1756-CNB 

（1） PLC控制系统的输入电路设计。PLC供电电源一般为AC85—240V，适应电源范围较宽，但为了抗干扰，应加装电源净化元件（如电源滤波器、1:1隔离变压器等）;隔离变压器也可以采用双隔离技术，即变压器的初、次级线圈屏蔽层与初级电气中性点接大地，次级线圈屏蔽层接PLC 输入电路的地，以减小高低频脉冲干扰。 

PLC输入电路电源一般应采用DC 24V, 同时其带负载时要注意容量，并作好防短路措施，这对系统供电安全和PLC安全至关重要，因为该电源的过载或短路都将影响PLC的运行，一般选用电源的容量为输入电路功率的两倍，PLC输入电路电源支路加装适宜的熔丝，防止短路。 

备货，备货，降降降，火火火，火火火……
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IDRA COGNEX Smart Light Red
Cognex Camera Insite 4000
Cognex DVT Ethernet To Serial Converter CON-ETS 161
COGNEX 800-5743-1 NSFP 80057431
COGNEX CKR-IOBOX-101 NSFP CKRIOBOX101
COGNEX LTC08F NSFP LTC08F
Cognex VM18B PC Board
Cognex In-Sight 2000 800-5714-1 Rev G Vision System
Cognex In-Sight 2000 Camera Controller, 800-5714-1
Cognex In-Sight 3000 Camera Controller, 800-5745-1
COGNEX VISION SYTEM IN-SIGHT-3400 CAMERA MODULE
Cognex Frame Grabber MVS 8500Le -PCI Express
COGNEX CVC-1000 USPP CVC1000
Cognex 800-5885-1 I/O Connection Module
COGNEX 800-5743-1 USPP 80057431
Cosmicar Pentax Cognex Lens 6mm 114-0049 F/1.2
COGNEX 800-5712-2A NSPP 80057122A
COGNEX LFC-16F1 NSFP LFC16F1
COGNEX LFC-25F1 NSFP LFC25F1
COGNEX LFC-35F1 NSFP LFC35F1
Cognex In-Sight 1701
COGNEX 800-5743-1C NEW BREAKOUT MODULE 80057431C
COGNEX IDRA-6 DVT SMART LIGHT MACHINE VISION
COGNEX VGA Monitor Board Assembly
Cognex In-Sight 1000 Break Out Breakout Box 800-5743-1
Cognex P/N 800-5637-1
TAMRON (COGNEX) LTC-05Z
Cognex In-Sight 800-5715-1 Digital CCD Camera USED
Cognex In-Sight Vision I/O Board, Lot of 4 800-5712-2 A
Cognex (MKS) Serial to DeviceNet Conv *LOT of 7, CDN366
COGNEX 800-5712-2A USPP 80057122A
COGNEX 300-0316-100 NSPP 3000316100
CON-IBOB Cognex DVT ISOLATION BREAK-OUT BOARD
CON-IBOB Cognex DVT ISOLATION BREAK-OUT BOARD
CKR-IOBOX-101 Cognex Checker 100 IO Box
CKR-IOBOX-101 Cognex Checker 100 IO Box
CKR-200-IOBOX Cognex Checker 200 IO Box
RVSI COGNEX VISION INTERFACE BOARD
COGNEX 800-5815-1 USPP 80058151
COGNEX 800-5637-1 USPP 80056371
DVT smart light Leds IDRA No cognex
COGNEX 800-5888-2 B NSFP 80058882B
COGNEX CKR-BKTADJE-101-00 NSFP CKRBKTADJE10100
COGNEX DVT Light Kit 500R-LGTKIT
COGNEX DVT SMARTIMAGE MULTIPLEXER WITH DVT SERIES 800
Cognex 014204-020 Machine Vision Overlay Card Imagraph
CDN366-2 & 300-0277-08 COGNEX DEVICENET CONVERTOR&CABLE
Cognex lens - Tamron - LTC-06F CCtv/vis sys 2/3" 6mm
COGNEX In-sight cable 300-0230-015
Cognex In-Sight 1450 I/O Expansion module 800-5758-1
COGNEX 800-0037-9 NSPP 80000379
Cognex 800-0037-2 Rev B
Cognex Checker 101 Vision Sensor 807-0007-2 REV B
COGNEX 119-0082 USPP 1190082
PVC-3 0401 20001361 A (Cognex?)
COGNEX 119-0081 USPP 1190081
COGNEX 300-0135-018 NSFP 3000135018
COGNEX CCB-84909-0207-50 NSPP CCB84909020750
COGNEX 300-0277-08 NSFP 300027708
COGNEX TURBO I/O LED BOARD REV1.0 USPP TURBOIOLEDBOARDR
Cognex Cable 300-0367 CDC50/100/200 cams to 8100D - 30'
Cognex 300-0107 Rev B Serial Port
Cognex 300-0277-08 Rev A In-Sight Serial Adapter
COGNEX IN-SIGHT 1000 BREAK OUT BOX INSIGHT BREAKOUT
COGNEX DM100-PWR-000 NSFP DM100PWR000
Cognex In-Sight 1000 Break Out Box vison
LNC-XKIT Cognex DVT
COGNEX 300-0318-30 NSPP 300031830
COGNEX CKR-LENSKIT-101-00 NSFP CKRLENSKIT10100
DVT COGNEX IDRA-6DT Series 600 Red LED Array w/Diffuser
COGNEX 800-5743 USPP 8005743