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。

 FAFNIR 1-15/16" PILLOW BLOCK BALL BEARING 2-BOLT BASE LSAO 1-15/16

  NORTHMAN HD-T03-302-N MANUAL DIRECTIONAL CONTROL VALVE 3/8" FNPT

LMI MILTON ROY B711-95S ELECTROMAGNETIC PUMP 1.6 GPH MAX 150 PSI 120V 1.5A

A.O. SMITH 1/4 HP CONDENSOR FAN MOTOR 115 VAC 1100 RPM 48Y FRAME 1 PHASE

TOSHIBA TOSVERT-130 2 HP TRANSISTOR INVERTER DRIVE 3Ø 460V 3.5A VT130G3U4025

TELEMECANIQUE INTEGRAL 18 LD1 LB030 W/ LB1 LB03P10 PROTECTION MODULE

 FLEXCO 1/16"-1/8" STAPLE BELT FASTENER W/STAINLESS FASTENER RS62SJ24

SQUARE D F COMBINATION STARTER 8536SBO 2 SIZE 0 120V COIL

  LINCOLN ELECTRIC GMA PM CONTROL REPLACEMENT CIRCUIT BOARD L10068-1 LN-9

 HONEYWELL WDI INPUT / OUTPUT BOARD 51304903-200 REV C

  SIEMENS SIMATIC S7 INTERFACE MODULE ET200M / LINK 6ES7 153-2BA02-0XB0

 GENERAL ELECTRIC TYPE GE4LC SIZE 4 CONTACT KIT 55-153678G02 3-POLE SIZE 4

DELL OPTIPLEX 3070 MICRO I CORE 5 9500 2.20 GHZ 8GB RAM 256 SSD HD WINDOWS 10

 GE SIZE 4 COIL 480 VAC 55-501463G004

 AMETEK FS-485/60V FLOAT CURRENT MONITOR 9-15 VDC 1 AMP

HONEYWELL BATTERY EXTENSION MODULE TK-PPD011 REV D / 51309241-175

 YEAR 1R12-279 AIR SPRING ROLLING LOBE

GE GENERAL ELECTRIC 3/4 HP AC MOTOR 56 FR 230-460 VAC 1725 RPM 3Ø 5K456G1095

 BOSTON GEAR ISO 9002 SERIES 700 GEAR REDUCER 5:1 RATIO 2.08 HP F7185B5G

 WATTS FLUIDAIR R119-12C6K PRESSURE REGULATOR 0-125 PSIG

TB WOODS ULTRACON SCR DRIVE CONTROL FOR 1-1/2 HP MOTORS 230V 1 PHASE J150

 RED-RAY INDUSTRIAL INFRARED BURNER MQC-12

 ARMSTRONG 1" INVERTED BUCKET STEAM TRAP MODEL 881 S16 810

 ARMSTRONG 1" INVERTED BUCKET STEAM TRAP MODEL 881 S14 029

 ARMSTRONG 1" INVERTED BUCKET STEAM TRAP MODEL 881 628

 ARMSTRONG 1" INVERTED BUCKET STEAM TRAP MODEL 811 X21

ALPHA OMEGA SERIES 1000 PERCENT OXYGEN MONITIOR

 KING INSTRUMENTS FLOW METER 1/2" F PORT 125 MAX PSI 42 SCFM 75302117C07

MORSE 80R RIV ROLLER CHAIN 10 FEET 119 LINKS 1" PITCH

 GEMS BRASS FLOW SWITCH 1" FS 200 1” FS200-1" BR-EP

DM S93465 AIR DIAPHRAGM SEAL

WESTINGHOUSE 1/3 HP ELECTRIC AC MOTOR 115/230V 1725 RPM B61G FRAME 1Ø

DELL POWEREDGE RACK CONSOLE 12 VDC 2 AMP 15FP 4U125

GE GENERAL ELECTRIC SIZE 0 F COMB STARTER 600V 3Ø 30A 5 HP 120V COIL CR208

  AMETEK CHARGER INTERFACE BOARD 80-228503-90 80-230808-90

