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。

Square D LA LA36400 400 amp 3 pole Breaker RELABELED GREY FLAWED

 Square D LA LA36400 400 amp 3 pole Breaker RELABELED GREY FLAWED

Square D KH KH36200 200 amp 3 pole 600V Circuit Breaker RELABELED GRAY

HONEYWELL 51304907-200 SPC11 I/O FIRE ALARM PADDLE BOARD CARD | 51304907200

SECURITY ENGINEERING 3929 DOUBLE DOOR ELECTROMAGNETIC LOCK 12VDC .2 AMPS

 METEOR RS6R-40-308-120-TRC-40-WHT CAN LIGHT

Square D JDL JDL26225 2 Pole 225 Amp 600V Powerpact Circuit Breaker

Cutler Hammer AN16KN0 Nema Size 3 Contactor Series A1 90 Amp 600V 480V/60Hz AK

SIEMENS 549-629 MODEL 1210 EF/PXM/HOA/ENET/FLN POWER MEC AK

 STANDARD MICROSYSTEMS CORP D250100124 ARCNET-PC BOARD REV. E 600WS ASSY

 JDK CONTROLS INC. D50201 6911-2054 01167 | FIRE ALARM ENCODER | 69112054

SQUARE D 8536RE3537G6 SIZE 2 600V 3 PHASE MOTOR STARTER 120V COIL 010

ITE Siemens CED CED63B090 3 Pole 90 Amp 600V Circuit Breaker  Take Out

National Meter Industries KWHR Energy Meter 4000 400A 3 Phase 3 or 4 wire

Com-Trol MCS 4000 Multi Fction Control System Door Fire Alarm

SQUARE D 8536SE01S STARTER NEMA 3 90 AMP OVERLOAD 600V MAX 120V COIL 50/60HZ

SQUARE D 8536SEO1S STARTER NEMA 3 600V MAX 50/60HZ

Square D Surgelogic Surge Protective Device MA1IMA16 120v TVS2IMA16

SQUARE D 8536REQ3537G6 SIZE 2 600V 3 PHASE MOTOR STARTER FLAWED 009

 SICE 0220001P-A PCB CARD

 VALVSYS NLS00039 ELECTRIC ACTUATOR 115VAC 50/60HZ 1 PHASE 1.0 AMPS

 Digitrace AMC-1A Ambient Sensing Thermostat 22A @ 125, 250  480VDC SPDT AK

 SQUARE D CLASS 9038 TYPE DG-11 FLOAT SWITCH 9038DG11 2POLE RATING 600VAC MAX

 0 ITY V201 STANDARD HANDY  1-7/8'' DEEP 1/2" KO 13.0 CUBIC INCH

 PAXTON 921-160-US Net2 PaxLock US SFIC Galaxy

 SIEMENS SITOP SEL1400 SELECTIVITY MODULE Input:

