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。
AMF PARAGON 0-60 SECOND 9W TIMING MOTOR CLUTCH MAGNET 120VAC 470-102 00
YOKOGAWA 200 AC AMP METER 200 AC AMMETER 103-131-LS 103131LS
CONSOLIDATED NJ311 E M C/4 SINGLE ROW CYLINDRICAL ROLLER BEARING
GOULDS PUMP IMPELLER S6603 CF8M 6 VANE STAINLESS STEEL
BOSCH 081WV06P1V1010WS115/60 DIRECTIONAL CONTROL VALVE 9810231009 4600PSI
MOORE INDUSTRIES CCS CABLE CONCENTRATOR SYSTEM OMM/RS485/U/18-30DC-VL,D (DIN)
TECO SPEECON 7200CX 220V CLASS INVERTER 3Ø 0-230V 2.0 KVA 4.7A JNTSBDBA0001JK
TOSHIBA 1 HP TRANSISTOR INVERTER DRIVE 3Ø 380/500 VAC 2.3 AMP VFS11-4007PL-WN
JOHNSON CONTROLS 3R RAINTIGHT FLOW CONTROL SPDT 1/2" F61MD-1C
SIEMENS SINUMERIK 8 SLOT RACK 6FC5 111-0CA73-0AA1 570 532 9201.00
JOHNSON CONTROLS ELECTRIC NON-SPRING RETURN ACTUATOR TORQUE M9116-AGE-2
FESC FC3000 REGULATOR FILTER LUBRICATOR 3/8" FL3000-03 FF3000-03 FR3000
20) TGI TLA-4R10 TOP LOK TOP CH CARBIDE INSERTS GRADE: TN-6 0
SQUARE D 9065 FO-1R OVERLOAD RELAY
ITE SIZE 1 MOTOR STARTER 30 AMP 600 VAC 10 HP 120V COIL 3 PHASE A203C
FASCO D1141 1/15-1/25-1/35 HP 1000 RPM CWSE 115V SHAFT 3/8" X 5-5/8"
Chuang 0-4” Outside Micrometer Set w/ Wood Wrenches Standards .0001'' 11 Pc
ALLEN BRADLEY ENCLOSED SIZE 0 MOTOR STARTER 480 VAC COIL 509-AO*
SKF 32312-Q TAPERED BEARING AND RACE
SQUARE D 9422ARG11 CIRCUIT BREAKER OPERATING MECHANISM 6" HANDLE
SOLA CVS CONSTANT VOLTAGE SINE WAVE OUTPUT 95-130V IN 120V OUT 23-13-030-2
HP T510 THIN CLIENT - SRP US COMPUTER H2P23AT#ABA
JUSTRITE 09100 OILY WASTE CAN 6 GALLON RED STEEL 23 LITERS
OSBORN VLR 4 1/2 LOAD RNER STD STUD V-GROOVE 1 1/4" STUD DIA
WESTINGHOUSE SIZE 3 MOTOR STARTER 50 HP MAX 600 VAC 120 VAC COIL A200M3CAC
WESTINGHOUSE SIZE 3 MOTOR STARTER 50 HP MAX 600 VAC 120 VAC COIL A200M3CAC
NORGREN VALVE V61R517A-A213JB 24VDC 1/4" PORTS 4 WAY
VICKERS DG4V 3S 6C MFW B5 60 DIRECTIONAL VALVE 120 VAC COIL
REN 60A1X10FT RIVETED STEEL ROLLER CHAIN W/ MASTER LINK 60 PITCH 3/4"
EATON 1-1/2" CAST IRON Y-STRAINER W/ SS SCREEN 1709017 / 88273
TORQ-KIT VSP PIPE STAINLESS FLANGE ASSEMBLY KIT NPS 3" 600# STUDS, NUTS
TORQ-KIT VSP PIPE STAINLESS FLANGE ASSEMBLY KIT NPS 3" 300# STUDS, NUTS
JBR1521EVC EVOLUTION COATED FRONT ROTOR 10-11 KIA SOUL
NORGREN FILTER LIQUID LEVEL INDICATOR 250PSI 17 BAR 175°F/80°C F73G-2AN-A
BALDOR .25 HP INDUSTRIAL MOTOR 1725 RPM 56C FR 208-230/460 VAC KM3454
RED LION HINGE CLAMP ASSEMBLY LSAHC001
ALLEN BRADLEY 1756-ENBT ETHERNET COMMICATIONS BRIDGE 63735 F/W 4.008
ACROMAG INTELLIPACK TRANSMITTER / ALARM MODULE 841T-1500
TRANSITION NETWORKS RS-232 TO FIBER MEDIA CONVERTER 12 VDC J/RS232
BR AUTOMATION 7AF104.7 ANALOG INTERFACE MODULE AF104
WATLOW 96 SERIES DIGITAL TEMPERATURE CONTROL 100-240 VAC IP65/4X/12
