| 1756-OV16E |
| 1756-OV16E |
. 系統(tǒng)主要功能
本系統(tǒng)可以計(jì)算和分路顯示瞬時(shí)流量和累積流量，其顯示范圍為：0.0000?2949.0000(l/m)
系統(tǒng)通過顯示器將CPU212中的各路瞬時(shí)流量和累積流量顯示出來，并可清零及設(shè)置K系數(shù)，其設(shè)置方法為：K=3.7854/K′，式中K′為流量計(jì)標(biāo)簽上的K系數(shù)，按四舍五入法則取K的小數(shù)點(diǎn)后4位數(shù)。
5. 結(jié)束語
本系統(tǒng)在工業(yè)生產(chǎn)中有廣泛的應(yīng)用前景?？梢杂?jì)算和顯示多路瞬時(shí)流量和累積流量，精確度高；使用可編程程序控制器使系統(tǒng)的性能價(jià)格比較高，同時(shí)由于使用了顯示器，系統(tǒng)用戶界面非常友好。分析了水電站PLC系統(tǒng)的工作環(huán)境及對系統(tǒng)運(yùn)行的影響并提出了相應(yīng)的措施。
關(guān)鍵詞： 水電站；PLC；可靠性
1引言
水電站的空間存在極強(qiáng)的電磁場，發(fā)電機(jī)的電壓高達(dá)數(shù)千伏，電流高達(dá)數(shù)百安甚至數(shù)千安，開關(guān)站的輸出電壓高達(dá)數(shù)十千伏或數(shù)百千伏，發(fā)電廠的空間具有極強(qiáng)的電磁干擾。這種極強(qiáng)的電磁干擾將對PLC系統(tǒng)的通信、CPU的正常運(yùn)行、PLC電源等造成影響。
PLC是水電站計(jì)算機(jī)監(jiān)控系統(tǒng)核心部件，并且自成系統(tǒng)，PLC系統(tǒng)的可靠性直接關(guān)系著整個(gè)計(jì)算機(jī)監(jiān)控系統(tǒng)的可靠性，采取措施提高水電站PLC系統(tǒng)的可靠性是十分必要的。
◆ 企業(yè)名稱：廈門泰尼電氣有限公司
◆ 企業(yè)性質(zhì)： 有限責(zé)任公司
◆ 主營業(yè)務(wù)：DCS,PLC
◆ 經(jīng)營模式： 貿(mào)易
◆ 貿(mào)易地區(qū)： 全國
◆ 聯(lián)系人： 小廖女士）
◆ 電話：0592-6539066
◆ 聯(lián)系手機(jī)：13400716209
◆ QQ:1490371370
◆ 傳真：0592-6890859 （備注“01008”收）
◆ E-mail： 1490371370@qq.com
◆ 郵政編碼： 361026
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