Square D BGA BGA36020 3 Pole 20 Amp 480V Circuit Breaker NOB

 Simplex 4905-9937 1.5DP Red Surface Mot Speaker Enclosure Fire Alarm AK

VWR SYMPHONY SP40C HANDHELD CONDUCTIVITY METER SN00001221

SIEMENS GE.580202.0002.00 | FIRE ALARM PCB CARD | GE 580 202 9101

 TYCO DIGITRACE AMC-1B LINE SENSING THERMOSTAT 22A 125/250/480VAC 943533-000

 Square D JDL JDL36150 150 Amp 600V Powerpact Circuit Breaker NTO

 BOSTON GEAR 63958 AC MOTOR 1/3 HP 3 PHASE 60HZ FRAME R56C 5/8" SHAFT

Eaton GHB GHB3015 3 Pole 15 Amp Circuit Breaker Ghb3015s1 sht trip

 RELIANCE P48H2302P-YU DUTY MASTER AC MOTOR FRAME-GA48 3 PHASE 1/4HP

CUMMINS MOD-LON 300-5926 CONVERTER LON-MODBUS MODBUS

 LOT OF 13 PARKER/SWAGELOK QUICK CONNECT STEM NIPPLE TO 3/8" MALE NPT

CPC 822-1000 Computer Process HVAC BEC Building Enviromental Controller 8221000

DB D72 0393/4 GHP PCB CIRCUIT BOARD CARD

DB D72 0393 CIRCUIT BOARD CARD D720393

 Square D 9421LR1 Series C Complete Circuit Breaker Operating Mechanism

 SHARPE CF8M SIZE 2" BALL VALVE

VINTAGE Fireplace Tool Set Black Iron Tongs Poker Shovel Brush 4 Piece Hearth

 SIEMENS 11HD3B MANUAL MOTOR STARTER

GENERAL ELECTRIC TME120Y100AS TRANSIENT VOLTAGE SURGE SUPRESSOR

 SIEMENS SEM3 Controller with CCP-3-30CC

 LOT OF 199 SPEARS 3/4" SPRINKLER HEAD TEE FITTING CPVC AK

FIRE LITE MS-5UD-3 MAIN BOARD POWER SUPPLY CIRCUIT BOARD CARD FIRE ALARM

DM SFIRE LITE MS-5UD-3 MAIN BOARD POWER SUPPLY CIRCUIT BOARD CARD FIRE ALARM

SIEMENS 03315 6FC1125-1AA01 | CONTROL BOARD CARD FIRE ALARM 6FC11251AA01 #15

ROSEMOT 03031-0193-0103 Explosion Proof LCD Meter 0-400PSI 10.5-55VDC

ROSEMOT 03031-0193-0103 EXPLOSION PROOF LCD METER 0-30 PSI 10.5-55 VDC

ROSEMOT 03031-0193-0103 EXPLOSION PROOF LCD METER 0-30PSI 10.5-55VDC

Simplex 616-475 Printer Circuit Board Fire Alarm

Simplex 562-408 Circuit Board Fire Alarm

 Schroeder LF1-1K10-P-D Fluid Hydraulic Filter LF11K10PD

 SIEMENS STARTER-MANUALLY OP 3PH .55-.8FLA N1

KUHLMAN ELECTRIC APT-646 A294800S4800SHG INDOOR AUXILIARY VOLTAGE TRANSFORMER

 LIGHTGUARD EMERGENCY LIGHTING L100W EMERGENCY LIGHT

SYSTEM SENSOR BEAM1224 PHOTO ELECTRONIC SMOKE DETECTOR VISUAL BEAM FIRE ALARM

HONEYWELL 14501810-002 ASSY REV 18 CIRCUIT BOARD

Eaton FS FS340150A 3 Pole 150 Amp 480V Circuit Breaker

 HONEYWELL HP600ULACM8ECB REGULATED POWER SUPPLY CHARGER FIRE ALARM

SIEMENS LR64027 SIMATIC 505 CHASSIS W/ 505-6508 CIRCUIT BOARD 8 SLOT PLC RACK AK

SQUARE D KA KA26250AC 2 POLE 250 AMP CIRCUIT BREAKER GRAY UR

 ITE SIEMENS FD FD63F250 3 POLE 150 AMP TRIP CIRCUIT BREAKER FD63B150 NTO

 AVIGILON ADOMP1 DOME CAMERA 320-0881A 8.0-H4A-DP1-B SECURITY SURVEILLANCE

 Square D 8903SMO3 Lighting Contactor 30 Amp 277v 480v 600v 208v Coil

 MINIMAX FTZ 3000-120 CONTROLLER FTZ 3000120

 SIEMENS 3RV-0HA10 STARTER-MANUALLY OP 3PH .55-.8FLA N1

Translogic 086-3178 086-3178-02 Circuit Board 090-1439-02 Rev. 1.1

CH EATON WESTINGHOUSE EDB EDB2100 2 POLE 100 AMP 240V R/S CIRCUIT BREAKER AK

SIMPLEX 6310-9226 CLOCK, TIME INDICATING RECORDING EQUIPMENT 595B

CH EATON WESTINGHOUSE EDB EDB2100 2 POLE 100 AMP 240V R/S CIRCUIT BREAKER

 SCHAEVITZ 02350500-000 GCA-121-125 TRANSDUCER LVDT GAUGE

 SQUARE D ORIC-A5C ACCESSORY MODULE WHITE PROTECTICE COATING

Bently Nevada 3300/16-04-01-00-00-00-00 Dual Vibration XY/GAP Monitor Board

 Square D BJA BJA36020 3 Pole 20 Amp 600V Circuit Breaker I-Line NTO

