HONEYWELL DCS卡件CC-PAIH01 HART Analog Input Module 51405038-175
HONEYWELL DCS卡件CC-PAIH01 HART Analog Input Module 51405038-175
HONEYWELL DCS卡件CC-PAIH01 HART Analog Input Module 51405038-175
工業(yè)現(xiàn)場(chǎng)的環(huán)境比普通環(huán)境都要惡劣，至少在震動(dòng)，濕氣，溫度上都要比普通環(huán)境惡劣，工業(yè)以太網(wǎng)需要更多專業(yè)的知識(shí)和實(shí)踐經(jīng)驗(yàn)。如果你正在安裝或者使用一種工業(yè)以太網(wǎng)（工業(yè)以太網(wǎng)交換機(jī)），那么關(guān)于布線、信號(hào)質(zhì)量、接地回路、交換機(jī)和通訊這五點(diǎn)內(nèi)容必須要了解否則容易出現(xiàn)故障，更使維護(hù)成本上升。
1、布線問題
和所有網(wǎng)絡(luò)一樣，電纜的優(yōu)劣直接影響工業(yè)以太網(wǎng)的優(yōu)劣。而且除了高電磁干擾（EMI），工業(yè)環(huán)境中還經(jīng)常有某種等級(jí)的溫度、粉塵、濕度以及其他在家庭和辦公環(huán)境中不常見的影響因素。
所以，如何選擇電纜？在辦公室內(nèi)，商業(yè)等級(jí)的電纜，例如5類電纜，比較適合于10MB的網(wǎng)絡(luò)，而5e類電纜適合于100MB網(wǎng)絡(luò)。根據(jù)ANSI/TIA-1005標(biāo)準(zhǔn)所述，6類電纜或者更好的電纜可以用于工業(yè)環(huán)境中的主機(jī)或者設(shè)備連接。
6類電纜能夠在100米的范圍內(nèi)實(shí)現(xiàn)1GB網(wǎng)絡(luò)，55米范圍內(nèi)實(shí)現(xiàn)10GB網(wǎng)絡(luò)。6e類電纜可以在100米范圍內(nèi)實(shí)現(xiàn)10GB網(wǎng)絡(luò)。
相比于5類電纜和5e類電纜，6類電纜不易受串?dāng)_和外部EMI噪聲影響。工業(yè)以太網(wǎng)電纜的設(shè)計(jì)能夠抵御更加嚴(yán)酷的工業(yè)環(huán)境對(duì)電纜的物理侵蝕。在安裝6類電纜時(shí)，確保RJ45接口和插座也能夠達(dá)到6類等級(jí)。的使用方法是，短距離布線時(shí)，使用預(yù)先做好的接插電纜，并在工廠內(nèi)安裝連接器。長(zhǎng)距離布線時(shí)使用插座。
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