ĺ��,�ГQ�r�g��뼉,��ֵı��C��ϵ�y(t��ng)�İ�ȫ�\��,��

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(4) ϵ�y(t��ng)��{ԇ�^��ڹ�ˇҪ��׃��^��,��Ąӱ��^�l��,��T��STEP7 ��ܛ��ṩ��Ƶķ��IEC1131 �˜ʾ��̹��, ��ΈD(LAD2ER) ,��Z��( STL) ��B�m(x��)��܈D( CFC) ,��܈D(SFC) ,��Y��Z��( SCL) ,�Ҹ��N��̹��߿ɻ��ʹ��,��÷ǳ��,��ϵ�y(t��ng)�Ę˜ʹ��܉K��,��˾��Ч��,�s��˹��ڡ�

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(2) PLC ��Ӳ��,��c�΂�PLC �]��κ΅^(q��)�e,��Ŀ�OӋ�{ԇ�в��Ҫ��^��Ŀ��],��˿��԰Ѹ��ľ��ڌ��ˇ�^�̵��,�O��ع�(ji��)�s�˕r�g�;��

(3) ��ϵ�y(t��ng)��PLC �ͽM�B(t��i)ܛ��x��ͬһ�ҮaƷ,�ɳ��Ȳ��f�h,��YԴ��Ժ�,��Ը�,��Rȫ,�M�B(t��i)��Ѻ�,��

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[1] �޴��l(w��i),��ΠN�ǡ��µȡ�, �Ԅӿ��ڻ��Wˮ�еđ��á�,ɽ�|ú̿�Ƽ�,2003 ��6 ��
[2] �޴��l(w��i),��ΠN��,��¡��\��B͸ˮ̎��ϵ�y(t��ng)�İ�ȫ��ϴ�ʩ��,ɽ�|ú̿�Ƽ�,2005 ��6 ��
[3] �ζ��͡��Z��܊��̓�M�x��ĺ��ܺ�ˮ��y��ƽ�_��ˮ̎��Ԅӻ��W,2006 ��
[4] ��T�ӹ��I(y��)ͨӍ��F��O��aƷĿ�2006 ,STEP7. 5. 3 ��փ�

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