1756-PB72
1756-PB72
隨著PLC技術(shù)的發(fā)展,其數(shù)據(jù)存儲區(qū)越來越大。如德維森公司的PLC,其數(shù)據(jù)存儲區(qū)(DM區(qū))可達(dá)到9999個字。這樣龐大的數(shù)據(jù)存儲區(qū),可以存儲大量數(shù)據(jù)。
數(shù)據(jù)采集可以用計數(shù)器,累計記錄采集到的脈沖數(shù),并定時地轉(zhuǎn)存到DM區(qū)中去。
數(shù)據(jù)采集也可用A/D單元,當(dāng)模擬量轉(zhuǎn)換成數(shù)字量后,再定時地轉(zhuǎn)存到DM區(qū)中去。
PLC還可配置上小型打印機(jī),定期把DM區(qū)的數(shù)據(jù)打出來。
PLC也可與計算機(jī)通訊,由計算機(jī)把DM區(qū)的數(shù)據(jù)讀出,并由計算機(jī)再對這些數(shù)據(jù)作處理。這時,PLC即成為計算機(jī)的數(shù)據(jù)終端。
電力用戶曾使用PLC,用以實時記錄用戶用電情況,以實現(xiàn)不同用電時間、不同計價的收費辦法,鼓勵用戶在用電低谷時多用電,達(dá)到合理用電與節(jié)約用電的目的。
◆ 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
◆ : 小廖女士)
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◆ (備注“01008”收)
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◆ 郵政編碼: 361026
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