福建中立恒自动化设备有限公司
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。
以下链接皆有货
NORDIC 4834H30PPG 7.5HP 3 Phase Solid State Reversing Starter And Brake
NORDIC COMBINATION REDUCED VOLTAGE STARTER 7134VF1R1612 CLASS 10 200HP 460V 3PH
NORDIC COMBO REDUCED VOLTAGE 7134YF1R1612 OVERLOAD CLASS 10 420A 350HP 3PH 460V
NORDIC COMBO REDUCED VOLTAGE STARTER 7134UF1R1612 CLASS 10 191/220A 150HP 3PH 46
NORDIC COMBO REDUCED VOLTAGE STARTER 713SXF1R1612 400A 300HP 3PH 460V 60HZAR
Nordic Current Sensitive Relay 3313C12 7-28 Amp 1-6 Sec Tested
NORDIC SOFT START MOTOR CONTROLLER 1632800 40HP 230V 3PH
NORDIC SOFT START MOTOR CONTROLLER NO BASE 1332600 35A 230V 3PH 10HPRRANT
NORDIC SOFT START MOTOR CONTROLLER W/ BASE 1332600 35A 230V 3PH 10HPRRANT
Nordmann SEM-68000 Tool Monitor
Nordson 105646 Hot Melt Control Board, 288012E
NORDSON 105647A BOARD SERVICE KIT PN 288010B * *
NORDSON 105661A BOARD SERVICE KIT (NIB)
NORDSON 119928A MAIN CONTROL BOARD * * Large Quantity *
NORDSON 183837 POWER SUPPLY BOARD
Nordson 183838A Hot Melt Temperature Control Module, 222620A
NORDSON 274792 Blue Hose 5/16 X 6’ 240V
NORDSON 274794 240V 5/16 X 10’ 240V AUTO
Nordson 274794 Hot Melt Pants 10ft. | ~3m
NORDSON 274796D HOT MELT GLUE GUN HOSE 16' 240V
NORDSON 276-315 VALVE
Nordson 4' Hot Melt Adhesive Hose Model# 272637, Model 4 or 5 Plug
NORDSON 772052A Cordset
Nordson Asymtek 99-013073 Dispensing Spray Conformal Coating System, 142722
Nordson Board REPL 119928
NORDSON CORP. TC-150-13-Pt100 Heated Hose 222827
Nordson Extrusion Hand Gun NIB 1022365A
Nordson Hot Melt H201ZT 230V 150 Watt 809194A !
Nordson Hot Melt Thermostat 300-400 Deg 1030505A
Nordson MPS-610V CoolWave UV Curing System, 1067155, 610V, 380/480 VAC, 172361
Nordson Printed Circuit, Power Board 234427 Factory Refurb
Nordson Solid Blue A STD 01 A CA T 8505768A 240V 147 Watt Pneumatic Applicator
Nordson Temperature Control Module 102309D
Nordson Temperature Control Module 102309D LARGE QUANTITY
Nordson UMSCXX01-MXVIX Adhesive Applicator Head 1074218A
Norgen L30-200-A_T Integral Multi-Point Lubricator
NORGREN AIR FUSE P/N T60A8890
NORGREN AIR FUSE P/N T60A8890, ITEM A
Norgren B08-000M3M0 Pneumatic Filter-Regulator B08000M3M0
NORGREN BL64-401 BL64401
NORGREN Compressed Air Lubricator L08-200-MPCA F92
NORGREN DA/8080/M/80 AIR CYLINDER 80MM X 80MM
Norgren DM/92040/M/50 Cylinder DM92040M50
NORGREN DUAL SHAFT OUTPUT CLAMP CYLINDER MSC51A53A90ADS21000
NORGREN E1024H-CY / E1024HCY
NORGREN E1024H-CY / E1024HCY E78
Norgren K41 Nugget 150 K41DA00KS1K35 3/2-Way Pneumatic Directional Valve E78
Norgren K41 Nugget 150 K41DA00KS1K35 3/2-Way Pneumatic Directional Valve
NORGREN K81DA05K33K33 / K81DA05K33K33 E78
NORGREN LINTRA RODLESS CYLINDER C/46025/M/14 S/N 190345.1, FR ESI QSM PCB DRILL
Norgren M/50250/10 Clamping Double Acting Cylinder NFP Sealed
