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(1)基本任務(wù)是:本質(zhì)(本征)安全、他險(xiǎn)區(qū)域易變進(jìn)程、難于對(duì)付的十分環(huán)境
(2)全數(shù)字化智能多功能替代模擬式單功能儀器外表操裝置
(3)用兩根線聯(lián)接換散的現(xiàn)場(chǎng)外表操控裝置PD與操控中心,替代每臺(tái)儀器兩模線
(4)在總線上PD與儀器外表、操控裝置都是相等的
(5)多變量多節(jié)點(diǎn)串行,數(shù)字通訊體系簡(jiǎn)代單變量單點(diǎn)并行模擬體系
(6)是互聯(lián)的雙向的、開的替代單向的、封閉的
(7)用散的擬操控站替代集中的控站
(8)由現(xiàn)場(chǎng)電腦操作,還可掛到上位機(jī),接同一總線的上一級(jí)計(jì)算機(jī)
(9)網(wǎng),再可與 internet
(10)改動(dòng)傳統(tǒng)的信號(hào)規(guī)范、通訊規(guī)范和體系規(guī)范入企業(yè)管理網(wǎng)
(11) Honeywell. Smar. Fisher-Rosemount. AB/Rockwell, Elsag-Bailey, Foxboro. Yamatake.
Yokogawa. Siemens.gec -Alsthom-, Schneldes.pro
Data.ABB等
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