NXD63B120++NXD63B120

NXD63B120++NXD63B120

從PLC外部考慮： 
使用隔離的PC/PPI電纜，盡量不用廉價(jià)的非隔離電纜（特別是在工業(yè)現(xiàn)場）。西門子公司早期出產(chǎn)的PC/PPI電纜（6ES7 901-3BF00-0XA0）是不隔離的，現(xiàn)在也改成隔離的電纜了！ 
PLC的RS485口聯(lián)網(wǎng)時(shí)采用隔離的總線連接器，如PFB-G，速率為0～1.5Mbps自動(dòng)適應(yīng)，外形和使用方法與西門子非隔離的總線連接相同。 

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公司  名稱：廈門泰尼電氣有限公司
固定  電話：0592-6809819
聯(lián)  系  人：張亮
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公司地址：廈門市海滄區(qū)海滄街道濱湖一里7號(hào)2008室
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與PLC聯(lián)網(wǎng)的第三方設(shè)備，如變頻器、觸摸屏等的RS485口均使用RS485隔離器BH-485G進(jìn)行隔離，這樣各RS485節(jié)點(diǎn)之間就無“電”的聯(lián)系，也無地線環(huán)流產(chǎn)生，即使某個(gè)節(jié)點(diǎn)損壞也不會(huì)連帶其它節(jié)點(diǎn)損壞。 
RS485通信線采用PROFIBUS總線專用屏蔽電纜，保證屏蔽層接到每臺(tái)設(shè)備的外殼并最后接大地。對(duì)于有架空線的系統(tǒng)，總線上最好設(shè)置專門的防雷擊設(shè)施。

LS3AK HONEYWELL MICROSWITCH HEAVY DUTY LIMIT SWITCH

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WATTS MIST LUBRICATOR. MODEL C528 02BLAHCA

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CR353FE3BA1 GE MOTOR STARTER

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EE-SPW311 OMRON PHOTO MICROSENSOR NEW IN BOX

1777-CA ALLEN BRADLEY I/O INTERCONNECT CABLE 3 FT. NEW

ALLEN BRADLEY 1770XYC LITHIUM BATTERY NEW 1 AVAILABLE

WATTS MIST LUBRICATOR. MODEL C528 02BLAHCA

B521BB549C PARKER PNEUMATIC VALVE NEW

925773 20C VF PARKER HYDRAULIC FILTER ELEMENT NEW

925773 20C NG PARKER HYDRUALIC FILTER ELEMENT NEW

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FUJI SG33B Earth Leakage Breaker

770-1 WHITE-RODGERS AIR SWITCH NEW IN BOX

MAC VALVE 45A-NAC-DAAJ-1KA , 120V COIL, NEW

871C-D1NP8-D4 ALLEN BRADLEY PROXIMITY SWITCH NEW

42SMF-7101 ALLEN BRADLEY PHOTOSWITCH FIBER OPTIC NEW

CR304ABG11AB GE EXTENDED BUTTON NEW IN BOX

CR104PXG22 GE RED PUSHBUTTON

025-25927-000 YORK TRANSDUCER NEW

M/50/EAP/2V NORGREN MAGNETIC REED SWITCH NEW

BZE6-2RN80 HONEYWELL MICRO ROLLER LIMIT SWITCH NEW

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P9XPNNGN10N0 GE ROUND PLASTIC OPER BLACK NEW

700-PB40 ALLEN BRADLEY SECOND DECK CONTACT RELAY NEW