PLC控制系統(tǒng)由于具有功能強、程序設計簡單、擴展性好、維護方便、可靠性高、能適應比較惡劣的工業(yè)環(huán)境的特點,因此在工業(yè)企業(yè)廣泛應用.但是由于工業(yè)環(huán)境條件惡劣,以及各種工業(yè)電磁,輻射干擾等,影響PLC控制系統(tǒng)的正常工作,因此必須重視PLC控制系統(tǒng)的抗干擾設計.為防止干擾,可以采用硬件和軟件相結合的抗干擾方法. 防止硬件干擾的方法有:1采用性能優(yōu)良的電源來抑制電網(wǎng)引入的干擾2電纜的選擇與鋪設來降低電磁干擾3完善接地系統(tǒng)4采用光電隔離來抑制輸入輸出電路引入的干擾等.而利用PLC軟件來減少干擾是PLC控制系統(tǒng)正常、穩(wěn)定工作的重要環(huán)節(jié).下面主要分析在生產(chǎn)實踐中應用的利用PLC組態(tài)軟件來減少干擾的方法:ABB 3HNE00311-1
這些品牌包括艾倫–布拉德利Allen-Bradley的控制產(chǎn)品和工程服務、道奇品牌Dodge的機械動力傳輸產(chǎn)品、瑞恩電氣Reliance Electric制造的電機和驅動產(chǎn)品以及羅克韋爾軟件Rockwell Software生產(chǎn)的工控軟件
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廈門岳航自動化設備有限公司
ABB 3HNE00311-1



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