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 56 Series 56C-12-501JC 3/2-Way NC 3/8" Pneumatic Solenoid Valve 24V DC

Wandfluh BM4D42-M33 Hydraulic Solenoid Spool Dir. Cntrl Valve 115 V AC

TRAFAG NPN 8264 Picotrans Pressure Transmitter 8264.78.2510 0..10 bar flanged

TRAFAG NPN 8264 Picotrans Pressure Transmitter 8264.78.2310 0...10 bar flanged

Telemecanique XMLB XMLB020A2S13 Nautilius Pressure Switch 20 bar

ASCO 8321G003 3/2 Normally Open Quick Exhaust Solenoid Valve 1/4" NPT 120/60 AC

Whitey 133 Series Model 133 SR Pneumatic Spring Return Actuator 200 psi max

FLUCON Type 500 FC I/P Pressure Transducer In 4-20mA Out 3-15 psi Sup 18-100 psi

SKF DSA1-S12W-1L1A Pressure Switch Pn 12 bar P. Max 45 bar

ASCO Joucomatic 32000002 3/2-Way G1/8" Air Pilot Valve with head XM2-JM012

SMC VS3135-04 3/2 Way NC 1/2" Solenoid Valve 100V AC 50/60 Hz 1.0 Mpa

SEITZ Type 1538 Solenoid Valve P/N 114.115.00 3/2-Way 1/4" 24V DC 0..32 bar

Rotronic Hygroflex HF120-FB1X Duct Humidity Sensor 2-Wire 4..20mA 300 mm Probe

Plast-O-Matic EAST4V6W11-120/60-PV Polyproplene Solenoid Valve 1/2" 120/60 AC

TRAFAG NPN 8264 Picotrans 8264.77.2518 0-6 bar Presure Transmitter flange conn

ASCO 8320P184 3-Way Electronically Enhanced Solenoid Valve 1/4" 100-240 V AC

NORGREN 20AG Series 20AG-X4G-PJ100 High Flow Air Regulator G1/2 0.7..17 bar

Caterpillar 172-8660 Liquid Level Switch GP Hydraulic Tank

NORGREN M/6025/25 compact pneumatic cylinder 25 mm bore X 25 mm stroke M602525

ASCO 8210 Series SCE210C035 2-Way Normally Open Solenoid Valve 3/4" 230/50 AC

WANDFLUH BE4Z40a-Z501 Mini Spool Hydraulic Directional Valve 24V DC 315 bar

WANDFLUH PI35MV Proportional Solenoid 24V DC stroke 2 mm

Parker 7321BCN00 2-Way NC G3/4" Solenoid Valve 230V AC 50-60 Hz

FEMA Series TXB TXB-150 Rod Thermostat 10 to 50°C Max 110°C TXB150

FESTO 192031 SDE1-D10-G2-H18-C-P2-M8 Digital Pressure Switch 0 .. 10 bar

ASCO Red-Hat EF8210G3MO 2-Way NC Solenoid Valve 3/4" 120/60 AC with M.O.