HONEYWELL TOUCH CCREEN SMART FRAME 514822-200

 WEED INSTRUMENT 7600D PC PROGRAMMABLE TEMPERATURE TRANSMITTER 12-35V DC 31DA

 MTL5032 SAFETY BARRIER MEASUREMENNT TECHNOLOGY MTL5032 PULSE ISOLATOR

 MOORE INDUSTRIES SPA2 SITE PROGRAMMABLE ALARM 90-260 VAC SPA2/TPRG/2PRG/UAC

AC NET ANDOVER CONTROLS LCU8 FIRE PANEL CONTROLLER 3 AMP 120 VAC LCU16/8TO

 RELIANCE .33HP DUTY MASTER AC MOTOR 3450RPM 115/230V EB56C FR D78R6051N-VY

 A.O. SMITH ½ HP ELECTRIC MOTOR 115/230 VAC 1725 RPM Y56Y FRAME 1∅ C241

 OMEGA MWTC SERIES WIRELESS RECEIVER W/ MWTC-PROG CABLE USERS GUIDE DISK

  ALLEN BRADLEY MAIN CONTROL BOARD 1336FMCBSP2G

  TURCK PRESSURE SENSOR 24 VDC PS001V-505-LI2UPN8X-H1141

  TURCK PRESSURE SENSOR 24 VDC PS010V-505-LI2UPN8X-H1141

 SIEMENS SIMATIC S7 DIGITAL INPUT SM 326 MODULE 24 VDC 326-1BK01-0AB0

 CARRIER DUCT ENCLOSURE FOR CO2 VENTILATION CONTROLLER 33ZCASOCO2 HH99ZZ015

 ATC 0-30 MINUTE ELECTROMECHANICAL TIMER 120 VAC 305E016A10PX

BALDOR 3/4 HP AC MOTOR 208-230/460 VAC 3Ø 56 FRAME 3450 RPM M3541

LEESON 1/2 HP ELECTRIC MOTOR LS56 FR 1725/1425 RPM 208-230/460 VAC C4T17DH3B

GE MOTORS 5KCP39PG E725AS 1 HP ELECTRIC MOTOR 460VAC 1075 RPM W/ CAPACITOR

 ALLENAIR E-1-1/8 x 4-D-NT D=CC=3/8-24 STAINLESS STEEL PNEUMATIC CYLINDER

 WESTLOCK CONTROLS 200NBY2B2M0200 VALVE POSITION MONITOR

 AVOCENT AUTOVIEW 400 4-PORT KVM SWITCH 100-240 VAC 1 AMP 50/60Hz 520-261-003

 SQUARE D MOTOR CONTROL HANDLE ASSEMBLY 80438-738-01

HONEYWELL JCTION PANEL CJOO00

ASCO FUEL GAS VALVE 1-1/4" PIPE 1-5/8" ORIFICE 110/120 VAC 8042C55

 SKF 5311 ANRH/C3 ANGULAR CONTACT BALL BEARING WITH SNAP RING GROOVE

TECO SPEECON 7200CX 220V CLASS INVERTER 3Ø 230V 2.8 KVA 7.0A JNTSBDBA0002JK

 KKLE SAFETY RELIEF VALVE 912BFE23 SIZE 1'' SET 12 INHG CAP. 80 SCFM A92C

 AEG MODICON MODBUS PLUS BRIDGE MULTIPLEXER 115/230 VOLT NW-BM85-000

  D/A MANUFACTURING GP3FC-T-LSS MANIF VALVE 806-995-2316

 CUTLER HAMMER SIZE 00 MAGNETIC STARTER ENCLOSED 3Ø 2 HP 600VAC 480VAC COIL

 DURABLA MFG CO 1" FLANGED CHECK VALVE CLASS 600 WCB 316 1065 @ 700ºF

  SKF TAPERED ROLLER BEARING 120mm BORE 180mm OD 38mm VWIDTH 32024-X

NORTON DOOR CLOSERS 8301BF NON HING OPEN DOOR CLOSERS WITH METAL COVER

ALTRONIX AL300ULM MULTI-OUTPUT ACCESS CONTROL POWER SUPPLY 115 VAC 12/24 VDC