DM S Square D BJA BJA36020 3 Pole 20 Amp 600V Circuit Breaker I-Line NTO

ASI DataMyte 501-2BTSAU Data Collector KMGM

ASI DataMyte 501Y-4BNYAU Data Collector KMGM

ASI DataMyte 501GM-FIT Data Collector KMGM

ASI DataMyte 501-4BTSAU Data Collector KMGM

ASI DataMyte 501 Data Collector KMGM

Instrument Transformer 450-346FF Potential Transformer Pro 346V Ratio: 2:88:1 AK

 WAGO 750-341 FIELDBUS COUPLER 10/100 MBIT

 SPM SLD724CP-AL-M10 TRANSDUCER 24VDC VIBRATION SENSOR 4-20mA 902120602 AK

 EATON PXM 1100 MA15-1 100-415VAC 50/60HZ 100-300VDC 5W 5A

 Surgelogic MA4IMA16 Surge Protective Device 160kA 50/60Hz SPD Type 2 277V

Square D Surgelogic Surge Protective Device MA4IMA24 277v TVS4IMA24

ROSEMOT 03031-0193-0103 EXPLOSION PROOF LCD METER 0-300PSI 10.5-55VDC NEMA 4X

 LOT OF 6 KIDDE HD135F AC WIRE-IN HEAT ALARM FIRE ALARM 120V

TCI V1K25A01 V1K V1000 KLC SERIES OUTPUT FILTER 3PH 60HZ 600V MAX 25AMP MAX

 TCI V1000 KLC SERIES OUTPUT FILTER V1K27A00 3PH 60HZ 600V MAX

 Von Duprin PS873 871-2 Power Supply Wall Mot Replacement Controller AK

SYSTEM SENSOR BEAM1224 PHOTO ELECTRONIC SMOKE DETECTOR BEAM FIRE ALARM 12-24 VDC

IFIER NFN-GW-EM INTELLIGENT GATEWAY INTERFACE ONYX NFN NETWORK FIRE ALARM AK

 FACTS ENGINEERING F2-8AD4DA-1 | FIRE ALARM ANALOG I/O MODULE CIRCUIT BOARD

 Square D BJA BJA36020 3 Pole 20 Amp 600V Circuit Breaker I-Line NTO FLAWED

DM S Square D BJA BJA36020 3 Pole 20 Amp 600V Circuit Breaker I-Line NTO FLAWED

AB ALLEN BRADLEY 1771-IF Analog Input Module 12 BIT Series B P/N: 63538905

 HONEYWELL MS7510A2008 DIRECT COUPLED ACTUATOR FLOATING/MODULATING AK

Siemens 500-5848 14 module base Fire Alarm

 MORSE C26Q56R15 OUTPUT TORQUE 1252 RATIO

 ASCO 8344037 SOLENOID VALVE 16.7 WATTS 3/8IN PIPE AIR WATER LT. OIL

 THOMAS  BETTS CAMACSDOW TYPE XB REPL EMERGENCY LIGHTING BATTERY IT

 Square D JDL JDL36200 3 Pole 200 Amp 600V Powerpact Circuit Breaker NTO

SCHNEIDER PM800 POWER LOGIC 63230-500-120 SCREEN TYPE 5/12 W/ CORD SQUARE D

 ELASTIM K656LRH0270-SG3 ELBOW CONNECTOR

 HONEYWELL MS7510A2008 DIRECT COUPLED ACTUATOR FLOATING-MODULATING AK

 WireM RC7AFFTCBS Fiture Feed Assembly Poke-Thru

 GENERAL ELECTRIC 230V CR206L103 SIZE 2 MAGNETIC MOTOR STARTER

 TB EALSTIM K655LRJ0330-SG3 ELBOW CONNECTOR

GE SGHC SGHC3601L3XX 3 Pole 150 Amp 600V Circuit Breaker NO RATING PLUG FLAWED

 COOPER 52010 / 314179 PHOTOELECTRIC ASY

 Square D KAP KAP36225 3 Pole 225 Amp 600V Gray Label Circuit Breaker Flawed

 Square D BDA BDA36015 3 Pole 15 Amp 600V I-Line Circuit Breaker

 ALLEN BRADLEY 800H-2HA4T SERIES A HEAVY DUTY PUSHBUTTON STATION

GOYEN MECAIR BBD6 EMISSION MONITOR 100-240V 50/60HZ 12VA

 GS BUILDING SYSTEMS 3-RS485A NETWORK CIRCUIT BOARD CARD FIRE ALARM

HATHAWAY BETAGAUGE II MODEL 325 PRESSURE CALIBRATOR GAUGE

 IFIER BDA-70V AMPLIFIER CURCIT BOARD CARD

 THYSSEN KRUPP 874DB2 INDUSTRIAL CONTROL TRANSFORMER ELEVATOR

 Westinghouse 567F759G01 Mechanism Man SM FR AK

Cutler Hammer CPSSX240SBTTCX Clipper Power System

Cutler Hammer CPSSX240SBTTCX LN Clipper Power System

Cutler Hammer CPSSX240SBTTCX RN Clipper Power System

GE SGDA SGDA32AT0400 240V 3 pole 400 amp frame Circuit Breaker NO RATING PLUG AK

DM SGE SGDA SGDA32AT0400 240V 3 pole 400 amp frame Circuit Breaker NO RATING PLUG AK

 GE 6422120G4 6 POLE TEST BLOCK

1000' Vertical Cable 18AWG/2C Fire Alarm Cable Riser Red FEET WIRE