NZM-0002-A双线信号模块

NZM-0002-A双线信号模块

NZM-0002-A双线信号模块

NZM-0002-A双线信号模块

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

Econco Rebuild 7237 Linear Amplifier Tube

Econoline BG07 Tool Balancer 5-10Lb.Range 8ft.Travel Distance

Econ-O-Mite D745 1/2"x50' 200psi Spring Retratable Air Hose Reel USA

Edison JDL30 JDL 30 HRCI-J Type D Class J 30 Amp Time Delay Fuse 600V

Edwards 340-4N5 Adaptabel 120V Vibrating Bell 4" Dia

Edwards 50B-N5-40WH Adaptabeacon Blue Signal Flash Beacon Flashing Light 120V

EG &G Rotron EN454W72L 038176 Industrial Regenerative Blower Assy

EG&G Sealol 26456 Mechanical Rotary Seal

EG&G Sealol 3922 Replacement Mechanical Seal

EG&G Sealol 9517 Mechanical Seal Assembly

EG&G Sealol RAD 6840 Mechanical Seal Pump Repair Part

EG&G SEALOL RSD 3913 Mechanical Seal  In Box

EG&G Sealol RSD-76003 L25x37x10 Cartridge Type Labyrinth Seal

EG&G TWA-C-4 Transmitter 1470-2099 Hz Range 4-20mA

EIC AAC-1408-4XT Thermoelectric Air Conditioner Cooling System 400BTU A/C

EIL Instruments/YEW 0-20 AC Amp Meter Large Face model

ELA NX H0806 Remote Light Fixture Head Sealed Gasketed Mounting Plate 6V PAR36

Eldorado BERTC 0241 .1968x11"OAL 2 Flute Carbide Tipped Coolant Fed Gun Drill Bi

Eldorado Tool 0022924003 .4375X10" OAL 1 Flute Carbide Tip Coolant Fed Gun Drill

Eldorado Tool RD2333 .3750X16.00 OAL 1 Flute Coolant Fed Carbide Tip Gun Drill

Electric Enclosure/Box Panel W/Back Plate 24" x 24" x 9" Wall Mount Hinged Door

Electric Immersion Heater Multi-Element 3000 Watt 120V Over the Side PTFE

Electrical enclosure steel wall mount cut out box 17-3/4"x9-3/4"x5-3/4"