AAA Products SO2 5/2 Way 1/4" Air / Gas Directional Solenoid Valve 24V DC

GSR A75451002.012XX 3 Way G1/4 Solenoid Valve 24V DC DC 0-9 bar

JAKSA B27S High Pressure Solenoid Valve 2/2 NC G1/2 70 bar ATEX coil 24V AC/DC

ASCO Joucomatic 54090001 Spool Valve  18990001 Pilot Valve  43004166 24V DC

AZBIL NSV Series NSV-204 RELIEF VALVE Rc 1/2" 0.02 ~ 0.8 Mpa

SMC VP7-8-FHG-D-3Z ISO Size 2 5/3-Way CC Solenoid Valve 24V DC

PARKER PVN Series NPVN3-5150-49B 5/2 Way 1/4" NAMUR Solenoid Valve 24V DC

FEMA Type TAM-150 301 Temperature Switch / Cappillary Thermostat 10 to 50°C

CKD Valve MHB-25-25 2-Way NC 1" Electric Actuated Ball Valve 100/60 AC

LIEBHERR 511432714 Hydraulic Directional Control Valve 24V DC 350 bar

PARKER 708N3 708N3-6000-496265B7 2-Way NC 3/4" General Purpose Valve 240/60 AC

ASCO 8264D5 Liquid CO2 Service Solenoid Valve 1/8" 24V DC

BAUMER Type E923 Flush Diaphragm Pressure Transmitter 4 bar 4-20mA 11-40V dc

SMC Series 7120 SS5Y7-X6Q306 Bank of 4 Valve 5/2-Way Solenoid Valve 220V AC 6mm

ASCO 8210 Series SCE210C035 2-Way Normally Open Solenoid Valve 3/4" 48/60 AC

Parker Lucifer E321H13 2/2 NC G3/8" 24V DC General Purpose Solenoid Valve

FESTO CPV 14 valve CPV14-M1H-5LS-1/8 161360 x 2 CPV14-M1H-2X3-GLS-1/8 161362

Burkert Type 2002 140369 2-Way Normally Open Pneumatic Angle Seat Valve G1/2

Fine Tek EC1510-0X2G-BQ-D Pressure Level Transmitter 0 - 0.2 bar 1/2" PT 4..20mA

MAC Model 257B-114JC 3/2 NC Pneumatic Solenoid Valve 120/60AC 24V DC VAC-150 psi

CKD FS2-02-4 AC200V 4-Way 5/2-Way 1/4" Single Solenoid Valve AC 200 0-1 Mpa

HAWE Hydraulik MVG Series MVG 14 HR Pressure Limiting Valve G1/4 MVG14HR

HERION P/n 0891900 Temperature Switch / Thermostat Range 160 - 280 deg.C

Burkert 0331 00041229 3/2 Way Bolt Moted G1/4 Solenoid Valve 230V AC

HAWE Hydraulik MVCS 66 CR Pressure Limiting Valve G3/4 MVCS66R 500 bar

DELTA Controls Model 387 A3872SECP6J Pressure Transmitter 0-100 psi

NORGREN SXE-9773-160-00 ISO 1 5/3-Way COE Solenoid Valve 10 bar TM1502 60V 24V-

ASCO Numatics Series 531 SCG531C002MS 3/2 5/2 Way NAMUR Solenoid Valve 24V DC

SI0550 IFM Electronic SID10ADBFPKG/US-100 Flow Monitor

IFM ELECTRONIC SH0500 FLOW MONITOR SIR12ADBXPKG/US-100

Parker Lucifer VE-130-BR.1 2 Way NC Manif Moted Solenoid Valve 230/60 ZB14

SAUTER SDU101F003 Fine Differential Pressure Transducer 0..400 Mpa / 0..4 mbar

TRAFAG Series 8242 8242.83.2017 Engine Pressure Transmitter 0 to 100 bar G1/4

TRAFAG 8242.76.2017 Engine Pressure Transmitter 0 to 400 kPa-G 4..20mA 9..32V

Danfoss MBS 1700 060G6105 Pressure transmitter 0 - 10 bar 4..20mA 24V DC G1/2"

OMAL VIP Pneumatic Operated Axial Valve 2/2 NC G1/2" 24V 50 Hz

TRAFAG Type 8244.77.2310 Compact Block Pressure Transmitter 0..6 kg/cm2 flange

Barthel G01204734 D43231001.702 2/2 NC Solenoid Valve G1/2 230V 50-60 Hz 16 bar

TRAFAG Picotrans 8244.78.2317 Compact Block Pressure Transmitter 0...10 bar G1/8

GEFRAN TPS-2-V-B05C-T 2130X000X00 Pressure Transducer 500 bar 3mV/V

TRAFAG NPN 8264 Picotrans Pressure Transmitter 8264.78.2518 0...10 bar G1/8

HYDAC Pressure Sensor 904975 HDA 3744-A-060-000 60 bar G1/4 4..20mA

SENSUS MA2100 Single Jet Water Meter 37029923

Rexroth 5631260100 3/2-Way 1/4" NW7 Hand Lever Pneumatic Directional Valve

Wandfluh NG3 MINI BS4130-XX-S1533 Hydraulic Solenoid Spool Valve 24V DC 250 bar

LANDIS  GYR LDU11.523A27 Automatic safety shut-off valve test device

FESTO CPV10 Valve Terminal 161415 x 2 161416 x 2 18253 Electrical Interface

TRAFAG Picotrans 8244.77.2318 Compact Block Pressure Transmitter 0..6 bar G1/8

HWFB MK10-1-14-16 Coaxial solenoid valve 2/2-Way NC G1/4 16 bar 230V AC

Jumo ATH-1 Series 603021/01 NO/NC 10 A Capillary Thermostat 50...20 deg.C

DOERING 54H2371080PS Pneumatic Pilot Pressure Operated Hydraulic Cartridge Valve

ASCO SCG238A050 2 Way NC 1" BSP Water Solenoid Valve 24V DC 0-10 bar

IMI BUSCHJOST 8240200.9186 2/2 Way G1/2 Solenoid Valve ATEX 24V DC 0.1-16 bar

AUTRONICA GV-1 Thermocouple Amplifier / signal converter for GF1

SMC IR412-04 Precision Air Regulator 1/2" 0.1 ` 0.7 Mpa Max 1.0 Mpa

TRAFAG 8264.77.2310 PICOTRANS Pressure Transmitter 0...6 bar Manif moting

HYDAC Flutec screw-in cartridge spool valve 3-Way 2 posn. 196V DC

SEITZ Type L Air Solenoid Valve P/n 108.681.00 3/2-Way NC 1/4" 24V DC 0..40 bar

BEKOMAT BM12 2000018 Condensate Automatic Drain Valve 230V AC 16 bar

GSR Ventiltechnik Type 63 6323/1104/8105 2-Way NO Pneumatic Angle Seat Valve 1"

