廈門市泰尼電器有限公司
主營產(chǎn)品: AB模塊PLC |
廈門市泰尼電器有限公司
主營產(chǎn)品: AB模塊PLC |
參考價(jià) | 面議 |
聯(lián)系方式:張工查看聯(lián)系方式
更新時(shí)間:2018-05-18 20:32:03瀏覽次數(shù):309
聯(lián)系我們時(shí)請(qǐng)說明是環(huán)保在線上看到的信息,謝謝!
1771-NIS===1771-NIS
===
CC—Link網(wǎng)絡(luò)控制系統(tǒng)的設(shè)計(jì)
1 網(wǎng)絡(luò)控制系統(tǒng)的構(gòu)成
圖2為爐窖網(wǎng)絡(luò)控制系統(tǒng)原理圖??刂葡到y(tǒng)設(shè)計(jì)4條生產(chǎn)線,圖2只給出爐窖網(wǎng)絡(luò)控制’系統(tǒng)中的1條生產(chǎn)線,其余3條從站的配置是相同的。為了提高整個(gè)控制系統(tǒng)的安全性以及可靠性,系統(tǒng)采用了雙機(jī)冗余措施。在雙主機(jī)系統(tǒng)中,二者處于對(duì)等地位,并且同時(shí)可以監(jiān)測對(duì)方的運(yùn)行情況以及網(wǎng)絡(luò)的沖突偵聽,并相互間傳遞心跳信息,一旦發(fā)現(xiàn)對(duì)方系統(tǒng)出現(xiàn)故障或者連接的網(wǎng)絡(luò)故障,監(jiān)測方立即接管測控任務(wù),從而保證了系統(tǒng)在任何時(shí)候系統(tǒng)主機(jī)的完整性和完好性,只要主機(jī)和網(wǎng)絡(luò)安全,控制系統(tǒng)便會(huì)安全,實(shí)時(shí)性便可得到保證。兩臺(tái)冗余主機(jī)的配置均采用Q系列CPU,CC—Link總線模塊QJ61BTll,QJ71E71—100以太網(wǎng)模塊,主機(jī)配置相同以保證二者的相近似,滿足系統(tǒng)相似性原理,對(duì)控制系統(tǒng)的安全性設(shè)計(jì)提供了保證。
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