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。
HONEYWELL COMMICATIONS CARD 51195178-100 REV A
GE GENERAL ELECTRIC MAGNETIC STARTER COIL 380/460V 55-150695G004
DM SSIEMENS T36 OVERLOAD HEATER ELEMENT
TIMKEN DEEP GROOVE BALL BEARING 1" BORE 2.44" OD .94" WIDTH 206KRR6
NATIONAL INSTRUMENTS PCI-GPIB INTERFACE CARD 183617G-01
DM SABS 2" 0-160 PSI PRESSURE GAUGE 14FMC7
EDWARDS EST SIGA-MCT2 REMOTE TRANSPONDER
SMC VQD1151-5LO SOLENOID VALVE
BROWNING 1VP50X7/8 7/8" FHP SHEAVE SHE00197 1VP50X7/8
MOELLER PKZM0-6.3 MOTOR STARTER W/ SE00-11-PKZ0 COIL 24 VDC NHI-E-10-PKZ0
INTEL PRO / 1000 MT DUAL PORT PWLA8492MT SERVER NETWORK ADAPTER 2 BRACKETS
DM STELEMECANIQUE 4-6.3 AMP MOTOR CIRCUIT BREAKER 600 VAC 3Ø 5 HP GV2ME10
ASCO RED HAT VALVE REPAIR KIT 302014
MILWAUKEE UP509 UP904 1" NPT ULTRA PURE BRONZE CHECK VALVE 300 WOG
WYSE VXO THIN CLIENT V10L WTOS 800M 128/128 OPT MSE 902138-07L
TWECO MIG-G OPTIMUM WIRE CONDUIT ASSEMBLY 45-3545-25
BROWNING BUSHING BORE TIMING BELT PULLEY 17HB150
MARTIN SK 5/8 QD BUSHING 5/8" BORE 3-7/8" OD FACTORY
SWAGELOK SS-1210-8-8 STAINLESS FEMALE ELBOW 3/4" TUBE OD X 1/2" FNPT
DM SARLINGTON CG100875 NMCG100875 STRAIGHT STRAIN RELIEF CORD CONN. OF 5
DM SDODGE TAPER LOCK BUSHING .8750" BORE 1.39" OD 1008x7/8 KW 117074
ALLEN BRADLEY PLC CABLE 1746-C9 SERIES A
ITT MCDONNELL MILLER NO. 2 MODEL 2 BOILER WATER CONTROL W/ CUT SW.
DANFOSS RA THERMOSTATIC TAMPER PROOF OPERATOR VALVE MOTED SENSOR
TYCO LIGHTCRIMP CONNECTOR KIT
MAX 10' ROLLER CHAIN ANSI 40R 1/2" x 5/16" W/ 2 LINKS (SPRING CLIP TYPE)
APOLLO 30-204-01 3/4" BRONZE GATE VALVE CLASS 150 MODEL 1071
MARTIN ROLLER CHAIN SPROCKET 60BS16 1 15/16
DAYTON 1/70 HP FAN BLOWER MOTOR 3000 RPM 230 VAC 3/16" X 1" SFT 4M074A
DAYON 117 CFM AC AXIAL FAN 4-11/16" 3150 RPM 0.24A 20W 115V MODEL 6KF75
DM SMAUREY 3/4" SINGLE GROOVE PULLEY 4200 x 3/4
MEAN-WELL 24 VDC OUTPUT POWER SUPPLY 5 AMP 100-240 VAC INPUT 3.3-2 A DR-120-24
FUJI ELECTRIC MANUAL ROTARY MOTOR PROTECTOR 10A 600V 5 HP 3P N.O. BM3RHB-010
TEEL HEAVY DUTY FLOAT SWITCH 120 VOLT 4RK29
DM S OPTO 22 4 TO 20mA INPUT MODULES AD3T
DM SCISCO 72-2632-01 STACKWISE STACKING CABLES 41826 BAGS
DM SBREWER IS166 SHOULDER IDLER STUD 5/8" SHAFT
FAG RADIAL DEEP GROOVE BALL BEARING 35mm ID 80mm OD BORE 6307 C2
LITHONIA LIGHTING 8 WATT HALOGEN TAN REMOTE LIGHTING HEAD ELA H0812
LANDSDALE 1-1/4" BRASS BALL VALVE 600 WOG 1/2 PSI 600 PSI
DM SNSK DEEP GROOVE RADIAL BALL BEARING 17mm ID x 40mm OD x12mm WD 6203ZZ
DODGE TAPER LOCK BUSHING 1-15/16 KW 117173
MASTERDRIVE BTS SHEAVE B SECTION 1 GROOVE BK50-1
COOPER WHEELOCK SBB-W 103193 SURFACE BACK 5.5" X 5.5" X 3.5"
