1769-L32E
廈門卡庫電氣有限公司
聯(lián)系人:廖工
手機:18030229052
Q Q:1093230189
聯(lián)系電話:0592-5709823
傳真:0592-5709828
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1769-L32E
PLC在數(shù)控機床中的應用 1、 PLC在數(shù)控機床中的應用形式 PLC在數(shù)控機床中應用,通常有兩種形式:一種稱為內(nèi)裝式;一種稱為獨立式。 內(nèi)裝式PLC也稱集成式PLC,采用這種方式的數(shù)控系統(tǒng),在設(shè)計之初就將NC和PLC結(jié)合起來考慮,NC和PLC之間的信號傳遞是在內(nèi)部總線的基礎(chǔ)上進行的,因而有較高的較高交換速度和較寬的信息通道。它們可以共用一個CPU也可以是單獨的CPU這種結(jié)構(gòu)從軟硬件整體上考慮, PLC 和NC 之間沒有多余的導線連接, 增加了系統(tǒng)的可靠性, 而且NC 和PLC 之間易實現(xiàn)許多功能。PLC 中的信息也能通過CNC 的顯示器顯示, 這種方式對于系統(tǒng)的使用具有較大的優(yōu)勢。高檔次的數(shù)控系統(tǒng)一般都采用這種形式的PLC。 獨立式PLC也稱外裝式PLC,它獨立于NC裝置,具有獨立完成控制功能的PLC。在采用這種應用方式式,可根據(jù)用戶自己的的特點,選用不同專業(yè)PLC廠商的產(chǎn)品,并且可以更為方便的對控制規(guī)模進行調(diào)整。 2、PLC與數(shù)控系統(tǒng)及數(shù)控機床間的信息交換 相對于PLC,機床和NC就是外部。PLC與機床以及NC之間的信息交換,對于PLC的功能發(fā)揮,是非常重要的。PLC與外部的信息交換,通常有四個部分: (1)、機床側(cè)至PLC:機床側(cè)的開關(guān)量信號通過I/O單元接口輸入到PLC中,除極少數(shù)信號外,絕大多數(shù)信號的含義及所配置的輸入地址,均可由PLC程序編制者或者是程序使用者自行定義。數(shù)控機床生產(chǎn)廠家可以方便的根據(jù)機床的功能和配置,對PLC程序和地址分配進行修改。 (2)、PLC至機床:PLC的控制信號通過PLC的輸出接口送到機床側(cè),所有輸出信號的含義和輸出地址也是由PLC程序編制者或者是使用者自行定義。
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【商家簡介】廈門卡庫電氣有限公司是自動化產(chǎn)品及自動化設(shè)備銷售的企業(yè),對各大自動化產(chǎn)品品牌有著強大的優(yōu)勢,并且對優(yōu)勢產(chǎn)品有著大量的備貨。與歐洲及世界從事電氣的各大品牌公司有著良好的協(xié)作關(guān)系。歡迎來電咨詢! DCS 數(shù)控系統(tǒng) 傳感器 高壓柜 變電站 變壓器 敏感元器件 PLC 伺服定位系統(tǒng)一站式服務(wù) 主營產(chǎn)品:Fanuc,Foxboro,Ovatin,Allen-Bradley,Siemens等各類工控產(chǎn)品,歡迎來電咨詢!...
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