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。

ATOS DL0H-3A-U Solenoid Operated Hydraulic Directional Valve 24V DC

HAWE T3-1 Mechanical Pin Actuated 3/2-Way Directional Seated Valve

Pack of 10 pieces Swagelok SS-12M0-6 Stainless Steel Tube ion 12 mm Tube

PONAR 4WEH16H 72/G110NETSZ4/P4.5 Hydraulic Directional Valve 110V DC P 28 MPA

Aftermarket Replacement Control Pilot Valve Pusher 702-16-53251 for KOMATSU

Uchida Rexroth Z2S10A-14/L-33 Sandwich Type Pilot Operated Check Valve

Uchida Rexroth Z2S10 14/L-23 Sandwich Type Hydraulic Check Valve

WANERF DSG-02-3C2-LW-D24 Hydraulic Directional Spool Valve 24V DC

MUTEC # 99309 Temperature Sensor 2 x Pt100 PN40CH 594540 200 mm stem

TECHTROL FPS-JSO1RWW Horizontal Level Switch Max 10 kg 1000 mm SS316 flange

TRAFAG Picotrans 8244.77.2317 Pressure Transmitter 0...10 bar G1/8 4..20mA

Yuken DT-02-H-2290 Hydraulic Pressure Relief Valve

ASCO Series 238 SCXE238A004 2-Way NC Brass Solenoid Valve G3/4" 230V AC

CKD HO-03-215 2/2 NC Heavy Oil Solenoid Valve 3/8" 100V AC 50/60 Hz 0-1.5 Mpa

WARTSILA 118 105 024 N 3 port 1/4 in. Solenoid Valve 24V DC 11W 32 bar

ASCO Series 8262 WPX8262C080T 2/2 NC 1/4" SS High Pressure Solenoid Valve 110/50

ASCO Series 8262 WPX8262A130T 2/2 NC 1/4" SS High Pressure Solenoid Valve 110/50

CompAir 8L304-101 3/2-Way 1/2" Pilot / Pilot Pneumatic Directional Valve

Endress Hauser PMC131-A22F1A1T Pressure Transmitter 0 .. 16 bar`4..20 mA 1/2 NPT

VICKERS EATON RV5 RV5-10-S-3G-3/ Hydraulic Relief Valve

FEMA DCMV1 DCMV-1 Pressure Switch 1.5 bar

EATON 1E45P4W35S3 406AA02521A Hydraulic Motion Control Valve

HUBA Control 691.93301719W Pressure Transmitter 0..35 kg/cm2 4..20mA G1/2

HENKE SASS WOLF Type DW-LM Flow Switch Size 3/8" PN10

BOSCH DO35 0820005152 3/2 Way Pneumatic Valve 1827414015 Pilot Valve 115/60 AC

COMATROL VCB12-EN Hydraulic Coterbalance Valve 3/4" 70-250 bar

HAWE Type ADM 11 PD Pressure Reducing Valve manif mot 30...120 bar

KNAPP Micro Fluid SP32COD 40000024287 Solenoid Actuated Valve 24V DC

NORGREN Midi Star SXE9561-A80-00 13J 5/2 Solenoid Valve 24V DC Plug M/P24121C/1

KNORR Pneumatic WKV-2 I30093 3/2-Way Pneumatic Valve M14X1.5

HYDAC Drymicron filter BD100G2W20 BD100 Filter Dryer

Rexroth 5630182100 4/3 G1/8 Manual Closed Center Pneumatic Directional Valve

LEGRIS 4202 Pneumatic Operated Axial Valve 2 Way NC G1/2" P/N 4202 15 21 20

BARKSDALE Series 9020 9021-M-A-D Directional Control Valve 1/4 NPT Closed Center

TRAFAG 900.2377.903 Pressure Switch 0 ... 6 bar / 0.6 Mpa G1/4 IP65 Pmax 12 bar

ASCO 8210B26 2-Way NC Brass Piston Solenoid Valve 3/4" 120/110V AC 300 psi

Bosch Rexroth Oil Control 0540 Pilot Assisted Over Centre Valve

SMC VS4130-02 5/2-Way Pneumatic Directional Solenoid Valve 1/4" AC100V AC110V

REXROTH SC-700 R431008429 "D" Pilotair Valve 1/4 NPT PD-040032-09398

PARKER 689B Series 689B-8-1/4D2 Manual Hydraulic Directional Control Valve

PARKER PGI PR11S8-XX Pressure Relieving Tool PRT

DYNISCO IDA354-3.5C-10V-S78B-1 Pressure Transmitter 414 bar 0-10V out

KOB NSP series NSP-KW04TPK Ball form TPK cable Liquid Level Switch

KSR Kuebler ERV-3/8"-VU-L 72/12-B40A Submersible Bilge Level Switch IP68

