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
Bulldog VS3704LMR 600Amp Vacu-Break Safety Switch
BUMÜLLER 60-VC-0A-0001 | AC Converter Power Part
Burkert 2” Solenoid Valve 00001371 2000-B-50,0-PTFE-RG NIB
Burkert 251-B-40-B-Rg2 1.5” 1 1/2” Pneumatic Valve 3-10 BAR
Bürkert 311-c-02,5-b-ms 043139T 1/8” 24V Solenoid Valve
Bürkert 411 -C -06,0 -B -PA G 1/4 -F-000 24V 2W PN 1-10 bar 041428T
Bürkert 8640 valve island Profibus DP for pneumatics + 20 valves
Bürkert 8640 valve island Profibus DP for pneumatics + 24 valves
Bürkert 8711 00.0 // 00231179
Bürkert 8711 50.0 // 00231182
Bürkert 8711 80.0 // 00251367
Bürkert Burkert 8626 MFC Gas Mass Flow Regulator Mass Flow Controller
Burkert Valve Actuator Rebuild Kit, DN 50 PTFE, SET6-2000, 00011390 Surplus
Burkett Steam Solenoid Valve 6213 A 3/4” NBR BR 240V Cool Old Stock
BURLING MODEL F-1C TEMPERATURE CONTROLLER 0-1400 Deg F
Burling Temperature Control H-1S-FMJ 8.5” Set @ 700 Deg F
Burndy Compression Lug Box Of 10 YA36 510115
Burndy Compression Lug Box Of 7 YA36 510115
BURNDY GAR3906TC 6” Ground Connector For Large Pipe Lrg QTY
Burndy Q2A34-2N Copper 2-Hole 2 Terminal Lug 400MCM - 500MCM
Burndy Weld Cable Terminal 4 hole WA444A43N 954-1100 KCMIL
Burndy YA6C2N 6 AWG 1/2" Stud 2 Hole Long Barrel Compression Terminal
Burndy YA6C2N 6 AWG 1/2" Stud 2 Hole Long Barrel Compression Terminal - 50pcs
Burndy YA6C2N 6 AWG 1/2" Stud 2 Hole Long Barrel Compression Terminal Lot Of 19
Burr Brown AA155-2 -4 Rev C Mainboard Un E74
Burster 9221-IP65 Sensor-Profibus-Module
Burster 9306-V5102-DUO Joining Monitoring DigiForce 9306
Burster Power Sensor | 8432-5500-N0B0S000
Burster Train Pressure Force Sensor Type 8523-200
BUS DUCT FUSIBLE SWITCH ITAP-365 400A 600VAC 3P 3-WIRE
BUS PLUG BP-EA 100A 2/3P 3PH 4W ENCLOSURE 373D128G01 W/20A BREAKER
BUS PLUG BP-EA 100A 2/3P 3PH 4W ENCLOSURE 373D128G01 W/30A BREAKER
BUS PLUG BP-EA 100A 2/3P 3PH 4W ENCLOSURE 373D128G01 W/50A BREAKER
BUS PLUG TAP361 30A 600VAC 3PH/3W FUSIBLE
Busch & Spreen E198312ML Board
Busch BA 0100 A Cobra Mechanical Vacuum Pump, BA 100, 453519
Busch BA 0100 A Mechanical Vacuum Pump, Cobra 416299
Busch RB 0006 E ILO | Rotary Vane Vacuum Pump + KATT FFN 71-2 | RB0006EILO
Buschjost 8212300.8010 16VA 110V Valve
BUSPLUG FAN-362 60A 277/480V 3PH 4W 15-30HP FUSIBLE
BUSS 1BS101 FUSE HOLDER 100A 6 PCS Take Out
BUSSMAN FUSETRON FRS-R-150 DUAL ELEMENT TIME DELAY FUSE STOCK BOX OF 5
Bussman Hi-Cap KRP 1200 Amp 480V NOS
BUSSMANN FAST FUSE 170M8611 1100A 1000V 3BKN/75 AR UR
Bussmann FNQ-R-8/10 Class CC 8/10 Amp Fuses 600 Volt Tron NIB
Bussmann FRS R 50 50 Amp Indicating Fuses Class RK5 600 Volt NIB Box Of 10
Bussmann Fuse, Fusetron, FRS-R-125, 125 AMP, 600 VAC, Time Delay
BUSSMANN FWX-2000AH 250 VAC 2000A SEMICONDUCTOR FUSE
Bussmann KRP C 4000 Amp Fuse KRP-C-4000 KRPC-4000 Class L 600 Volt NIB
BUSSMANN KRPC 2000 FUSE KRP-C 2000 600 VOLT 2000 AMP HI-CAP
Bussmann KTK-40 KTK040 Midget Fuse, Fast Acting,KTK, 40A,600V. Box of 10
