SCHNEIDER 擴(kuò)展模塊 TWDDRA8RT

SCHNEIDER 擴(kuò)展模塊 TWDDRA8RT

我們的優(yōu)勢(shì)
 ① 擁有進(jìn)出口權(quán)
 ② 自貿(mào)區(qū)優(yōu)勢(shì)
 ③ 完善的配套資源
 ④ 與廠商長期合作 (歐.美.日)
我們的理想；進(jìn)取 ! 求實(shí) ！嚴(yán)謹(jǐn) ！團(tuán)結(jié)  ！
我們的服務(wù)：供應(yīng)大型DCS系統(tǒng)備件、進(jìn)口工業(yè)機(jī)器人備件、
大型伺服系統(tǒng)電機(jī)驅(qū)動(dòng)器、變頻器、電磁閥、氣缸、流量計(jì)、傳感器、安全柵、溫控器等產(chǎn)品。廣泛服務(wù)于電子。電力。ye金。化工。汽車制造、機(jī)床，包裝機(jī)械，機(jī)械設(shè)備等眾多領(lǐng)域。

福州佳盛和電子貿(mào)易有限公司
聯(lián)系人：張經(jīng)理
咨詢熱線：18750780683（wx同號(hào)）
QQ：1768625723

獨(dú)立型PLC的特點(diǎn)是：

  (1)可根據(jù)數(shù)控機(jī)床對(duì)控制功能的要求靈活選購或自行開發(fā)。

  (2)有自己的I/O接口電路，PLC與CNC裝置、PLC與機(jī)床側(cè)的連接都通過I/0接口電路連接。PLC本身采用模塊化結(jié)構(gòu)，裝在插板式籠箱內(nèi)，I/O點(diǎn)數(shù)可通過I/O模塊或插板的增減靈活配置。

  (3)可以擴(kuò)大CNC的控制功能，可以形成兩個(gè)以上的附加軸控制。

  (4)在性能/價(jià)格比上不如內(nèi)裝型PLC.

 在實(shí)際調(diào)試過程中,有時(shí)出現(xiàn)這樣的情況,yi個(gè)軟件系統(tǒng)從理論上推敲能完quan符合機(jī)械設(shè)備的工藝要求,而在運(yùn)行過程中無論如何也不能投入正常運(yùn)轉(zhuǎn),在系統(tǒng)調(diào)試過程中,除考慮軟件設(shè)計(jì)的方法外,還可以從以下幾個(gè)方面尋求解決的途徑。

 1掃描擊期和響應(yīng)時(shí)間

  用PC設(shè)計(jì)yi個(gè)控制系統(tǒng)時(shí),yi個(gè)zui重要的參數(shù)就是時(shí)間,PC執(zhí)行程序中的所有指令要用多少時(shí)間,(掃描時(shí)間)有yi個(gè)輸入信號(hào)經(jīng)過PC多長時(shí)間后才能有yi個(gè)輸出信號(hào)(響應(yīng)時(shí)間)掌握這些參數(shù),對(duì)設(shè)計(jì)和調(diào)試控制系統(tǒng)無疑非常重要。

  當(dāng)PC開始運(yùn)行之后,它串行地執(zhí)行存儲(chǔ)器中的程序。我們可以把掃描時(shí)間分為4個(gè)部分。共同部分,例如清除時(shí)間監(jiān)視器和jian查程序存儲(chǔ)器;數(shù)據(jù)輸入,輸出;執(zhí)行指令;執(zhí)行外圍設(shè)備指令。

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