Rexroth 3722250220 3/2 NC ND4 Solenoid Valve 24V DC subplate mtg. 372 225 022 0

FESTO CPE-24-SA 665149 5/2-Way G1/4 24V DC Pneumatic Valve Moting Type

IMI NORGREN X3363822 5/3 Way CC 1/4" Spring Return Pneumatic Hand Lever Valve

R901109949 Rexroth Hydraulic Spool Valve 047729038535000 Manif R934001812

BURKERT Typ 0330 00041124 FKM Brass Pivoted Armature Solenoid Valve G1/4 230V AC

S Hydraulics PBDB LWN Pilot Operated Pressure Reducing Valve with manif ECU

M010 ELECTRICAL CONTACT Pressure Gauge 250 kgf/cm2

EATON CVI25X150 Industrial Slip-In Cartridge Valve 25mm Cover Size

BURKERT Type 0124 067160 3/2 Solenoid Valve 1/4" 24V DC for aggressive media

WALKER Filtration 2 stage Compressed Air Filter 3/8"

FAVELLE FAVCO AHFX-0005-5000 Pilot-Operated Hydraulic Directional Valve

Asco WPSCE210D95VMO Solenoid Valve 2/2 Way NC G3/4" 48/60 AC W Manual Operator

Domnick Hter 040AAR Replacement Filter Element 0.01 Micron

NORGREN Olympian-Plus F64H-NND-AD0 Puraire High-Efficiency Oil Removal Filter

Wilkerson M26-03-FM0 Coalescing Filter 3/8" NPT Automatic Drain

R930003498 Rexroth Hydraulic Coterbalance Valve VBSO-SE-30-PL-FC1-12-1:4-35

IMI Norgren Super X X4 2855 00 5/2-Way Sol / Spring G1/4 Valve 24V DC X4285500

ASCO SC8551A001MS 3/2 - 5/2 Way NAMUR Solenoid Valve 24V DC 1/4" NPT

Norgren V14 Nugget Series V14B517A-E313A 5/2-Way Pneumatic Solenoid Valve 24V DC

Norgren V09 Nugget V096516R-E213A 5/2-Way Pneumatic Solenoid Valve 24V DC

MOORE Products MODEL 61F Pneumatic Booster Relay

Gems Sensors LS-270 P/N 43980 Vertical Moting Single Point Bilge Level Switch

Gems Sensors LS-270 P/N 43982 Vertical Moting Single Point Bilge Level Switch

PARKER PVN3-5150-53B 5/2-Way 1/4" Pneumatic Solenoid Valve 120/60 AC 8 bar

R901186443 Rexroth 4WE6JB62/EG24N9K4 Hydraulic Directional Valve 24V DC

Parker 8F-SWB8L-RT-V-SS Ball Valve Process 2500 Psig 2-Way Inline 1/2" NPTF

ASCO SCB320A172VMO 3-Way Solenoid Valve 1/4" 48/50 AC Push Button Manual Overide

Burkert 6281EV A 13.0 NBR MS 00221846 2/2 NC G1/2 Solenoid Valve 230V AC 16 bar

Fairchild Model 20 Cat. No. 20822 Pneumatic Precision Booster 1:2 ratio

Precision Automation  Robotics BPA3052 Sub-base Manif Control Valve

HAWE Hydraulik HZ 3-2 Pressure Operated 3/2-Way NO Directional Seated Valve

BARKSDALE 425H3-08 Pressure Transducer 0-500 psi 4-20mA 425H308 1/4 NPTM

Precision Automation  Robotics 88884 Sub-base Manif Control Valve

Gems Sensors LS-240-3 NAVAL P/N 43910 IC/RI-U Single Point Bilge Level Switch

FESTO 197126 MDH-5/3E-D-1-M12-C 5/3 COE ISO Size 1 SOLENOID VALVE 24V DC

QUINCY 120496-5 Solenoid Valve 1/4" 120/60 AC Parker # 04F30O2106ACF4C05J

HONSBERG UM3K Serie UM3K-010GM050 Paddle Type Flow Switch G3/8" 3.5-5 LPM

COAX MK 10 NO COAXIAL Solenoid Valve 1/2" NPT 0-16 bar 24V DC Air/ Nitrogen

Parker Lucifer 121K2423 2/2 NC 1/8" Oil Solenoid Valve 230V 50 Hz 19W 30 bar

Parker 121K2423 2/2 NC 1/8" Oil Solenoid Valve 230V AC 19W 30 bar GEOX 39001/05

ASCO 8210 series 2/2 NC Solenoid Valve 3/4" 110V AC M/O 1762825-01

ODE 21W3KB190 2/2 NC Solenoid Valve G3/4 24V DC

Ingersoll Rand 31DE138A / Johnson V46AA-1 Water Regulating Valve 3/8 in.

