為什么工控界更信任PLC，選擇PLC作為工控的核心部件呢，主要是由于PLC的以下五個(gè)特點(diǎn)：
1. 可靠性高，抗干擾能力強(qiáng)
無(wú)觸點(diǎn)控制：故障率少；
硬件措施：屏蔽、濾波、隔離；
軟件措施：故障檢測(cè)、信息保護(hù)和恢復(fù)、警戒時(shí) 鐘（死循環(huán)報(bào)警）、程序檢驗(yàn)
2. 使用靈活，通用性強(qiáng)
產(chǎn)品系列化，硬件結(jié)構(gòu)模塊式，可靈活選用；
軟接線邏輯使得PLC能簡(jiǎn)單輕松的實(shí)現(xiàn)各種不同的控制任務(wù)，且系統(tǒng)設(shè)計(jì)周期短。
3. 編程方便，易于掌握
采用與繼電器電路極為相似的梯形圖語(yǔ)言，直觀易懂， SFC 功能圖，使編程更簡(jiǎn)單方便。
4. 接口簡(jiǎn)單，維護(hù)方便
可直接與現(xiàn)場(chǎng)強(qiáng)電設(shè)備相連接，接口電路模塊化。
有完善的自診斷及監(jiān)視功能，便于查出故障原因，并迅速處理。
5. 功能完善，性價(jià)比高
除邏輯控制，定時(shí)計(jì)數(shù)，數(shù)字運(yùn)算外，配合特殊功能模塊還可以實(shí)現(xiàn)點(diǎn)位控制， PID 運(yùn)算，過(guò)程控制，數(shù)字控制等功能，還可與上位機(jī)通信，遠(yuǎn)程控制等
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CHESTERTON 4683 STATIONARY SEAL -5/45mm
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CHESTERTON 8K SUPER PARACHUTE V-RINGS 0 RING SET 0.375 X .375
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CMP TC-400A35 4" TRAY CABLE CONNECTOR FOR HAZARDOUS LOCATIONS
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COAST TO COAST A6 LM2749 LM27 TAPERED BEARING CONE-CUP *SET OF 5*
COATED " COUPLER CORROSION RESISTANT !!!
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COAX MK252C26VPN/4T2LXB SOLENOID VALVE 0-6 BAR
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COGNEX CKR-200-CBL-EXT, REV B, CHECKER 200 3G AND 4G I/O EXTENSION CABLE 5M
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COLONIAL C7285 UNION /2" THREADED PVC VITON !!!
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