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。
MAC 120V 6.8 WATTS 150 PSI SOLENOID VALVE 132B-111JD
NATIONAL CARBON MOTOR BRUSH 9651659
HELWIG 2-1/4" X 1-1/2" X 5/8" CARBON BRUSH 10-156221
TELEMECANIQUE 24V INDUCTIVE PROXIMITY SENSOR XS1N08PA349
PHD 1" STROKE X 3/4" BORE PNEUMATIC CYLINDER AVCF-3/4X1
MAC 12V SOLENOID VALVE PMC-611NA
INA INNER RING IR17X22X13
TORNOS BECHLER CIRCUIT BOARD 122137
KEBCO 95VDC 1" BORE CLUTCH 08-03-300-0911
BIMBA 1-1/16" BORE X 1" STROKE PNEUMATIC CYLINDER CF-091-DXP
MICRO-SWITCH 15A 480V SPDT PIN PLGER LIMIT SWITCH BZ-R20
EFECTOR TEMPERATRUE SENSOR TRKDBR12MFRKGUSVTR2432 TR2432
PROMINENT FLUID CONTROL PRESSURE RELIEF VALVE 1006863
ALLEN-BRADLEY SOLID STATE OVERLOAD RELAY 40751-468-27
KING ENGINEERING POLISHER CARTRIDGE A31-1-5
GATES HI-POWER II V-BELT B96 / 9003-2096
PARKER SKINNER COIL V5-7724-F24
WESTINGHOUSE 0.5A 2.4KV FUSE 677C592G02 CLE-PT
LMI MILTON ROY 250PSI GHP .58 METERING PUMP P141-352SI
OF (10) ECON 1AMP 250V TIME DELAY FUSES ECNR-1
TIGEAR-2 REDUCER BOLT ON BASE 17ZBASEWP
APV #3 STD SOLID PLASTIC ROTOR/PUMP FINS M03HP385221
ILSCO 3-POLE 310A 600V POWER DISTRIBUTION BLOCK PDB-112-350-3
BENTLY NEVADA PROXIMITY PROBE TRANSDUCER 330171-00-12-10-02-05
GENERANT 1/4" NPT CHECK VALVE ICY-2014SS-S-1
DODGE TIGEAR 2 15:1 GEAR REDUCER 23Q15R14
EMERSON SOLA 5A 24VDC POWER SUPPLY SDN-5-24-100P
RCB 50MM X 80MM X 16MM BALL BEARING 6010-ZZ-C3
NUMATICS DUAL REGULATOR VALVE I23RQ100JP00000
PHD CYLINDER AVF11/8X21/2-P-E
BROWNING 1-1/4" BORE CLUTCH BUSHING KIT 200BU104
FENNER DRIVES 100' EAGLE ORANGE 85 POLYURETHANE BELTING 1032039
GATES SUPER HC POWERBAND BELT 8V1320
DOUGLAS RANDALL 15A 120V PROPORTIONAL CONTROLLER R15A
JUSTRITE VENT DRUM 8-100
ROSS 3/8" END PLATE ASSEMBLY 326K86
ASHCROFT 4.5" 0-100PSI 1/4" PRESSURE GAUGE Q-8603 250-2362-A
OMRON 12-24V PHOTOELECTRIC SWITCH E3S-DS10E4
MAC 120V 1/8" SOLENOID VALVE 111B-111JC
GENERAL ELECTRIC RELAY MODULE 193X703ADG04
DODGE TIGEAR 60:1 SPEED REDUCER 20Q60L56
DODGE 3-BOLT FLANGE BEARING SC 1-7/16
CDC DISC DRIVE CONTROLLER 75891120-E
SIEMENS OPERATOR HANDLE WITH COVER 8UC6-220-3BD
GRAINGER 1" SS CAM-LOK MALE FITTING 3LW93A MIL-A-A-59326D