SMC VSA series VSA3145-06 3-Way Air Pilot Pneumatic Control Valve 3/4"

FANTINI COSMI AD52 Level Switch 1-1/4" 10 bar IP54

TURIAN GD 38 AP Stainless Steel High Pressure Rotary Joint 3/8" BSPP 400 bar

IMI Norgren Buschjost Cat No 3998 Replacement Solenoid Coil 230V 40-60 Hz 45VA

IMI Norgren Buschjost Cat No 3903 Replacement Solenoid Coil 220V 40-60 Hz 45VA

Parker Lucifer 495905E5 Explosion Proof ATEX Solenoid Coil 115V 50 Hz 115mA

Bank of 12 pieces SMC SY114A-5MOZ Solenoid Valve with Manif

Asco Part No. 8222A64 Steam Solenoid Valve 3/8" 120/60 AC 1-80 psi

Jumo ATH-1 603021/01 Thermostat / Temperature Switch 0...100 deg. C

TRAFAG Type 8100 Temperature Transmitter 0 ... 100° C / 4..20mA / 10 .. 34V DC

Parker 322K4606 2-Way NO 3/4" General Purpose Solenoid Valve H111P3 120/60 AC

J.D.NEUHAUS Art. Nr 11363 3/2-Way Plger/Spring Pnematic Dir. Control Valve

INGERSOLL RAND 1411 4 Emergency Stop Valve 3/4"

ASCO EFX B 262C202 3 Way Stainless Steel Solenoid Valve 1/4" ATEX 115/50 AC

ASCO SC8551A002MS 3/2-5/2 Way 24V DC Solenoid Operated NAMUR Valve 1/4"

TMC Dial Type 5/2-Way Manual Pneumatic Directional Control Valve

NORGREN K71FA00KS1KB0 5/2-Way 1/2" Manual Knob Pneumatic Dir. Control Valve

Parker Lucifer 341L9534 481865A5 3/2 5/2-Way Namur Solenoid Valve 110V AC 50Hz

Parker Lucifer 341L9534 481865J3 3/2 5/2-Way Namur Solenoid Valve 230V 60Hz

ASCO 8321G1 Pilot-Operated Quick Exhaust Solenoid Valve 1/4" 120/60 AC

ASCO EF8320G172 3-Way General Service Solenoid Valve 120/60AC 1/4"

HAWE TQ 4P-A 4 Hydraulic Flow Divider Spool Valve Manif moted

DELTROL EF40S Hydraulic Flow Control Valve 1" NPTF 55 GPM 5000 PSI MAX

NORGREN M/6020/25 compact pneumatic cylinder 20 mm bore X 25 mm stroke M602025

Parker Kuroda AS2306-02-220-15CK 3/2 way Solenoid Valve 1/4" AC220V -0.1~1 MPa

Siebe Pneumatics 8L304-101 3/2-Way 1/2" Air Pilot Valve

Burkert Type 2000 145846 2-Way Pneumatic Angle Seat Valve DN25 1"

BARKSDALE 423X-13 Explosion Proof Transducer 0-3000 psi Voltage Output 5.5 V DC

Jumo Type AMF-13 Thermostat / Temperature Switch 10...80 deg. C G1/2" X 8" L

Ingersoll Rand IRDP19 88343637 Compressed Air Filter 1/4"

Ingersoll Rand IRGP19 88342977 Compressed Air Filter 1/4"

VALCOM Model 27-AIC-03-A-002-E-V-1-C- Low Pressure Transmitter 0-1300 mbar ABS

NORGREN R43 Brass Regulator R43-406-NNLG for Water or Compressed Air 1/2"

GEMS Sensors LS-12334 Flooding Alarm Bilge Low Level Float Switch

Parker Rectus Series 38 Quick Coupler 38KBAW26MPN  38SFIW26MXN G3/4"

JAKSA Model M24K 2-Way NC Solenoid Valve G1/2 ATEX Coil 24V AC DC 12 bar

ASCO Red-Hat 8320A010 3-Way 1/4" General Purpose Solenoid Valve 1/4 120/60 AC

ROSS Controls D1523C5002 L-O-X Pneumatic Lock Out Exhaust Valve 3/4" 20 bar

ASCO Joucomatic 540 54090001 5/2 Pneumatic Spool Valve Sub-Base Moted

ASCO Joucomatic 540 54000048 5/2 Pneumatic Spool Valve Sub-Base Moted

ASCO Joucomatic 54190017 ISO Size1 5/2 Way Pneumatic Directional Valve 24V DC 5W

SMC 30- VFS5110-5DZ-04F Pneumatic Solenoid Valve 5/2-Way 1/2" 24V DC 142 PSI

ASCO EF8210G002 2-Way NC 1/2" Explosionproof Solenoid 120/60 AC

ACL E107EB18 40B 2/2 NC solenoid Valve G3/4 Coil 40B 24V 50/60 Hz