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

 4400, IMS FIXED ATTENUATOR, A-0805-C-03DB,  #AB74

 45 haven LCD Display Module, NHD-0216K3Z-NSW-BBW-V3,

 45, Samsung 419, K6X8008T2B-TF70, TLTC06CC, K6X8008T2BTF70, G#30

 45, Texas IC REG LINEAR 3.3V 500MA, LP2989AIMM-3.3/NOPB‎,

45.500.404 PUMP CHECK VALVE REPAIR KIT FOR HIGH PRESSURE WASHER - LOT OF 15 PCS

 450, Cal-Chip Molded Tantalum Capacitors, TCM0J107DT,  #AB78

 4500 Vishay Chip Resistor CRCW06031K00JNTA, #N149

4500MFD 400 - 450VDC HITACHI POWER CAPACITOR HCGHA ad2c3

 468, CEL RF Bipolar Transistors, 2SC4536-T1-AZ, #AA47

 47, SWAGELOK Tube Butt Weld Gland, 1/2" VCR x 1/4" TB3, 6LV-8-VCR-3-4TB3

 4700, IMS 0 MHz 10000 MHz RF/MICROWAVE FIXED A-0805-C-08DB #S21

4700UF 385V KEMET / RIFA PEH200XV4470MU2 BEST QUALITY INDUSTRY CAPACITOR ad2L12

4700UF 400V EPCOS B43310-A9478-M BEST QUALITY INDUSTRY CAPACITOR ad1y2

 4800 Rohm Chip Resistor MCR10EZHF1000,  #N152

 483 Texas LMC7211AIM5/NOPB, IC COMPAR TINY R-R CMOS SOT23-5 #S8

486 MODULAR BIOS V3.05abd,RADISYS ECV-31 60-0132-01 CPU BOARD

48609-60100 SUPPORT SUB-ASSY, FRONT SUSPENSION RH FITS TOYOTA 4RUNNER - TACOMA

 488 SAMTEC Conn Unshrouded Header HDR 12 POS, MTSW-106-24-S-D-285 #169A10

 488, TE 9-146278-0, 91462780, CONN HEADER VERT 40POS 2.54MM,

491-6705: LED LAMP HARNESS FITS CAT

4918185  OEM CUMMINS IGNITION DIAGNOSTIC TESTER

 493 STmicro MJD127T4, 497-2471-2-ND, MJD127T4$Z1,  J#12

 4APC-0P4615A-TST,APC BIG VIKING MC 640-4615A REV:03 PCB BOARD

4BE00569C1,EBC569 REV:C,R1.1C/0CF2 EBC569LP6 BIOS C-060 BOARD

Bronkhorst mass flow meter controller 1/8" VCR, L23-AAD-99-K-30S #BOX 14 "P7"

ELKAY 320A REMOTE MULTI RANGE TIMER SWITCH 1 SEC -HOURS fce1b

GLENAIR 8732 Circular MIL Backshell, M85049/10-41W, M850491041W #137B5

GLENAIR Circular MIL Spec Backshells, 380HS003M2112A4,

ISI INSULATOR Crynogenic Liquid Break 1/4" VCR M/F, 00256-00, #130Z43 Box A

ISI INSULATOR Crynogenic Liquid Break 1/4" VCR M/F, 0536101, #130Z42 Box A

PARKER 8A-B8LJ-SSP, 8AB8LJSSP, Two Way Ball Valve 1/2",  #137FS4

ROSEDALE FILTER CARTRIGE 10-190-C-TEV-S316-222/FIN, 10-280-C-TEV-S316-222/FIN

Swagelok ALD3E, 6LVV-MSM-ALD3E3-P-C-S-15863, BES 516-3007-E4-C-PU-05 #1639F33

SWAGELOK FLEX HOSE Fiber Braid Smooth PTFE Hose 1/4'' x 36", SS-XT4TA4TA4-36

Swagelok Particulate Filter 1/4" Tube, 7 MIRCON, SS-4TF-7,  #126E3

SWAGELOK Socket Weld Tee 3/4", 316L-12TB7-3, 316L12TB73 #127T2

SWAGELOK WHITEY High Pressure 3-Way Ball Valve, SS-83XTS4, #128R3

WIKA High Purity Transducer 1/4" FVCR, WUD-25, 52920351, #141D1

4x, 31829TC-02 DET 33, 31829TC02DET33, REAR FRAME SUPPORT PILLAR,

4x, Legris 3320 04 00 12, 3320040012, Multi-Connector Male Screw Body 1/4" Tube

4x, Swagelok Braid Hose 1/4” Tubing X 36" , SS-FJ4TA4TA4-36,  #142K

- 1/2" 90º BRASS PRESSURE DROP EAR ELBOW CxC NSF-61-372 (5/8-ID)

