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1、在工业自动化生产过程PLC控制系统的设计方法2008???>24?6SCIENCE&TECHNOLOGYINFORMATION0・？・??PLC?]?C?????o???]???m?????/???t??????????,?m???????w???????B?????(????,???Y?o???????/?????P???f???]??????B0?r???????o???]?????u?????]??????,???V?B??????PLC??????,?????????????o,?????????L?v????，？？？？？
2、？？？？m???4???o?????6?????T?????????t?U,?o???/?????P???????N??????;???????????Y?O?9?????/???T???t????,?]?????0?????????/?????????????t??B0PLC?r?]???/???t?????o,PLC???????N???I?????o???t??????????B0?T??????PLC???t?????????>???????????m???m?U???G??????B01.PLC???t?????????>
3、?????????m???????t???????b??,???b???????]?〜？？？？？mPLC???tB0???????t???????l????,?K??I/O???????F,?P?S???tI/O???????A?x???t???????l????,?4???C???????????E?????8???O?mPLC,?H???m?D???????u???????????tB0?????W?B?T?,????????,?r???????NPLCB0(1)?????K??I/O???????/,???t?????O?9;(2)???
4、o?4?????/????,?A???9???t???????N?????????V;(3)???????????w?T???????l???6???P,????B2???????t???????l?8??;(4)???9???Y?4??????B2????,?/???O?9???f??B2???]????,???????%?????????t;(5)???????Y?L???????I?/???P????;(6)???????????G???9???t???I???????????I?UB01.1PLC?o???N???????>???
5、1PLC?????]??PLC?o?l???????t????,?????????S??PLC??????B2???????IB0???Y???????????f???]?IPLC?????????T??????B0?r??PLC???m?m?O?H?o?E5?N?O?H???????w?T5?????t?????N?O?H????9Q99?99999?M?9??9?99?9?o99?M?99T??B09?•/，•且且JL•••••X▼a•JL•••••,•••••••••丄=•••••••••••Vx•••X•••且••vX••???????
6、???????PLC?o???N???????>???1,???????8B0(1)PLC?o???N???f???8??I/0????BO?p?????t?????K???????????I(???N??B2????????B2??????????)B2???????I(????????B2?u????B2?????I?o????)????A/DB2D/A???????i??,????I/O????B0???>?????N????????(????10%),?????????L?6?????????P???????p??B0(2)
7、PLC???>?p??I/0???????0?H,?????????/?N?????????nBO?m?N?????????????H?d?????N??????????,???>?]???J?????T????25%B0???P,?????P?T????,?E?C?s?m???>????B2???tB2?????I???????????????!??,?????V?V?s???T??,???2????????B0(1)?mPLC?o???N???&???8?????t?????LPLC????B2???????E?C
8、?VB0?????]???o???????tJ/O?????O?/5?O????PLC???????/??；?x9999?O9?99?99O⑷C血血9