NORGREN M/6025/100 ROUNDLINE DOUBLE ACTING CYLINDER ,25MM DIAMETER 100MM
Norgren Martonair Pneumatic Cylinder M/6025/75 NOS
NORGREN PDA/182040/M/50 CYLINDER
NORGREN PDA/182063/M/25 / PDA182063M25
NORGREN PRA/8063/M/25 / PRA8063M25
NORGREN PTH-200-A1AA STACKED REGULATOR AND FILTER 0-160 Psi Gauge 1/4” NPT
NORGREN QM/1704/00 / QM170400 ( )
Norgren QM/34/5 Reed Switch Old Stock
NORGREN QM/50220C/00 Rebuild Kit Date 2023
NORGREN QM/960/00 Repair Kit
Norgren RM/9175/75 Cylinder
Norgren RM/92040/M/25 Compact Pneumatic Cylinder air ram actuator, Sealed
Norgren Ross Flow Control Valve SPUS/F3230C-CC1V2
NORGREN S/666/7 Sealed
Norgren solenoid valve 24V coil base blocks MH01GDA74AMLX
NORGREN SPUS/K41EA00KS1K32 / SPUSK41EA00KS1K32 Old Stock
NORGREN V095426R-B213A Electromagnetic Valve
NORGREN VALVE P/N 06964-000 MAX 145PSI, 04868-501 C,
NORGREN VALVE P/N 06964-000, TOOL HOLDER 04868-500 C,
NORGREN VALVE P/N 06964-000, TOOL HOLDER 04868-501 C,
Noritake itron Display Module | GU256X128-300
Nortel Compact PCI NT4N39BAE5 01 CP PIV w/ 512MB RAM 90 Day
NORTEL NETWORKS NTN438FA / SOCPT6TAAA 2XGigE 2.5G RPR
Nortel Networks S Module NNTM01243A4M 850NM OTR 2.5GB/ WMT88M0BAA 90DAY WARR
NORTEL NETWORKS SWITCH CHASSIS PORT SWITCH BOARDS 8010, 100-240V,
Nortel NTQA52CA-01 S8000 S12000 1900MHZ TX Filter Module
NORTH AMERICAN GAS COMBUSTION BURNER 4423-1 90DAY
NORTH AMERICAN SIGNAL ST500-ACG GREEN
Northern Pneumatic Valve A1026B-CK 24V DC
Northern Technologies SII-2B Transient Surge Supressor
NORTHMAN PRESSURE SWITCH MODEL PS-35, 250VAC 30VDC 5A
Northman SWH-G03-C6-R120-10 Solenoid Operated Directional Valve
Northman SWH-G03-C6-R120-10-M-N Solenoid Operated Directional Valve 120V 50/60Hz
NORTHMAN VALVE MODEL SWH-G02-B2-A24-20
NORTHMAN VALVE MODEL SWH-G02-D2-A24-20
NORTHSTAR Encoder Tester RIMM100MS 18 D RIMM100MS18D
NORTHSTAR NT11-E VEHICLE DETECTOR HIM
NORTIFIER BOARD TRANSFORMER POWER SUPPLY/BATTERY CHARGER MPS-24APCC 5.7VDC 90DAY
Norton 32A46-IVBE 1800RPM 14" x 1-1/2" x 5 Grinding Wheel
NORTON ALUNDUM GRINDING WHEEL 14 X 1 X 5 66253302095 32A90-L6VBE .2320RPM 1
Norton Charger Diamond Core Bit 70184683302
Norton Diamon Cup Wheel SD220-R75B99E-1/8 11A2 3-1/2x1-5/16x.4405 NIb
NORTON GRINDING WHEELS BOX OF 6 5SG220-LVS 15'X.500'X5' 66243451740 2165 RMP
NOS DISCONNECT SWITCH WHF361 30A 600V 3P 3PH SS FUSIBLEWARR
NOS FDPT FDPT3611R 30 AMP 600V F PANEL PANELBOARD SWITCH 1 Yea
NOS HMC3800F 80A 3 Pole HMC Frame Breaker
NOS Walker Wiremold 897CTCBK Poke-Thru Floor Wiring Housing Assembly
NOS 39590Z-UNION SPECIAL-BALL BEARING HOUSING **
NOS 7012PEX 20-200 Sec 120VDC Time Delay Relay
NOS ABB A210-30 350A 600V 3PH 200HP Contactor
NOS ABB UW3100 Gas Flame Detector
NOS Abex Denison R4U-06-513-10-A1 016 85323 Hydraulic Unloading Valvea
NOS Advanced Protection Technologies TE/4XGA/24/DC Surge Protector