- 7/16 - #(11) NUT DRIVER

 EBC - EBC347S - STANDARD MOTORCYCLE BRAKE SHOES KIT

 EBC - EBC628G - STANDARD MOTORCYCLE BRAKE SHOES KIT

 EBC - EBC719 - STANDARD MOTORCYCLE BRAKE SHOES KIT

5 BOX OFHANGER 010108 - BB1279 4.5" X 4.5" US26D HINGES (15 pcs)

Bussmann 170N3436, 0000FU/65, 89254, 60A, 660V,  #1616AL

CELLO TEE WPT 16-12-12 WROT COPPER FITTING 1X3/4X3/4

CMD 21027-120-100 ¾" WATER MANIFOLDX 2" SOCKET X BLIND -SPA/HOT TUB

DESCH TAPER BUSH SIZE 2012 1-1/8"HOLE

EVERBILT # 689735 LFA-163 ⅜" FLARE BRASS CAP FITTING

FERNCO 3001-215 SHIELDED TRANSITION COUPLING

FESTO Manifold PRMZ-5-M5-4 (30244) & PRMZ-5-M5-3#1631B4 (30243) #1631B4

5 INCH 122MM WAFER VACUUM CHUCK,TS3617N2E4,SYK FK08_C5,W0800MA-1PY-C3Z

5 INCH 122MM WAFER VACUUM CHUCK,TS3617N2E4,W0800MA-1PY-C3Z

IRWIN 3053022 T9 INSERT BIT TAMPER PROOF

IVES 3HG.10843 - 3SP1 4.5 X 4.5 FBLK HINGE

MARINE FASTENERS #BOSTSW1/2C5.25X3.437 MARINE BOAT STERN BOW TIE DOWN

Maxim Integrated IC UART SPI/MICRWIRE COMP 16QSOP, MAX3100EEE #V12

NDS #1700-20 FLO CONTROL PVC UNION SPRING CHECK VALVE

OMRON Limit Switches 1/2-14NPT, 2NC, D4NS-3BF, D4NS3BF,

OMRON Photoelectric Sensors Hi-LED, E3X-DA51-S, E3XDA51S,

PANASONIC Photoelectric Sensor Thru-beam Dark, EX-13EB-PN,

PARKER Ball Valve 1/4" Comp, 4Z(A)-B6LJ-SSP, #BOX 1 "CH”

PIECES NAPA SOLUTIONS CORE HOLE PLUG 600-4003

POLE 10 WAY PAINTON ROTARY SWITCH  IDEAL FOR AUDIO fd5e1

PRIME CHOICE WHEEL HUB BEARING ASSEMBLY #HB615038 REPLACES 516036-BR930304

 ROLL DORSET TUBES 6.35MM X 0.71MM - 90/10 BRAKE LINE PIPE COIL BSEN 12449

SOUTHCOHOLES BLACK DRAW LATCH

SPX Butterfly Valve Sanitary .75", 1.5", 2" (4  / 1 )