TSUBAKI 1-15/16" TAPER LOCK BUSHING W/ SET SCREWS 2517
DM SDODGE 1-1/8" TAPER LOCK BUSHING W/ SET SCREWS 117090 2012 1-1/8KW LOT 2
DODGE TAPER LOCK BUSHING 1-1/4" BORE 1/4 x 1/8 KEYWAY 119112
GENUINE HEWLETT PACKARD HP 96A C4096A PRINT CARTRIDGE LASERJET 2100 2200
GENUINE HEWLETT PACKARD HP 96A C4096A PRINT CARTRIDGE LASERJET 2100 2200
APPLETON FOR V51 SERIES LIGHT FIXTURES CLEAR GLASS GLOBE APPLETON VGL-2CL
DM S APPLETON FOR V51 SERIES LIGHT FIXTURES CLEAR GLASS GLOBE APPLETON VGL-2CL
LIEBERT HG-UW SOLID STATE HUMIDITY CONTROL 24VAC
DM SSLOAN H-543-AA 3/4" SCREWDRIVER STOP REPAIR KIT H-540, H-600
DM SDM SSLOAN H-543-AA 3/4" SCREWDRIVER STOP REPAIR KIT H-540, H-600
TIMKIN TAPERED ROLLER BEARING C1.5625" ID 1.0100 " CWIDTH 2789
HIWIN LINEAR GUIDEWAY 65 x 48 x 20.5 LGW15CBZ0H
HEX HEAD CAP SCREW 1-1/4-7 X 7 RIGHT HAND GRADE 8
SIEMENS 3RV1021-1BA10 SIRIUS MANUAL MOTOR STARTER WITH 3RT1017-1AK61 CONTACTOR
NSK ANGULAR CONTACT BALL BEARING 5306TNC3
SCHNEIDER TELEMECANIQUE 1.6-2.5A MOTOR CIRCUIT BREAKER DISCONNECT GV2ME073
SET 2 LINER WIPER BLADE 15" BLACK BLD HD FG-15" FRTLNR P/BG AND 18969 78
TEEL WATER SYSTEMS 2P313C JR PIGGY BACK FLOAT SWITCH 115 VAC FGSA1110T
DORMONT DMH-398A STAINLESS APPLIANCE GAS CONNECTOR 376-92-M 48" LONG
FEDERAL SIGNAL PR PROJECTOR GRAY 01270
DM S FEDERAL SIGNAL PR PROJECTOR GRAY 01270
MARTIN 1-1/4" SPROCKET 13 TEETH 60BS13HT 1 1/4
HAYWARD 1-1/2" STAINLESS STEEL SADDLE CLAMP SENSOR FSSSWF15M
EMERSON WHITE RODGERS F29-0232 THERMOSTAT GUARD THERMOSTAT PROTECTOR
DM SWTN-CONTINENTAL 1/0-IAC-R0-280 INTERFACE MODULE
DM SLANCER SODA VALVE NOZZLE For LEV4.5 Valve AX# 82-2014/03-SP
SWAGELOK SS-1210-7-12 STAINLESS FEMALE CONNECTOR 3/4 TUBE O.D X 3/4 FNPT
SWAGELOK SS-8-TA-1-12 MALE TUBE ADAPTER 1/2" TUBE OD X 3/4" NPT
FAG S3507 2RSR C3 DEEP GROOVE SINGLE ROW BALL BEARING
DM SGE FLUORSCENT BIAX D FLUORESCENT BULB 2 PIN 26W F26DBX/827
BOSCH D7050 PHOTOELECTRIC SMOKE DETECTOR
OMRON 100 VAC 0-2.0 SECONDS SOLID STATE TIMER TYPE DTS-100VAC WITH BASE
DODGE MEDIUM DUTY VALVE LINE SET SCREW VSC BALL BEARING 1" BORE 389926
DM S WEIDMULLER RELAY BASE 8556030000 / MRS 120VUC 1CO LOTS OF 3
F.K BEARINGS STAINLESS STEEL ROD END BEARING W/ TEFLON LINER SCF8T
YOKOGAWA 3 W TIME METER 120 VAC 60 Hz YOK240311AAAB
DM SSNR 6205 130 SINGLE ROW BALL BEARING
NO NAME BRAND VB22060 DEBURRING SYSTEM
DM SAURORA MM-8KZ MALE ROD END BEARING
PARKER RECTUS 3/8" BRASS DOUBLE SHUTOFF HOSE PLUG 25SBTF10MPX
FLOW EZY P20-11/4-100 FILTER
DM SWESTINGHOUSE H19 OVERLOAD HEATER TYPE A SERIES F 177C524G19
