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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 |
【IC697MDL254】【IC697MDL254】
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1．是否采用PLC
設計一個控制系統，首先應該考慮的是：是否采用PLC。考慮的原則除控制功能外，主要是經濟性和可靠性。如果被控制系統很簡單，I/O點數很少，或者I/O點數雖多、但控制不復雜，特別是各部分相互很少，那就沒有必要采用PLC。下列情況可考慮采用PLC：
1）I/O點數多，控制復雜。若用繼電器控制需大量的中間繼電器、時間繼電器、計數器等。
2）對可靠性要求特別高，用繼電器控制不能滿足。
3）生產需要經常改變控制程序和修改控制參數。
4）可以用一臺PLC控制多臺設備。
：張亮（工程師） 專線：
24小時移動專線： 【】
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