BUSSMANN KTS-450 NSFB - FUSE 450 AMPS 600VAC VOLTS
Bussmann KTS-R-80, 80 Amp 600V Cartridge Fuse
BUSSMANN LIMITRON FAST-ACTING FUSE KTN-R-600 600A 250V
Bussmann Limitron KLU-1000 1000 Amp 600 Volt Class L Fuse
BUSSMANN LIMITRON KTU 2000 CURRENT LIMITING FUSE 600V 200,000A KTU2000
BUSSMANN LIMITRON TIME DELAY FUSE KLU-2500 2500A 600V
BUSSMANN LOW-PEAK TIME-DELAY FUSE KRP-C-2000SP 2000A 600V
BUSSMANN LOW-PEAK TIME-DELAY FUSE LPN-RK-600SP 600A 250VAC/250VDC
Bussmann LPJ-600SP Look 600 Amp Fuse Class J 600 Volt NIB
Bussmann Lpn-Rk-500Sp Fuse, Time Delay, 500A, Lpn-Rk-Sp Series, 250V Ac, 250V
Bussmann LPS-RK 175SP 175 Amp Fuse Low Peak Class RK1 600V NIB
BUSSMANN LPS-RK-100SP - LOW-PEAK DUAL ELEMENT Lot Of 2
Bussmann LPS-RK-200SP 200 Amp Fuse Low-Peak Class RK1
Bussmann Lps-Rk-500Sp Fuse, Time Delay, 500A, Lps-Rk-Sp Series, 600V Ac, 300V
Bussmann LPS-RK-80SP 80Amp (80A) LPS-RK 600V Time-Delay LOT OF 3
Bussmann R60100-3CR Fuseholder
BUSSMANN RES-300 SUPER LAG FUSE RES300
Bussmann RM60200-3CR fuse holder + cover CVR-RH-60200
BUSSMANN SEMI-COND. FUSE FWJ-1600A 1600A 1000VAC/VDC
BUSWAY FAN-321 30A 240V 3PH 4W FUSIBLE BUS PLUG COSMETIC DAMAGE
BUSWAY ITAP-361 30A 600V 3PH 3W FUSIBLE
Butler Automatic D041550-501 Termination Board Sealed Package
BZV6-2RN2 Honeywell Micro Limit Switch E52
C & C Industries 1/2” M/F Needle Valve NV050-10M-SS-MXF 10,000 PSI
C 2226 K/C3 - SKF - CARB BRGS - FACTORY ! S89
C200H-ID215 One year warranty C200H-ID215 Fast Delivery E67
C3 Controls 22POTO10K-TBW-40 / 22POTO10KTBW40
CA3200 - Westinghouse 200 Amp Breaker 240V Tested
CA3225W 56B2D19G29 225A 240VAC 3 Pole Circuit Breaker
CADWELD VTC2C #115 W/M Grounding Mold Cable To Vert
CAL COIL TRANSFORMER 7871 3KVA PRIMARY-480V SECONDARY-120V
Cal Controls 99211F Digital Autotune Temperature Controller 250v-ac Refurb
Cal Controls Power Socket 903.51A #9900 NOS A31
Calbrite 3/4” 316SS Liquid Tight Conduit Fitting S60700FCS0 Lot Of 3
CALBRITE Grounding Hub, 3/4in., 1-5/8in.L, 316 SS S60700LTV2 Lot Of 2
CALBRITE S60700TB00 Conduit Outlet Body,SS,Trd Sz 3/4in TB
Calbrite S61500sp00 Conduit Clamp,Stainless Steel,3.4 In. L Lot Of 8
CALGON TESTER CAT. NO. 3725014 SODIUM ANALYZER
CALGON TESTER CAT. NO. 3725014 SODIUM ANALYZER, ITEM A
CALLANT TECHNOLOGY M42005L240YY161 DC SERVO MOTOR
Caloritech™ PXFT200 Electric Control Panel and Pump House Heater 200 Watt
CAM & 3 PCS PROXIMITY SENSORS PULSOTRONIC 9962-5600,
CAMBRIDGE SEM CIRCUIT BOARD VACUUM CONTROL UNIT CONTROL PCB 852160.2.B.4/4
CAMBRIDGE STEREOSCAN SEM CIRCUIT BOARD 852159.2.B.7/6
Camco 50RGS4H16-300 Bodine Electric 24A4BEPM-3F Gearmotor HP 1/17 130 V, 117411
CAMCO FERGUSON 92C85797020000 VARIABLE SPEED DRIVE
Camco MIC8207-E ACM Control Module Board 90 Day
CAMOZZI 2LA-AM 47T
Camozzi 338-955Tf Mechanical Valve, Roller Lever, Spool Type, Spring Return
CAMOZZI 338-975TF VALVE
CAN BASE 4 Rev.:1.10
Canon BG3-4287-000 Wafer Feed Hand Unit, Yaskawa SGM-A2C3CN12 Motor, 122975
CANON BG3-4291-000 LITHOGRAPHY TOOL CONTROLLER, BG3-4291, 113172