BETTER PACKAGES TH55PXXXK HEATER KIT FITS A 555S 120VAC
RANCO E37 M1205 001 ICE BANK CONTROL
EST AUDIO SOURCE IT BOARD 140331
ALLEN BRADLEY 1734-IE4C ANALOG INPUT MODULE FW 3.004 W/ BASE 1734-MB
ALLEN BRADLEY 1756-ENBT ETHERNET COMMICATIONS BRIDGE 13853 F/W 4.003
DM S WEIDMULLER WSI4/2 F TERMINAL BLOCK W/ RED LED LIGHT 15 AMP LOT OF 8
HYTROL EZLOGIC POLARIZED REFLEX ZCONTROLLER 27 VDC 032.501
RED LION CUBCB000 6 DIGIT COTER CUBCB000 3302
ALLEN BRADLEY 800H-BP6 RED HEAD PUSH BUTTON HAZARDOUS LOCATION
CROUZET MILLENIUM 3 LOGIC CONTROLLER 8 AMP 250 VAC CD12
DM SRELIANCE ELECTRIC CARBON BRUSH 419904-1BX
TRANE BAYSENS119A SEN01577 X13790884-01 PROGRAMMABLE ZSENSOR
LANDIS GYR POWERS 544-110 POWERS SYSTEM 600 CONTROL BOARD
WESTINGHOUSE 150A CIRCUIT BREAKER 600 VAC 3 POLE FDB3150
DM SWESTINGHOUSE 150A CIRCUIT BREAKER 600 VAC 3 POLE FDB3150
COPAL PD60FRB LASER POLYGON SCANNER MOTOR
VORNE DIGITAL DISPLAY GREEN LED COTER M87/77-L1-16 77/719-0-4-20-3GRX 24VDC
VORNE DIGITAL DISPLAY RED LED COTER M87/77-L1-16 77/719-0-4-20-3X 24VDC
MARSH BELLOFRAM ELECTRO-PNEUMATIC TRANSDUCER 966-710-100
AUTOMATION DIRECT H4-CTRIO COTER I/O MODULE 36 VDC
TELEMECANIQUE ALTIVAR 1/2 HP VARIABLE SPEED DRIVE 240 VAC 3Ø ATV12H037F1
RFL 98 TX/RX 102050 TX/RX MODEM ECB NO. 102053-1 REV D CIRCUIT BOARD CARD
MOTION CONTROLS PNEUMATIC CYLINDER 3" STROKE 1.5" BORE K0625150SE SL3 RA2
POWER MEASUREMENT ION 7330 POWER ENERGY METER 20-60 VDC 1 AMP 10 WATT
ORANGE RESEARCH 0-8 PSID PRESSURE GAUGE 1500 PSI MAX 1/4" NPT 1516-S1031
ASCO 1/2" SOLENOID VALVE 24 VDC 2-WAY 5-175 PSI WATER LT. OIL TL8210A107
ROSS 3/4" 2-WAY NORMALLY CLOSED POPPET VALVE 2151A5906
SENSORTRONICS LOAD CELL 65016-1K
TOLTEC PAC 1250 TRANSDUCER HOUSING 700-1255-00
AMETEK 1/2" 600 PSI GUAGE 4-1/2" FILLED GAUGE 150228LG 1931LG
AUTOMATION DIRECT ZIPLINK ZL-CM08RL120
DM S SWAGELOK B-1210-6 TUBE FITTINGS 3/4 in. X 3/4 in. LOT OF 10
DODGE SPLIT BABBITTED BEARINGS P2BBASP108 SIZE 1-1/2
HEDLAND H705B-010 FLOWMETER 3500 PSI 241 BAR MAX RACINE METER
MAC 6521B-311-PM-113DA SOLENOID VALVE W/ PME-113DABE 150 PSI 110/120 VAC
EMERSON 1/20 HP CONDENSER FAN MOTOR 42Y FRAME 1050 RPM 120V F47HXCZJ-1659
LIEBERT MP2-120C MICRO POD EMERSON NETWORK POWER UPS POWER SUPPLY
DM SDELL 5100cn BLACK TONER CARTRIDGE CT200543 9000 PAGE H5702
DIESEL LIVING W/ SELETTI MACHINE COLLECTION SET OF 3 WHITE BOWLS 10911
ABB 100 AMP TYPE ES CIRCUIT BREAKER 600 VAC 500 VDC 3 POLE UXAB 727131 R 123
ASHCROFT DURAGAUGE PRESSURE GAUGE 85-1377-AS-043-1000 8.5" FACE 1/2" REAR
MASON-NEILAN 1/2" PRESSURE REDUCING VALVE 40-100 PSI NO 33-1
ALTRONIX NAC POWER EXTENDER LOGIC BOARD AL802LGK9E
MAC 6.8 WATTS SOLENOID VALVE 150 PSI 110/120 VAC 111B-111JJ
LIEBERT REMOTE CONTACT MODULE SYSTEM 146743G1 RCM8CE 120/240 Volts AC RCM8
