A06B-6058-H011FUANC A06B-6058-H011FUANC
PLC是一種工業(yè)控制系統(tǒng),它的控制對(duì)象是工業(yè)生產(chǎn)設(shè)備或工業(yè)生產(chǎn)過(guò)程,工作環(huán)境是工業(yè)生產(chǎn)現(xiàn)場(chǎng)。它與工業(yè)生產(chǎn)過(guò)程的是通過(guò)I/O接口模塊來(lái)實(shí)現(xiàn)的。
通過(guò)I/O接口模塊可以檢測(cè)被控生產(chǎn)過(guò)程的各種參數(shù),并以這些現(xiàn)場(chǎng)數(shù)據(jù)作為控制信息對(duì)被控對(duì)象進(jìn)行控制。同時(shí)通過(guò)I/O接口模塊將控制器的處理結(jié)果送給被控設(shè)備或工業(yè)生產(chǎn)過(guò)程,從而驅(qū)動(dòng)各種執(zhí)行機(jī)構(gòu)來(lái)實(shí)現(xiàn)控制。PLC從現(xiàn)場(chǎng)收集的信息及輸出給外部設(shè)備的控制信號(hào)都需經(jīng)過(guò)一定距離,為了確保這些信息的正確無(wú)誤,PLC的I/O接口模塊都具有較好的抗*力。根據(jù)實(shí)際需要,一般情況下,PLC都有許多I/O接口模塊,包括開(kāi)關(guān)量輸入模塊、開(kāi)關(guān)量輸出模塊、模擬量輸入模塊、模擬量輸出模塊以及其它一些特殊模塊,使用時(shí)應(yīng)根據(jù)它們的特點(diǎn)進(jìn)行選擇。
武漢路易達(dá)自動(dòng)化設(shè)備有限公司
:李
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地址:武漢市東西湖區(qū)走馬嶺匯通公路港
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