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。

SWAGELOK SS-12-TA-1-12 MALE TUBE ADAPTER 3/4" TUBE OD X 3/4" MNPT

SWAGELOK SS-1210-1-6 MALE STRAIGHT CONNECTOR 3/4" TUBE OD X 3/8" MALE NPT

 GOYEN M1131B SOLENOID VALVE REPAIR KIT 302  CA-Q VALVES

GRUVLOK 3" INCH GASKET SERIES 7000, 7400, 88.9MM OD

KILLIAN KNR-FL205-1 NO RUST HO FLANGE MOT CORROSION RESISENT HOUSING

 HAGO M-10 M10 BRASS MINI NOZZLE 10.00 GPH 100 PSI

ALLEN BRADLEY BLUE PILOT LIGHT 22MM 800FP-P6PN5W LED BULB 120VAC 800F-N5W

ALLEN BRADLEY YELLOW PILOT LIGHT 22MM 800FP-P5PN7W LED BULB 120VAC 800F-N5W

 HAGO M-5 M5 BRASS MINI NOZZLE 5.00 GPH 100 PSI

 HAGO M-3 M3 BRASS MINI NOZZLE 3.00 GPH 100 PSI

 MARTIN 35JA30 ROLLER CHAIN SPROCKET 30 TEETH 30 JA BUSHING

SIEMENS 3SU1150, Emergency Stop Push Button

SLOAN EBV-1022-A BATTERY POWERED FLUSHOMETER INSIDE PARTS REPLACEMENT KIT

 SLOAN EBV-1022-A BATTERY POWERED FLUSHOMETER INSIDE PARTS REPLACEMENT KIT

DM SFURNAS (SIEMENS) 52BAJ OIL TIGHT CONTACT BLOCK 1 NC

 DM SFURNAS (SIEMENS) 52BAJ OIL TIGHT CONTACT BLOCK 1 NC

SERVICE FIRST TRANE CTR02573 CONTACTOR 2 POLE 30 AMPS 24VAC with Screws

 SERVICE FIRST TRANE CTR02573 CONTACTOR 2 POLE 30 AMPS 24VAC with Screws

WIKA 4-3/4" FACE 0-300 PSI BOTTOM NPT 1/4" STAINLESS PRESSURE GAUGE

WOODHEAD 120VAC GROD CONTINUITY TESTER 1756

DM S GE GENERAL ELECTRIC C8.67A THERMAL OVERLOAD HEATER ELEMENT

DM S GE GENERAL ELECTRIC C2.39A THERMAL OVERLOAD HEATER ELEMENT

 SMITH CAM FOLLOWER BEARING CR-1-XBC ROLLER 1" DIA. 0.4375" STUD

 CUTLER HAMMER () THERMAL OVERLOAD HEATER ELEMENT FH78

 GENERAL ELECTRIC () THERMAL OVERLOAD HEATER ELEMENT C695A

 BOWER/BCA BEARING 3420 FEDERAL-MOGUL 3420

DM SABB 0-160 PSI GAUGE 2" DIAL 1/4" NPT BACK MOT BRASS 4FMC7

SCHNEIDER TELEMECANIQUE 4-6.3A MOTOR CONTROLLER DISCONNECT 5HP 600VAC GV2ME10

 FLOW EZY FILTERS BF-2143 3/4" TANK BREATHER 40 MICRON STEEL

 DELL MEMORY MODULE SNP888JGC/8G

NOKIA FOSP SFP 9.8G 10Km 1310nm 472949A.101 MA19530840878

 CHERNE INDUSTRIES 4" MECHANICAL LOCKING PLUG 271683

DM S CHERNE INDUSTRIES 4" MECHANICAL LOCKING PLUG 271683

EMTRON 10 AMP CURRENT TRANSFORMER TYPE CTM-010 P/N 01-2471-10

DM SBrass 1/4" HOSE BARB FITTINGS 1/4" LOT OF 7

 MARTIN QUICK DISCONNECT BUSHING 1 3/16" BORE SDS 1 3/16

BALDOR DODGE TAPER LOCK BUSHING 5/8" BORE 117081

 MARTIN TAPER LOCK BUSHING 49mm BORE 2012 1-15/16

 MCGILL 4-BOLT FLANGED BEARING 7/8" BORE FC4-25-7/8

PARKER QUICK COUPLING ST SERIES BRASS BST-4

SCE SAGINAW CONTROL AND ENGINEERING BOLT KIT FOR WALL MOT 101974

  TORRINGTON FAFNIR 4 BOLT FLANGE BEARING RCJ 7/8"