3 SELECTA SL53413-6-BG GREEN INDICATOR LIGHT 125V NEON 25000 HRS 1/2" OD
RECTUS 3/8" BRASS MALE COUPLING 25 NW 7.8
AGIE STB-01A SIGNAL TERMINAL BLOCK BOARD 621132.0
AGIE STB-03A SIGNAL TERMINAL BLOCK BOARD 621.792.1
R.H. 597000
R.H. 597000 - FLAW
DM SKOYO CAM FOLLOWER BEARING CRS-16 1" O.D
MRC SINGLE ROW BEARING 20mm BORE 47mm OD 14mm WIDTH 204S H501
GASCO FLOW 2.5 SLPM GAS CYLINDER REGULATOR W/ASHCROFT 0-600 PSI PRESSURE GAUGE
SERTA C264-5.0 PRESSURE TRANSMITTER 0-5.0" WC 24 VDC
NUMATICS 15A PNEUMATIC SOLENOID VALVE 110/120 VAC 150 PSIG-AIR 081SA4006000030
ISSC PROXIMITY LIMIT SWITCH 1228-1-A-3-A 1228 PROXIMITY SWITCH 115VAC 30VA
DM S CUTLER HAMMER FH37 THERMAL HEATER OVERLOADS
MARTIN 50BS15HT 1 1/2 1-1/2" SABERTOOTH SPROCKET 50 PITCH 15 TEETH
SKF 54972 SINGLE LIP OIL SEAL 5.5'' ID 6.75'' OD CRWH1 R
DM S FIN 1/2-13 STAINLESS 316SS HEX NUT
DM S INA 61803 HLU DEEP GROOVE BALL BEARING LOT OF 6
DM SFEDERAL-MOGUL OIL SEAL 450548 1.500 x 2.250 x .375
EATON DIL EM-10 XTMC9A10 CONTACTOR 3Ø 600VAC W/ 2.4-4 AMP OVERLOAD XTOM004AC1
MRC 5205CFF STEEL/C3/ABEC-1 BALL BEARING
DM SLEDTRONICS 120 VAC LED WHITE CANDELABRA LIGHT BULB SLF467-SIW-120A-UL
LAFFERTY BALL VALVE STAINLESS 1/2" FM ROD HANDLE 413641RH
NTN 079147-01-AT BEARING
DURO INDUSTRIAL THERMOMETER 30-270° F
ALLEN-BRADLEY CONTACTOR INTERFACE BOARD 50404
BROWNING H SERIES SPLIT TAPER BUSHING H 5/8
ALLEN BRADLEY 1203-SM1 SLC 500 SCANport MODULE SERIES A FRN 1.01
WARNER ELECTRIC MCS-836 PHOTOSCANNER PLUG IN TIMER MODULE 7400-448-024
ASCO 24VDC SOLENOID VALVE 40 AIR PSI 35 WATER PSI 30 LT OIL PSI U-8325-B3BV
HONEYWELL BLANK COVER MODULE TC-XXXXX1 REV A01 96906271-A01
DM SPCI PARTS CONNECTION INC 5B0308 REPLACEMENT BULB STROBE 795-206 LOT 2
AVOCENT AVRIQ-USB2 VIRTUAL MEDIA CABLE MODULE 520-888-501
AGIE DBE-01A DIGITAL BIDIRECTIONAL EXPANSION BOARD 613.810.1
AUTOMATION DIRECT TERMINATOR OUTPUT MODULE W/ BASE T1K-16ND3
ALFA LAVAL STATIC SEAT MECHANICAL SEAL R5630.121 / 9630069809
LEDTRONICS BSD-1214--006 LED LIGHT KIT FOR ET-16 PILOT LIGHTS
LEDTRONICS BSD-1214-026 WHITE LED LIGHT KIT FOR ET-16 PILOT LIGHTS
LEDTRONICS BSD-1214-002 RED LED LIGHT KIT FOR ET-16 PILOT LIGHTS
YOKOGAWA 0-150 AC AMPERES PANEL METER GE TYP 250 3-1/2" ELLIOTT 33310-150
YOKOGAWA 0-300 AC AMPERES PANEL METER TRIPLETT 430-G GE 251439LSZZ8
DM STIMKEN SINGLE ROW FAFNIR RADIAL BEARING 204KRR2
DM S DM STIMKEN SINGLE ROW FAFNIR RADIAL BEARING 204KRR2
DM S MORSE NO.50 2 PITCHSET LINK 323540 LOT OF 6
THOMSON SUPER PILLOW BLOCK SPBA8 / SPB8ADJ
THOMSON SUPER PILLOW BLOCK SPB 8 ADJ / SPB 8 ADJ-BG
RELIANCE AUTOMATE 45C98 ENHANCED MEMORY MODULE 45C98B CARD 59004-10D