DM SSATEC SYSTEMS DUAL RANGE LOW TEMPERATURE MICROFORMER 4''/3.2''GL

 SENSORTRONICS 65016 LOAD CELL 3 MV/V 10K CAPACITY

 6" SLIDE GATE WITH BIMBA SR-125-R PNEUMATIC CYLINDER 1-1/4" BORE x 5" STROKE

 NIBCO F515-S6F-66 FS MANUAL 150 STAINLESS FLANGED 2-1/4" BALL VALVE

NORTH AMERICAN MFG H3111 SPOT TYPE DETECTOR WITH MOTING HARDWARE

 ALLENAIR 2 X 15 PNEUMATIC CYLINDER AP 2 X 15 EV-BC-WR

 PELCO IWM24-GY WALL MOT DOME CAMERA BRACKET 120/240 VAC

  FESTO 45m PNEUMATIC BLUE PLASTIC TUBING 10 BAR P-12X2-BL

WESTINGHOUSE 1/3 HP ELECTRIC AC MOTOR 115/230V 1725 RPM B61G FRAME 1 PHASE

 SUMITOMO 1/8 HP CYCLO DRIVE INDUCTION MOTOR 1710/1730 RPM GNHM01-5075-N-51

 NORGREN 2" BORE 15.625" STROKE 250 PSIG AIR CYLINDER EJ0955B1-2.00X15.625

 GE SIZE 0 30 AMP F COMBINATION MOTOR STARTER 120V COIL CR208B100DYN45

 HEAVY DUTY 2" HIGH SPEED TAPE HEAD FOR CASE SEALER

  STA-RITE 12" CON-AIRE PRESSURE TANK 2.7 GALLON CAPACITY MODEL CA8

 AIR DIAMENTIONS DIA VAC M162-FT-AA1 DIAPHRAGM PUMP W/ 1/12 HP MARATHON MOTOR

 GROVE GEAR FLEXALINE 10:1 RATIO GEAR REDUCER 1.04 HP C-FACE BM224-2

GE 1/4HP 1075 RPM 1.30 AMP 277V 5KCP39HGN599AS CONDENSER FAN ELECTRIC MOTOR

 MARATHON 1/3 HP AC MOTOR 1725 RPM 208-230/460V 56C-60 FR G580

 SIEMENS SINAMICS S 120 COMPACTFLASH CARD 6SL3054-0CG01-1AA0 PERFORMANCE EXT 1

  CUTLER HAMMER / EATON D200 CENTRAL PROCESSING IT MODULE D200PR4 W/ KEY

 CENTURY 1/2 HP POOL AND SPA DUTY MOTOR 240V 2850RPM E56Y FRAME 8-168408-01

 REXNORD ES5-R 7300090 OMEGA ELEMENT SPACE DESIGN COUPLING

DM S REXNORD ES5-R 7300090 OMEGA ELEMENT SPACE DESIGN COUPLING

TELEMECANIQUE SIZE 0 MOTOR STARTER 5 HP 600VAC 3 PHASE 20A 120V COIL A203B

  PARKER 3-WAY SOLENOID PILOT VALVE 140 PSI 1/2" N3554100149 / K065103549

ALLEN BRADLEY SIZE 1 MOTOR STARTER 3 POLE 3Ø 10HP 600VAC 120V COIL 509-BOD

 ALLEN BRADLEY SIZE 1 MOTOR STARTER 3 POLE 3Ø 10HP 600VAC 120V COIL 509-BOD

 BODINE ELECTRIC 115VAC GEARMOTOR 1Ø 1600 RPM .16A 60:1 G1250178 NCI-12R

 BARNES  JONES 1" STEAM TRAP REPAIR HEAD ASSEMBLY 40-415

 BROOKS 3750CA4A11CCFAEAA0 LOW FLOW ARMORED FLOWMETER 1500 PSIG .44-4.40 GPH

 ALLEN BRADLEY SIZE 1 MOTOR STARTER 3Ø 3 POLE 10 HP 600V 120V COIL 709-BOD804

AUTOMATION DIRECT SURE SERVO AC DRIVE 3.4 AMP INPUT 200-230 VAC SVA-2040

 PROPORTION AIR FP3NEN010A060C MASS FLOW CONTROLLER 3/8"