41) COOPER B-LINE 3" RIGID CONDUIT / PIPE CLAMP 3.5" OD. B2015PAALW/SS6
OMRON POWLI BX50XFS POWER SUPPLY 100 VAC 50/60 Hz
MARTIN 2 GROOVE PULLY 6.3" DIAMETER QD BUSHING 25V630SK
DM S AIRGUARD 20 x 25 x 2 FILTERS MX40-STD2-204 LOT OF 9
RICHARDS INDUSTRIES HM541S9999412 6580 PSIG
1DM SLUMAPRO 5NPL6 FLUORESCENT LAMP T8 U-BENT U SHAPED LAMP F32T8/841/U6
IDEAL INDUSTRIES 1" EMT 3/4" RIGID CONDUIT BENDER 74-003
DODGE 2012 HT TL TIMING BELT PULLY P28-14M-85
BROWNING N1D05F FLAT FACE IDLER
GSPEC GS-50-2 RIV ROLLER CHAIN 10 FEET 5/8" PITCH 192 LINK
IWIS ROLLER CHAIN 12B-1 60 CHAIN 3/4" PITCH 16.4 FEET
JEFFERSON 404-0320-04T M132 METAL HALIDE PULSE START BALLAST 320E 71A5892
WESTINGHOUSE HEAVY DUTY SAFETY SWITCH 30 AMP 600 VOLT HF361
JOHN ERNST OPEN ENDS BRASS FLOW THROUGH SIGHT GAUGE 3/4”NPT
WARNER ELECTRIC MODULE KEY 5371101038
SPIRAX SARCO 1" FT-15 STEAM TRAP WP 15# C80 BM 50927
ASCO 1/2" NPT SOLENOID VALVE 110/120 VAC COIL 8316G64
DM S ASCO 1/2" NPT SOLENOID VALVE 110/120 VAC COIL 8316G64
AUTOMATION CONTROLS IDRIVE BRUSHLESS DC MOTOR 24V 4.0A 0.1 HP 270 RPM 109096
DWYER 0-1000 PSIG PRESSURE TRANSMITTER 10-30 VDC 626-15-CH-P1-E5-S1
ELECTRO SENSORS LRB-2000 SPEED SWITCH 115VAC 2.5VA 11 PIN
MIDWEST PACIFIC MP-18F IMPULSE FOOT PEDAL SEALER CONTROL PANEL TIMER 18F-2
SKF OIL SEAL 5.875'' ID 7'' OD .5'' WD 58710
ALLEN BRADLEY 871TM-BH10N30-H2 INDUCTIVE PROXIMITY SENSOR 20-250V AC/DC IN
TURCK 10-30 VDC INDUCTIVE SENSOR 200 mA TYPE 1 BI5-S18-AN6X 7M
THYSSENKRUPP ELEVATOR CORP VISTA TKEVR REMOTE MONTORING IT 6300RJ1
GE FANUC 28 POINT DC I/O MICRO EXPANSION MODULE IC620EDR128A / Q2412050T
REXROTH 0750-020-00 LINEAR BALL BEARING 1-1/4 I.D
DCI DIGITAL DISPLAY PANEL METER 9400 115VAC
DCI DIGITAL DISPLAY PANEL METER 9400-15 115VAC
DCI DIGITAL DISPLAY PANEL METER 9400A-09 115VAC
DOVER FLEXO ELECTRONICS TENSION BOARD 117/60 VOLTS IN 0-10 VOLT OUT TI-4
YARWAY 1/2" CAST IRON STRAINER 250 PSI 927891-01
ASCO 1/4" SOLENOID VALVE 120 VAC 2-WAY 825 PSI WATER LT. OIL 16.7W 8320A190
SIEMENS MODEL 41 NULLMATIC PRESSURE REGULATOR 150 PSI MAX 41A30
RELCOM / FPS-RCT ISOLATED FIELDBUS POWER MODULE
AUTO EXTRA AX-31375 FRONT ROTOR 980307 FINISHED BALANCED
RELIANCE ROTARY VSS REACTOR 413204-25R
TELEMECANIQUE LED RED FLASHING STACK LIGHT 10 WATT 24 VAC 24-48 VDC XVB L4B4
BROWING 1-17/16" 2 BOLT PILLOW BLOCK BEARING VPS-223-AH
ITED ELECTRIC EXPLOSION PROOF TEMPERATURE SWITCH B121-121
TORRINGTON FAFNIR 2 BOLT FLANGE BEARING RCJT 1-11/16"
KEMKRAFT ENGINEERING STEERING WHEEL GAUGE MODEL 225-1009 SN426TI
VICTOR EQUIPMENT COMPAY 3000 PSIG OXYGEN REGULATOR SR450D
WESTINGHOUSE 100 AMP TRI-PAC DE-ION CIRCUIT BREAKER 3 POLE 600 VAC FB3100PL
TORK 7-DAY DIAL MECHANICAL TIME SWITCH IN STEEL CASE 4 POLE SINGLE THROW W400A