ECCI SHAFT ENCODER PU868-60/5V
THOMASBETTS 1-1/4" STRAIGHT BULLET CONDUIT FITTINGS LT125P
ROSS VALVE BODY SERVICE KIT 615K77
RBC HEIM ROD END BEARING HFX8G
MAC 24V 1/8" PORTS 3-WAY SOLENOID VALVE 224B-521CAAA
ABB PROCESS PANEL 220 3BSC690099R2
PYROMATION 12-POSITION SELECTOR SWITCH
SPORLAN 5/8" MOISTURE AND LIQUID INDICATOR SA-K145
HUMPHREY 120V SOLENOID VALVE M31039-120
GE GENERAL ELECTRIC 110V SOLENOID COIL 22D135G2
LOT OF (10) BUSSMAN 1A 250VAC TIME DELAY FUSES FNM-1
HONEYWELL MICRO-SWITCH LIMIT SWITCH TERMINAL BLOCK 18PA1
LOT OF (5) SSP INSTRUMENTATION 3/8" TUBE X 1/4"MNPT SS R TEES ISSD6MRT4
GROVE GEAR IRONMAN SPEED REDUCER GR8150196.00 GR-BMQ815-15-R-56
TELEMECANIQUE 22MM 3-POSITION MAINTAINED SELECTOR KNOB ZB4BD27
EAGLE MACHINERY PREC. SERVO DRIVER EMSS-7007
HOSE MASTER 1/2" I.D. 6-1/2" FLEXIBLE METAL HOSE G050CM065
LOT OF (14) O-Z GEDNEY EGS 3/4" HEAVY DUTY GROD CLAMPS G-51G
INA NEEDLE ROLLER BEARING NA4910-XL
ENERPAC SERVICE PARTS KIT DA4832040KR
AMERITROL FLOW SWITCH 120VAC 10 RELAY 7607277273
DODGE ADAPTER SLEEVE H315-SNW-208
MARTIN 25 TOOTH BEARING IDLER SPROCKET 50BB25H-3/4
CLYDE BERGEMANN D5 VALVE FLANGE KIT W032832-15-0/1 S0043302
LOT OF 7 SWAGELOK 1/4" TUBE X 3/8" FNPT BRASS FITTINGS B-400-7-6
ALPHA WITTENSTEIN 10:1 GEAR REDUCER LP-090-MO1-10-111-000
INA 19MM X 27MM X 16MM NEEDLE ROLLER BEARING NK19/16
CKD PNEUMATIC CYLINDER SCA2-CA40N50
GIBRALTAR KNOB HANDLE INDEXING PLGER 88074687
THOMAS BETTS PUTTY SEALING COMPOD SC65 2009460
MAC 24V 2.5 WATTS 150 PSI SOLENOID VALVE 132B-593BA
OMRON PLC POWER SUPPLY CQM1-PA203
1 OMRON PLC POWER SUPPLY CQM1-PA203
OKUMA SERVO MODULE FUB-P4M4
BOSTON IRONMAN 25:1 RATIO GEAR REDUCER GR-BM-815-25-L-56 GR8150078.00
EATON SER.B1 12-240V 16FT POLARIZED REFLEX SENSOR 1451E-6504
SMC 2" STROKE PNEUMATIC CYLINDER NCGUA25-0200
LOT OF (3) SIBA 400A 1100V SQB2 FUSE-LINKS 2003428.400
FEDERAL PIONEER HORIZON 3P 60A BREAKER CE3060B
TOSHIBA EX SERIES PROGRAMMABLE CONTROLLER ROM MODULE RM66
SEALMASTER 3/4" FEMALE ROD END TRL-6
OMRON 120V 60 MINUTE SYNCHRONOUS MOTOR TIMER STP-MNR-AH-UA
TSUBAKI 10' 0.312 X 0.312 X 0.06 ROLLER CHAIN C2040NPRB
SMC 1/4" 150 PSI PNEUMATIC FILTER AF20-N02C-CRZ-A