 ALLEN-BRADLEY NEMA A600 OVERLOAD RELAY 120-600 VAC 592-B0V16

  D-LINK 5-PORT ETHERNET SWITCH DES-105

   D-LINK 5-PORT ETHERNET SWITCH DES-105

 DODGE 100567 CHAIN SPROCKET 60BTL16H-1610

DM STELEMECANIQUE GREEN PILOT LIGHT XB4BVB3, RED PILOT LIGHT XB4BVG4 SET OF 2

DM SLEVITON IVORY DECORA SLIDE DIMMER 1-POLE 600W 120V 6621 OPI

DM SDM SLEVITON IVORY DECORA SLIDE DIMMER 1-POLE 600W 120V 6621 OPI

DM SSWAGELOK SS-400-7-2 STAINLESS FEMALE CONN. 1/4 TUBE X 1/8 FNPT

 ALLEN BRADLEY 0L06 COIL 220V 60 CYCLE OLO6

 SWAGELOK PLUG VALVE B-6P4T 1/4" TUBE

PARKER PK2502MA01 PISTON SEAL KIT

 EATON CUTLER HAMMER OVERLOADS H20 - CHOOSE YOUR NUMBER

DM SIMO LED LMB-24-BLUE 24VAC/DC

DM SLEVITON 40274-I 625A2 4-CONDUCTOR 5C380 SURFACE MOT JACK LOT OF 8

PARKER 4ET4-316 A-LOK TUBE ION TEE 1/4" 2 FERRULE COMPRESSION FITTING

DM SHAWKEYE 904 VERIS SPLIT-CORE SELF-CALIBRATING CURRENT SENSOR

 SQUARE D CC OVERLOADS - CHOOSE YOUR NUMBER

DM SSWAGELOK VCR FACE SEAL FITTING 1/4" MALE VCR x 1/4" MALE NPT

DM SASHCROFT 15W1005 H OIL 30# PRESSURE GAUGE 1-1/2" FACE 1/8 NPT

TRANE RLY01040 RELAY SPDT, 24VAC COIL, 7 BLADES

 FEDERAL SIGNAL K8271A013 HORN DIAPHRAM

12-Piece Stainless Steel Wax Carvers Set - DD312

DM SSWAGELOK SS-200-C 316 STAINLESS STEEL CAP FOR 1/8" OD TUBING

 KB CONTROMATICS 3/4" BALL VALVE SS FNPT 2000 PSI W/ LEVER 3/4" 2000 WOG CF8M

 EGG SEALOL 2687166 SEAL KIT

SCHNEIDER TELEMECANIQUE 1-1.6A MOTOR CIRCUIT BREAKER DISCONNECT 600VAC GV2ME06

 SYLVANIA LUMALUX HIGH PRESSURE SODIUM 400 WATT LAMP LU400 67533-0

DM SCUTLER HAMMER H1017 THERMAL OVERLOAD

DM S ALLEN-BRADLEY W40 THERMAL HEATER OVERLOADS,

SIEMENS 6ES7 138-4DC00-0AB0 SIMATIC S7

  BERNARD RIDGID STRAIN RELIEF AIR COOLED 1880074

DM SCHERNE 2" GRIPPER MECHANICAL PLUG 270-229 CHERNE 2" GRIPPER PLUG LOT 2

 ASCO 1/4" VALVE 6 WATT 36 PSI 24 VAC COIL HU180441 OPEN

BANNER INDUSTRIAL CONTROL PLUG-IN MODULE 9-16 VAC 15 VDC B3-1500

 TEXAS INSTRUMENTS 8 INPUT 8 OUTPUT LOGIC INTERFACE 6MT33

1DM SMILLER FLUID POWER 350-TSE01-100 1/2" CHROMATE TRU-SEAL LOT OF 12

DM SASHCROFT 0-160 PSI PRESSURE GAUGE 5WH01 /15W1005PH 01L XZG 160#

 SPIRAX SARCO 2" FLOAT KIT 55448

DM SSMC PROXIMITY SENSOR D-F79W 3 WIRE 5-24VDC

  GENUINE EPSON T6052 CYAN K3 INK CARTRIDGE STYLUS PRO 4880/4800 110ml

 JIPER 1GB BASE SX LC DUPLEX SFP AND TRANSCEIVER SFP-1GE-SX 740 031851

 FYH BALL BEARING CARTRIDGE IT BORE 3/4" SBBR204-12KG5

  NSI TORK 2421 LIGHTING PHOTOCONTROL 480 VAC 1.5 AMP MAX

DM S  NSI TORK 2421 LIGHTING PHOTOCONTROL 480 VAC 1.5 AMP MAX

 NIDEC BETAV BALL BEARING 12V FAN 120MM 12VDC 1.40A B35502-35

