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廈門鈦尼電氣有限公司
主營產(chǎn)品: 電工電氣,工控設(shè)備,PLC |

![]() |
廈門鈦尼電氣有限公司
主營產(chǎn)品: 電工電氣,工控設(shè)備,PLC |
暫無信息 |
參考價 | 面議 |
1756-A13
1756-A13
用PLC進(jìn)行開關(guān)量控制實例是很多的,冶金、機(jī)械、輕工、化工、紡織等等,幾乎所有工業(yè)行業(yè)都需要用到它。目前,PLC首用的目標(biāo),也是別的控制器無法與其比擬的,就是它能方便并可靠地用于開關(guān)量的控制。
3.2用于模擬量控制
模擬量,如電流、電壓、溫度、壓力等等,它的大小是連續(xù)變化的。工業(yè)生產(chǎn),特別是連續(xù)型生產(chǎn)過程,常要對這些物理量進(jìn)行控制。
作為一種工業(yè)控制電子裝置,PLC若不能對這些量進(jìn)行控制,那是一大不足。為此,各PLC廠家都在這方面進(jìn)行大量的開發(fā)。目前,不僅大型、中型機(jī)可以進(jìn)行模擬量控制,就是小型機(jī),也能進(jìn)行這樣的控制。
PLC進(jìn)行模擬量控制,要配置有模擬量與數(shù)字量相互轉(zhuǎn)換的A/D、D/A單元。它也是I/O單元,不過是特殊的I/O單元。
A/D單元是把外電路的模擬量,轉(zhuǎn)換成數(shù)字量,然后送入PLC。D/A單元,是把PLC的數(shù)字量轉(zhuǎn)換成模擬量,再送給外電路。
◆ 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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