IFM 1/4" 36VDC 1088 PSI ELECTRONIC PRESSURE MONITOR PN7204 IP65
ASCO 3/8" 110/120V 2W SOLENOID VALVE 8263G206V
GE GENERAL ELECTRIC 4PT CURRENT INPUT ANALOG MODULE IC693ALG221G
FLEX-HOSE FLEXZORBER 1" 25MM NNDFU RUBBER HOSE CONNECTOR
FSI ITC PNEUMATIC PCB BOARD 290128-200 290128-400
IDEAS IN MOTION 9" STROKE PNEUMATIC CYLINDER M102-266
KOYO BALL BEARING 7008C
JAMESBURY METSO QUADRA-POWR X ACTUATOR VALVE QPX1C/K15
DODGE 6DG-H COVER ASSEMBLY GRID COUPLING 006254
GE FANUC SOCKET LAMP ASSEMBLY 44A219678G001
PARKER 2000 PSI HYDRAULIC CYLINDER 1.50CSB3LLTS19AC1.500
HITACHI 10' ROLLER CHAIN #40RIV
BOSTON GEAR 40:1 RATIO SPEED REDUCER F72440B5G
MASSA 12-24V ULTRASONIC SENSOR M-320/150
AMPHENOL 37-PIN CIRCULAR RECEPTACLE MS3102A28-21S
ROSS 120V 5-WAY 2P SOLENOID VALVE W6077B2401
GE TERMINAL BOARD 531X305NTBANG1
BASS 12/24V CCTV CAMERA BECC143
REXROTH 110/120V COIL HYDRAULIC CONTROL VALVE 4WE10E31/CW110N9Z45
7 PANDUIT TYPE L OR C RACEWAY OUTSIDE CORNERS OCF5IW-E
AMERICAN INDUSTRIAL HEAT EXCHANGER AB-702-C6-TP
GATES 15MM WIDTH 80 TEETH POWER GRIP TIMING BELT 4005M15
GE FANUC 10 SLOT MODULE EXPANSION BASEPLATE E157515
OMRON 2M FIBER OPTIC CABLE E32-T61-S
MAC 120V 4-WAY 1/8" SOLENOID VALVE 45A-AA2-DAAJ-1KD
MILLER OUTPUT TERMINAL ASSEMBLY 182496
BANNER 30V FIBER OPTIC SENSOR D12SP6FPHQ
DANIEL WOODHEAD 6FT GRODING ASSEMBLY 141006
JEFFERSON ELECTRIC 350VA MACHINE TOOL TRANSFORMER 636-1181
GROZ 1/4" NPT PIPE ADAPTER 36JN95
OF (2) NOS THOMAS BETTS 1/2" STAR TECK XP CABLE CONNECTOR STX050-464
BIMBA 3/4" BORE X .5" STROKE SPRING RETURN AIR CYLINDER 040.5
DODGE TIGEAR 1.11HP 1750RPM 20:1 GEAR REDUCER Q200B020M056L1
COLE PARMER 120V LEVEL CONTROLLER 07200-00
NVENT HOFFMAN STAINLESS VENT DRAIN AVDR4SSA
POTTER BRUMFIELD 25A 277V 1-POLE CIRCUIT BREAKER W91-X112-25
GENUINE SKF DEEP GROOVE BALL BEARING 6316-2RS1
SIEMENS SIRIUS 3R CIRCUIT BREAKER 3RV1011-0KA10
GORDO 90-280V 25A 280V SOLID STATE RELAY G280A25
ASCO 1110/120V 1/4" 3-WAY SOLENOID VALVE 8320-60
THOR TECHNOLOGIES 100-150 HP POWER DRIVER BOARD 1700-9999-00156
WIAKI LIQUID FILLED PRESSURE GAUGE 52941041
MAC 120V 150 PSI SOLENOID VALVE 6211C-112-PM-114DA
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