SWAGELOK 6LV-4-WVCR-9-DF, Female Elbow 1/4" FVCR,  #1220P2

SWAGELOK Braid Hose Braid hose 1/2" Comp x 9", SS-FL8SL8SL8-9, #128F2

SWAGELOK Flexible Tubing 1/4" X 24" LG, 321-4-X-24-B2,

SWAGELOK Quarter Turn Instrument Plug Valve, SS-2P4T,

Texas 8-bit Microcontrollers MCU 8B, COP8SBR9LVA8/NOPB, #Y10

THERMOCOUPLE 18" WITH ADAPTERS - 72218

5 VARIOUS PRECISION SMA ATTENUATORS, SUHNER, MIDWEST MICROWAVE ETC, ad2n38

VERMONT AMERICAN #16643 1/2" COUNTERSINK 82º

YAMAHA B5H-K8366-00 CLAMP SUPPORT

Allen Bradley Output Module, 1734-0B4, 1734-RTBS, 1734-MB, #1329C

Analog Devices Detector 1MHz-4GHz 80 dB, ADL5513ACPZ-R7, ADL5513ACPZR7

ANDREW RIGID HANGER 19007-187, 19007187,  #1654D6

HOKE FILTER REMOVABLE 1/4" GYROLOK, 20-30 MICRON, 6324G4Y,

IFM INDUCTIVE SENSOR IE5338, IEBC003BASKG/AS, #1553Q2

McDONNELL DOUGLAS PCB Board, 12464-A69G0739-1, PDI93-32, #1225Z5

MITSUBISHI PERIMETER CONTROL, FR-PU03E, FR-PUO3E,

MSI PROTO-00395, Pressure Transducer M5134-10220X-875BG, #1610A9

SHURFLO ACCUMULATOR TANK 125 PSI, 181-400, 181400,

SWAGELOK Braided Hose, SS-FJ8TA8TA8-18, SSFJ8TA8TA818,

SWAGELOK CHECK VALVE 3/8",PSI, SS-6C-BU-25, #1622A31

Swagelok Face Seal Tube Butt Weld Gland 6LV-16-VCR-3-16TB7 #1327C6

SWAGELOK FLEX HOSE Fiber Braid Smooth Bore PTFE 1/4'', SS-XT4TA4TA4-24

SWAGELOK Flexible Tubing 1/2" X 12", 321-8-X-12-B2,

SWAGELOK Particulate Filter 0.5 Micron 1/4" VCR, SS-4F-VCR-05, #1537B6

SWAGELOK Reducer VCR 1/2" FVCR x 1/4" FVCR, 6LV-8-WVCR-6-DF-4 #117R3

 AZTEC - COR-GUARD MASTER WASHER ¼" X ⅝" MASTER SEAL RUBBER

PACK THERMOSTRIP 10-160 12002H 1-TEMP TEMPERATURE INDICATOR 160 F / 71 C

PCS 3-PIN MALE TO FEMALE SERVO EXTENSION LEAD WIRE CABLE FOR RC

PIECES ORIGINAL PHILIPS BT137-600D TO220 8A 600V TRIAC SCR UK STOCK ae1*7

 Texas SN74LVC1G07DCKR, IC BUFF/DVR NON-INVERT SC705, 296-8486-1-ND#108

 UNBRANDED 1-3/4" (OD) X 1 ½ (ID) X 1/8" NITRILE RUBBER

 ZURN PEX # QQ650CX ½" BARB ½" MALE SWEAT ADAPTER

 50, Bloomfield 2P-74623 Timer Board, Full - 2/3 - 1/3, TBF-T1671-120T1

 500, ATC Multilayer Ceramic Capacitors, 700B3R9BT500XT, #AA36

 500, KEMET Molded Tantalum Capacitor T491C106K025AS, #N139

 500, MURATA Ceramic Capacitor GRM43ER61A476KE19L, #W95

 5000, CAL-CHIP Chip Resistor RM12J100CT, #X63

 5000, Novacap 0402B301K100NT,  N#24

 5000, VISHAY Ceramic Capacitor CRCW0603100KJNTA, #AC6

 5044-000383-11 BOARD,EXT DIO #02,HA-056 PCB I/O

507/1/02326/004 HERMETICALLY SEALED MILITARY PLESSEY 24V 4PCO RELAY (X1) fd5f95

 PANEL MOUNT BULKHEAD SMC FEMALE ITT SEALECTRO (x50) bsb7bb

50V POWER BOARD BOTTOM VER 0.9 FR4,1.6T 1oz HAL AS'IS'

50V POWER BOARD TOP VER 0.9 FR4,1.6T 1oz HAL AS'IS'

50x Phoenix Contact Pluggable Terminal Block 1757129, MSTTB2,5/13-ST-5,08#1176Z9

 51, United Monolithic Variable Voltage, CHT4690-QAG, CHT4690QAG #Q48

510211 SPEED BUZZER SWITCH

 51028819SE PCB BOARD

515066 1 IB FRONT RIGHT OR LEFT WHEEL HUB BEARING ASSEMBLY 6 BOLTS

 52, SWAGELOK ALLOY 400/R-405, NUT 1/2" M-812-1,  #ZL24

 525 SAMTEC HEADER, 2.0MM, RIGHT ANGLE, 2X5 POS, TMM-105-01-L-D-RA #169A14

 525111GD,MGE 51028044XD-1GA GTCI PCB BOARD

525729AE,6405535 AC BOARD

525745000 CENTRIFUGAL SHAFT ASSY EXTENDED 5X6 GD 18829-T B

54-001 404 SF,PUMP,SELLER  

54-002 002 SA,PUMP,SELLER  

54-003925SA BOARD

54-004447SB BOARD

 560, SKYWORKS Schottky Diodes SMS7621-015LF+L3814123+Q3000+094156 #AA57

 565, Sullins PTC36SAAN, Connector Header Through Hole 36 position 0.100"

 570, CENTRAL Ceramic Core Wire-wound Chip Inductor CT1008CSF-102J, #AA53