  NIDEC BETAV BALL BEARING 12V FAN 120MM 12VDC 1.40A B35502-35

 SON 120 x 120 x 38mm AXIAL FAN 0.125A 220/240 VAC MODEL DP201A

  CHICAGO LATROBE 48556 7/8 HSS GP 7/8 HSS GP SM DRILL STYLE 157

  TB WOODS SG BUSHING 1-1/2" BORE SDS112

ACCUSTAR ELECTRONIC BALLAST 120-277V B254PV-D

FAFNIR 307KDG BALL BEARING

GENUINE CISCO SFP-H10GB-CU5M 10GBASE CU SFP  CABLE 5 METER REV H0

 GENUINE CISCO SFP-H10GB-CU5M 10GBASE CU SFP  CABLE 5 METER REV H0

BREUER MACHINE  GEAR IDLER SPROCKET 1" BORE 1.3125/1.3135 BRW40B19F

 ESA HEATING PROUDUCTS SG-1453 240V 4500W

DM S3M 502 FILTER ADAPTER 5000/6000 Series Respirator Cartridges

 DM S3M 502 FILTER ADAPTER 5000/6000 Series Respirator Cartridges

DM SSWAGELOK SS-4-TA-1-8 MALE TUBE ADAPTER 1/4" TUBE OD X 1/2" NPT

DM SSWAGELOK SS-600-C STAINLESS STEEL CAP FOR 3/8" TUBE FITTING

  DELL SEAGATE 9FU066-150 146GB 15k SAS-2 2.5" HDD HARD DRIVE

 NORGREN V60A4D7AX50900 PNEUMATIC VALVE 3 WAY 1/4" PORTS

DM SFURNAS H48 THERMAL OVERLOAD HEATER ELEMENT

QUICK CABLE 4 GAGE BRAIDED GROD STRAP 7403-001 LUG-TO -LUG 13” LONG

SWAGELOK SS-400-6-2BT STAINLESS STEEL REDUCING TUBE ION 1/4” TO 1/8"

ALLEN BRADLEY CONTROL NET CABLE 9904TPR/B

DM SSWAGELOK SS-600-1-2 316 STAINLESS FITTINGS 3/8” TUBE x 1/8”NPT

AEROVOX 250P330GN 6.5Uf 330VAC A10000 AFC

DM SSWAGELOK SS-4-TA-7-8 FEMALE TUBE 1/4" TUBE X 1/2" FEMALE NPT

BUSS JP60030-3CR FUSEBLOCK 30 AMP 600 V 3 PHASE CLASS J

 ListingSPORLAN TEST-ALL TA-1 ACID TEST KIT

DM SSPORLAN TEST-ALL TA-1 ACID TEST KIT

 INA LINEAR BEARING 25mm ID 35mm OD 40 mm WIDTH KH2540

 PHILIPS 12W WHITE DIMMABLE FLOOD LIGHT 900 LUMENS 25° FLOOD PAR30S

DM SBUSSMANN BC6031S 1-POLE FUSE BLOCK 30A 600VAC CLASS CC FUSES

DM SBUSS FUSETRON CLASS RK5 FUSES FRS-R-1-1/4

DM SBUSS FUSETRON CLASS RK5 FUSES FRS-R-2-8/10

  TINGLEY RUBBER BLACK WINTER-TUFF ICE SPIKES SIZE MEDIUM 1150

  TINGLEY RUBBER BLACK WINTER-TUFF ICE SPIKES SIZE LARGE 1150

 SPHERCO 3/4" FEMALE ROD END TR-12N

 SQUARE D CC STYLE OVERLOADS - CHOOSE YOUR NUMBER

DM S SQUARE D CC STYLE OVERLOADS - CHOOSE YOUR NUMBER

 SKF RADIAL DEEP GROOVE BALL BEARING 6306 2ZJEM

 GENERAL ELECTRIC TQDPLD1 TYPE TQD-225 O LINE HANDLE PADLOCK

 PK OF 5 VACBAGS VAC BAGS 4465 S52-14 FOR SID HARVEY  MASTERCRAFT PK OF 5

 DM SHOFFMAN FILTER FAN ACCESSORY AIR FILTER REPLACEMENT 89134427R

 DM SDODGE TAPER LOCK BUSHING 1.1875" BORE 1.87" OD 1210x1-3/16 KW 117156

 ITE SIEMENS () THERMAL OVERLOAD HEATER ELEMENT T45

 GENERAL ELECTRIC () THERMAL OVERLOAD HEATER ELEMENT C131A

 GENERAL ELECTRIC () THERMAL OVERLOAD HEATER ELEMENT C301A

DM S GENERAL ELECTRIC () THERMAL OVERLOAD HEATER ELEMENT C301A