解答:S7-GRAPH 順控器的 FB 參數存儲于實例DB 中,而且FB 參數的存儲器要求取決于已經在 表“Compile / Save”的菜單“Options 》 Block Settings”中的設置。這里設置“FB Parameters”為“User-defined (V5.x)”。
在對S7-GRAPH 順控器進行編譯和保存后,就擁有了的參數集可用于在塊(FB, FC or OB1)中調用S7-GRAPH FB。現在,就可以通過一些參數來確定順控器的狀態或故障步。
輸出參數:
? S_NO:顯示步編號
? S_MORE:可在S_NO 中顯示更多的活動步
? S_ACTIVE:顯示步為活動
? SEF_DISP:只顯示故障步的列表
? ERROR:任意步中的互鎖錯誤
? FAULT:任意步中的監控錯誤
輸出參數:
? DISP_SEF:只顯示故障步
手動模式:不顯示預選步驟
在早期版本的S7 Graph中,使用參數S_NO(步驟號顯示)顯示的步驟集隨模式的改變而改變:
在自動模式下,設置為“所有活動步驟”,在手動模式下,設置為“所有步驟”。
從S7 Graph V5.0及更高版本開始,使用用戶定義的參數集時,S7 Graph FB的接口具有以下影響S_NO輸出參數的參數。
如果在塊的接口上存在參數DISP_SACT,DISP_SEF或DISP_SALL中的至少一個,則不會進行自動切換。
當定序器設置為OFF時,因此不會在“ S_NO”中輸入“ S_SEL”處的預選步驟。
刪除參數DISP_SACT,DISP_SEF,DISP_SALL(以及相應的輸出參數)。然后,當順控器更改為手動模式時,顯示將自動更改為“顯示所有步驟”。或者,您可以在“關閉”模式下使用DISP_SALL更改為“顯示所有步驟”。
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S7-200擴展模塊:
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6ES7223-1PH22-0XA8 EM 223 數字量輸入/ 輸出模塊,8 輸入24 VDC/8 繼電器輸出 6ES7223-1BL22-0XA8 EM 223 數字量輸入/ 輸出模塊,16 輸入/16 輸出24 VDC
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6ES7231-0HC22-0XA8 EM 231 模擬量輸入模塊,4 輸入
6ES7231-7PB22-0XA8 EM 231 2 路輸入熱電阻
6ES7231-7PD22-0XA8 EM 231 4 路輸入熱電偶
6ES7232-0HB22-0XA8 EM 232 模擬量輸出模塊,2 輸出
6ES7235-0KD22-0XA8 EM 235 模擬量輸入/ 輸出模塊4 輸入/1 輸出
6ES7241-1AA22-0XA0 EM 241 調制解調器模塊
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