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廈門市泰尼電器有限公司
主營產品： AB模塊PLC |
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廈門市泰尼電器有限公司
主營產品： AB模塊PLC |
| 參考價 | 面議 |
1771-NBV1==1771-NBV1
==
CC—Link總線通信
2．1 CC—Link的通信原理
CC—Link的通信形式可分為2種方式：循環通訊和瞬時傳送。循環通訊意味著不停地進行數據交換。各種類型的數據交換即遠程輸入RX，遠程輸出RY和遠程寄存器RWr，RWw。一個從站可傳遞的數據容量依賴于所占據的虛擬站數。占據一個從站意味著適合32位RX和／或RY，并以每4個字進行重定向。如果一個裝置占據兩個虛擬站，那么它的數據容量就擴大了一倍。除了循環通信，CC—Link還提供主站、本地站及智能裝置站之間傳遞信息的瞬時傳送功能。信息從主站傳遞到從站，信息數據將以150 B為單位分割，并以每批150 B傳遞。若從從站傳遞到主站或其他從站，每批信息數據zui大為34 B。瞬時傳送需要由指令FROM／TO來完成，瞬時傳送不會影響循環通信的時間。限于篇幅，本文只介紹了主站與遠程設備站之間的通信關系，其通信關系如圖1所示。主站與遠程設備站之間的通信原理如下：
：張亮（工程師） 專線：
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