 FOXBORO ELECTRONIC DP TRANSMITTER MWP 2000 PSI 12.5-36VDC 843DP-B2I-M

BELIMO B221LF24 US S 3/4" VALVE LF24 US ACTUATOR B221S6LF24 US 200 PSI

TELEMECANIQUE SIZE 0 MOTOR STARTER 5 HP 600 VAC 3 PHASE 20A 120V COIL A203B

BOSCH 9810235006 4-WAY SOLENOID VALVE 5000 PSI MAX

BOSCH 9810231465 SOLENOID VALVE 4600 PSI MAX

PH Harnischfeger 975F276-1 Solenoid Coil

  RULAND NOMAR 1-3/8" 2 PIECE SPLIT RIDGID COUPLING W/ KEYWAY SPC-22-22-F

TIDLAND 566126, BOTTOM SLITTER KNIFE, 5-1/4" O.D, 4" I.D, 1-9/16 WIDE

 TIMKEN 497 9C148 TAPERED ROLLER BEARING ASSEMBLY

  GE 1/3 HP BLOWER MOTOR DUAL SHAFT 115/230 VAC 1 PHASE 1725/1425 RPM

  SHURJOINT 10" GROOVED RIGID COUPLING MODEL Z07

SUMITOMO 1.5 HP AF-3000 DRIVE 2 KVA 3Ø 380-460 VAC TYPE 4 ENCLOSURE AF30E4-A75-U

  SKF CAST IRON 2 BOLT SPLIT PILLOW BLOCK HOUSING SKF516 / SKF 516

1DM SSYLVANIA 34W U SHAPED BULB U BENT FB34/CW/6/SS/ECO (FB40CW6SSECO) (12)

 TORK 7-DAY CALENDAR DIAL MECHANICAL TIME SWITCH IN STEEL CASE 277 VAC TW220L

  HILL-ROM 1/4 HP HOSPITAL BED MOTOR 115V 1500 RPM 8600 FR 4A 1Ø TM-86120-1

GE SIZE 0 ENCLOSED MOTOR STARTER 480V COIL 18 AMP 3 PHASE CR306B4 W/ 3ARR28U3

EDWARDS FIRE ALARM BOSTER POWER SUPPLY 120 VAC BPS6A

CENTURY MAGNETEK 3/4 HP AC MOTOR 208-230/460 VAC 3Ø LA66C FR 8-142218-01

ENLIN, BLIND FLANGE, A/SA182 F304L/304150B16.5 8 HLB51 8" I.D STAINLESS

BLIND FLANGE, BLFF 150 B16.5 F304/304L SA/A182 CH6629 6" STAINLESS

 MONARCH ACT1B PANEL TACOMETER ACT1B-1-0-1-0-001

  EMERSON 3/4 HP SPLIT PHASE POOL MOTOR 115V 3450 RPM 1Ø 48Y FRAME SW4183

 DICKSON 6" DIGITAL TEMPERATURE CIRCULAR CHART RECORDER W/ ALARM KT625

MSA ULTIMA XIR GAS MONITOR XIR SENSOR

 PACIFIC LINEAR BEARING 35417088 1-1/2" I.D CLOSED SERIES PILLOW BLOCK

THOMPSON SPB24 ROD SHAFT PILLOW BLOCK

  HARRIS HIGH PERFORMANCE ARGON PRESSURE REGULATOR 355-AR-580 / 3100200

DM S  HARRIS HIGH PERFORMANCE ARGON PRESSURE REGULATOR 355-AR-580 / 3100200

 BURNHAM SAGE BOILER CONTROL 102106-01 WITH HARNESS

SMC SS5V2-W10SA2WD-07B-N7-D0 MANIF W/4 SV1200-5FU SV2000-60-5B EX500-S001