PS416-AIN-400
PS416-AIN-400
PS416-AIN-400
（2）PLC系统中干扰的主要来源及途径
强电干扰
PLC系统的正常供电电源均由电网供电。由于电网覆盖范围广，它将受到所有空间电磁干扰而在线路上感应电压。尤其是电网内部的变化，刀开关操作浪涌、大型电力设备起停、交直流传动装置引起的谐波、电网短路暂态冲击等，都通过输电线路传到电源原边。
柜内干扰
控制柜内的高压电器，大的电感性负载，混乱的布线都容易对PLC造成一定程度的干扰。
来自信号线引入的干扰
与PLC控制系统连接的各类信号传输线，除了传输有效的各类信息之外，会有外部干扰信号侵入。此干扰主要有两种途径：一是通过变送器供电电源或共用信号仪表的供电电源串入的电网干扰，这往往被忽视；二是信号线受空间电磁辐射感应的干扰，即信号线上的外部感应干扰，这是很严重的。由信号引入干扰会引起I/O信号工作异常和测量精度大大降低，严重时将引起元器件损伤。
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ALLEN BRADLEY 700-RT00N100A1 SOLID STATE TIMER NEW
ALLEN BRADLEY 100-C23Z*10
ALLEN BRADLEY 100-A12ND3 CONTACTOR
Allen Bradley 100NX101KD Contactor AB New
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ALLEN BRADLEY 100-C09DJ01 NSPP 100C09DJ01
ALLEN BRADLEY 100-C09ZJ01 NSPP 100C09ZJ01
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ALLEN BRADLEY 100-C60N00 NSFP 100C60N00
100C09L10 NEW ALLEN BRADLEY 100 C09L10
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ALLEN BRADLEY SLC 100 PLC, CAT. 1745-LP101,USED
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Allen Bradley Starter 100-C09Z*10 100-C09Z10 4 POLE
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ALLEN BRADLEY 100-C23J10 USPP 100C23J10
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ALLEN BRADLEY 100-M09NZ243 NSPP 100M09NZ243
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Switch; Allen Bradley 1492-GHD100 10 amps; 125 VAC, 65
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ALLEN BRADLEY 100-C12Y01 NSPP 100C12Y01
ALLEN BRADLEY 100-M05N-Z243S NSFP 100M05NZ243S
ALLEN BRADLEY 100-M09NZ2431S USPP 100M09NZ2431S
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ALLEN BRADLEY 1492-CB-2-H-100 NSFP 1492CB2H100
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1492CB1DG100 NEW ALLEN BRADLEY 1492 CB1DG100
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Allen Bradley Contactor 100-A30N*3, Series B, #13669
ALLEN BRADLEY 100-C09D200 SER A CONTACTOR 110/120V
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100M09NKD31S NEW ALLEN BRADLEY 100 M09NKD31S
1492GS1G100H NEW ALLEN BRADLEY 1492 GS1G100 H
1492SP2D100 NEW ALLEN BRADLEY 1492 SP2D100 FREE SHIP
Allen-Bradley 100-NX165 100NX165 DP Contactor Ref
ALLEN BRADLEY 100-ETAZJ3 NSFP 100ETAZJ3
ALLEN BRADLEY 100-ETB3 NSFP 100ETB3
ALLEN BRADLEY 100-ETB30 NSFP 100ETB30
ALLEN BRADLEY 100-ETY30 NSFP 100ETY30
100C09K10 NEW ALLEN BRADLEY 100 C09K10
100C09UD10 NEW ALLEN BRADLEY 100 C09UD10
Allen Bradley 100-A18NKD3 AC Contactor
100C09A10 NEW ALLEN BRADLEY 100 C09A10 FREE SHIPPING
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ALLEN BRADLEY 100-C72N00 NSFP 100C72N00
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Allen Bradley 700-CF220 w/ 100-FSC280
Allen Bradley Contactor 100-A18NZ*3 24vdc Coil
ALLEN BRADLEY 100-C09ZJ200 USPP 100C09ZJ200
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ALLEN BRADLEY 100-M12ND31S IEC CONTACTOR NIB
Allen Bradley 1494R-N100 Disconnect Switch 3 Pole
Allen Bradley IEC Reversing Motor Starter 100-A12NZ*3
Allen Bradley Contactor 100-A12NZ3 w/ Overload
Allen-Bradley 100-A09NZ243 Ser B Contactor
ALLEN BRADLEY 100-C09ZJ10 STARTER CONTACTOR 24VDC
Allen Bradley Reversing Motor Starter 100-A12NZ*3 1amp
ALLEN BRADLEY 100-A60ND3 CONTACTOR 120 VAC COIL
Allen Bradley 100-C09D10
ALLEN BRADLEY 100-C30Z*00 MOTOR STARTER USED
Allen-Bradley 100-CO9DJ10 (NEW IN BOX)
ALLEN BRADLEY CONTACTOR 110V50/120V60Hz 100-C12D10
Allen Bradley 100 Series Reversing Motor Starter 24vdc
ALLEN BRADLEY 1492-CB2H100
ALLEN BRADLEY 820 OHMS 5% .250W 1/4W QTY: 100 NEW RARE
Allen Bradley 100-C09D10 Contactor Ser/A 32 Amp *New*
Allen Bradley SLC 100 expansion unit
Allen-Bradley Relay, Cat # 100-C23Z*200C / #100-S
Allen Bradley 100-B250N*3 Contactor GOOD CONTACTS AS IS
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Allen Bradley 100 C43 *00
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Allen Bradley 700-CF400 w/ 100-FSC280 (Quantity 2)
LOT of 3 Allen Bradley Contactors 100A12ND3 700F220A1
ALLEN-BRADLEY 100-A38N*3 Ser C Contactor
Allen Bradley 190-MN 190-P100 Ser A Contactor