TRAFAG Navitrag 8202.76.2211 Pressure Transmitter 0..4 bar G1/2 4..20mA

NISCON Nihon Seiki BN-7M31-8G 3/2-Way 1/4" Direct Acting Solenoid Valv AC100V

PARKER P2LDX594ESADDM49 VIKING XTREME 5/2-Way 1/2" Pneumatic Solenoid Valve

PARKER Finite Filter 10CWC11-035 X 4 High Pressure Coalescer Filter  of 4 pcs

ASCO E290A028 Angle Seat Piston Valve Normally Open DN25 1"

R417000297 AVENTICS Spare Part Kit For R417000184 Linear Positioner R417 000 297

BESTOBELL STEAM Model GM3 1" FSW Delta Element Steam Trap

Hydraulic Joystick Valve PCL4 PCL4-02-U-S-H3 B-M3 PCL402USH3BM3 9/16-18F-2B

HAWE TQ 43-A 5 Hydraulic Flow Divider Spool Valve G 3/4" to G1/2" 350 bar

Rexroth VE300 060830159 Fan Module 0 608 830 159 Ventilatormodul 24V DC 0.75 A

Rexroth 0821300901 0821303400 0821300920 0821302401 Air Prepartion  Control

WATTS 215M1-X-Z9 Low Pressure Regulator 1/4" 215M1XZ9 LP Regulator

EATON VICKERS CVCS 25 N B29 10 SLIP IN CARTRIDGE VALVE COVER

BUCHER Hydraulics SRDB-ABZ-6-1 Size 6 Stacking Sandwich Throttle Check Valve

R30-08-000 INGERSOLL RAND Air Pressure Regulator 1 in. NPT 300 psi R3008000

NAKAKITA SEISAKUSHO NS953 Gauge Saver Set at 0.712 kg/cm2 Max 10 kg/cm2

NAKAKITA SEISAKUSHO NS953 Gauge Saver Set at 1.43 kg/cm2 Max 10 kg/cm2

NAKAKITA SEISAKUSHO NS953 Gauge Saver Set at 2.477 kg/cm2 Max 10 kg/cm2

NAKAKITA SEISAKUSHO NS953 Gauge Saver Set at 0.378 kg/cm2 Max 10 kg/cm2

NAKAKITA SEISAKUSHO NS953 Gauge Saver Set at 0.591 kg/cm2 Max 10 kg/cm2

NAKAKITA SEISAKUSHO NS953 Gauge Saver Set at 0.545 kg/cm2 Max 10 kg/cm2

NAKAKITA SEISAKUSHO NS953 Gauge Saver Set at 0.695 kg/cm2 Max 10 kg/cm2

NAKAKITA SEISAKUSHO NS953 Gauge Saver Set at 0.764 kg/cm2 Max 10 kg/cm2

VALUE CV-122B CI body Bronze Plate Non-Return Wafer Check Valve Size 3" DN80

Kkle 6186GF01-KM Pressure Safety Valve 1-1/4" NPT Set @ 150 psi 1602 SCFM

ASCO E290A386 2/2 NC G1" Pressure Actuated Bronze Angle Seat Valve 25 mm

R900915095 Rexroth 4WE6D62/OFEW230N9K4 Hydraulic Directional Control Valve 230V

ALEMITE® 5612-2 Compressed Air Filter 3/4 in NPTF 270 cfm 250 psi / 17 bar

YUKEN DMG-03-2B2-50 Manual Hydraulic Directional Valve

Parker L606 series L606G08W/E Compressed Air Lubricator 1" NPT

FAVELLE FAVCO AHFX-0010-7000 Hydraulic Valve

KEYSTF79E-006 Double Acting Pneumatic Actuator

ASCO Red-Hat 8210G004 E 2-Way NC 1" NPT General Service Solenoid Valve 120/60 AC

R983037934 Rexroth DBDS 6 P1X/050 Hydraulic Pressure Relief Valve

Norgren Olympian Plus F68G-NNN-AR3 Air Filter without yoke 40 m Auto-Drain

TOKIMEC DG4V-3-2N-M-P2-V-7-54 Hydraulic Directional Valve A200 200V AC

Norgren F17 Compressed Air Filter F17-800-A3DA 1" Metal Bowl Auto Drain

HYDAC RF Series RF 110G A1.1 Tank Moted Return Line Hydraulic Filter G1"

R900911762 Rexroth 4WE6J62/EW230N9K4 Hydraulic Directional Valve 230V AC 350 bar

TOKIMEC DG4V-3-0C-M-P2-V-7-52 Hydraulic Directional Valve A200 200V AC

Parker B743000XXA 5/2 Way 1/2" Dual Air-Pilot Pneumatic Directional Valve

HYDROSEAL 14BE2M0V00/C0 WCB SAFETY RELIEF VALVE 3/4" 150 psi 622 SCFM

HYDROSEAL 3CRV0LN WCB SAFETY RELIEF VALVE 3/4" 2400 PSI

HYDROSEAL 3FXV00N/H0 WCB SAFETY RELIEF VALVE 3/4" 3000 psi

REXROTH R412006260 R412006200 R412006037 Air Preparation  Control it

Rexroth Wabco 3630571000 3/2-way Idle Roller Lever Directional Control Valve