1756-A4
1756-A4
● PLC的輸入與輸出分開走線，開關量與模擬量也要分開敷設。模擬量信號的傳送應采用屏蔽線，屏蔽層應一端或兩端接地，接地電阻應小于屏蔽層電阻的1/10.
● 交流輸出線和直流輸出線不要用同一根電纜，輸出線應盡量遠離高壓線和動力線，避免并行。
（3）I/O端的接線
輸入接線
● 輸入接線一般不要太長。但如果環境干擾較小，電壓降不大時，輸入接線可適當長些。
● 輸入/輸出線不能用同一根電纜，輸入/輸出線要分開。
● 盡可能采用常開觸點形式連接到輸入端，使編制的梯形圖與繼電器原理圖*，便于閱讀。
輸出連接
● 輸出端接線分為獨立輸出和公共輸出。在不同組中，可采用不同類型和電壓等級的輸出電壓。但在同一組中的輸出只能用同一類型、同一電壓等級的電源。
◆ 企業名稱：廈門泰尼電氣有限公司
◆ 企業性質： 有限責任公司
◆ 主營業務：DCS,PLC
◆ 經營模式： 貿易
◆ 貿易地區： 全國
◆ ： 小廖女士）
◆ ：
◆
◆ :
◆ （備注“01008”收）
◆ ：
◆ 郵政編碼： 361026
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