Electro Mechano 105W Precision High Speed Small Drill Press Jacobs No 0 Chuck

Electro-Matic CALV1-2084/12 P/N 022375 Magnetic Chuck Control 208/460 Volt 12VDC

Electro-Matic Type 12325C02 Model ECY15E Electro Magnet Control Box

Elektro-Physik Koln FN 252 Minitest Probe Meter

Elesa Clayton DD52-AN-0005.0 5-Digit Position Indicator Counter 3/4"Direct Drive

Elkhart Products 200W Ball Valve 1/2" "Shark Bite" Style Inline Push Fitting

ELM2 Emergency Back-up LED Light Fixture Unit 120/277V 90min

Elox Inc 319669 Control Board

EMB Papst Aluminum 7-7/8" Dia Axial Fan 230V 50/60Hz 64/80W Thermally Protected

Emerson TPL-61-6001-11 Shunt Industries Fuse Panel Assembly 600 Amp 145 Volt DC

Emhart Warren Tucker B108 E100 628 CPU Board

Empro A 600 50 Shunt 600 Amp 50MV

EMX D-Tek Vehicle Loop detector w/11 pin male plug-in

Enamelled Heavy Magnet Wire 0.766mm Dia 60Lb Roll 18 AWG Copper Coil Winding

ENDO EHW-120 Air Hoist 6.6 Feet (1.9 Meters) Lift 264 LBS (120KG) Capacity

Endress + Hauser DMC-50589 Flow Meter Digital Display Panel

Enermax EG365P-VE PC Computer Power Supply Dual Fan

Enerpac 20 or 25 Ton Cylinder With 5" Stroke Approx. 2.58" Bore No Tag Works

Enerpac A-242 Coupling For 25 Ton RC Cylinders

Enerpac E10 1Q07 6' Genuine OEM 10000psi Hydraulic Jack Hose W/Fittings

Enerpac Grooved Saddle For RW 5 Ton Cylinder A53-G

Enerpac IC 300 Control Station Pendant 3-way 115VAC VS-3 VSR-3

Enerpac RC57 5ton Hydraulic Rum Cylinder 10-7/8"long Great Condition

Enerpac RCH-120 Hydraulic hollow 12 ton 5/16 stroke hydraulic cylinder

Enerpac-C-102 10 Ton Cylinder No Quick Coupler

ENI HPG-2GE-11621 High Voltage RF Frequency Power Generator 200 Watt For Repair

Enidine OEM 1.25X2 Decelerator Hydraulic Shock Absorber

Enidine YI-2B14-354 Double Convoluted Air Springs Airide Airstroke

Entrelec M4/6 5116 Gray Terminal Block 4mm 2-Pole DIN Rail Mount Lot of 8pcs

Entrelec VY20 Rotary cam disconnect switch 600VAC 20A 3PH 3 Stages

EPE 2.140P10 Replacement Filter Element

ER25 Spring Collet Various Sizes Lot of 10

ER32 20mm Single Angle Spring Collet Lot of 12

ER32 Single Angle Spring Collet Assorted Lot of 14

ER40 Spring Collet Metric 26mm

Erickson 100DA0344 0.34375" 11/32" Double Angle Collet

Erickson 100DA0438 0.4375" 7/16" Double Angle Collet

Erickson 100TG0750 0.750" Bonded 100 TG Series Single Angle Collet 3/4"

Erickson 180DA0344 11/32" 8.73MM Double Angle Collet

Erickson 180DA0422 0.421875" 27/64" Double Angle Collet

Erickson 50TG0433 0.433" 11MM Single Angle Collet

ERico Cadweld L-160 Clamp Handle Great Condition

Erico/Caddy 4H58 812M Conduit Hangers 1/2-3/4" Attached Beam Clamp Lot 28

ESAB Sureweld SW-15 811001106 Welding Electrode E6013 3/32"x12" 25lb Box

ESAB Wear Arc 6-IP 259031805 1/8"x14" Hard facing Electrode 10lb Cans

ESN-16-10-P Round Air Cylinder 16mm Bore 10mm Stroke Single Action Pneumatic

EUIN-21228X 1250Watt 240V Heating Element 7/16"Dia 28"L Tubular Immersion Heater

Eupec 52915-027-50 Forklift Power Block Module

Eupec TD 106 N KOF 25H3 Powerblock Module

EuroPlacer E101359B LED Light Bracket Lot of 2

Eutectic Castolin 19985 Ni-Cr-Fe Alloy Welding Powder 3.3Lb. Sealed Container

Evans 0650 Pocket Hole Machine Slide Assembly Replacement Part

EW-3/4 Thrust Bearing NIB

Ex-Cello-O DP-42-H-163P.025 6A Carbide Insert Grade 6A Box of 4pcs

Excelon 2992-20 Filter

Eye Bolt Shoulder Steel Zinc Plated Standard Lifting M12X1.75mm Lot of 10

Eyebolt Lifting W/Shoulder Zinc Plated Steel M30X3.5mm 45mm Shank Lot of 3

Eyebolt Shoulder Lifting Zinc Plated M20X2.5mm 30mm Shank  Lot of 6

EZGO Golf Cart 70724G01 1994-2001.5 TXT Medalist Steering Rack Repair Kit

F74G-4AN-QD1 Pneumatic Filter w/Drain 250 PSI 1/2" NPT

Fabco-Air MSV-1 OY154 Micro Limit One-shot Pulse Valve Push Button Switch

Fabric Conveyor Belt 10' X 12-1/8" 0.200" Thick W/ lacing on end

Fafnir 00591442 SAK 1 3/4 Pillow Block Bearing

Fafnir 2MM209WI DUL Super Precision Bearing Set of 2

Fafnir 7201K C5 SU 7201K Angular Contact Ball Bearing