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。
EFI TITAN TRANSIENT VOLTAGE SURGE SUPPRESSOR NOISE FILTER 65DR120
PHD 3/4"BORE X 1-1/2" 1/2"STROKE CYLINDER AV2F-3/4X1-1/2X1/2-B-T
PHD 2" STROKE X 1-1/8" BORE PNEUMATIC CYLINDER AVP-1-1/8X2
TB WOOD'S VARIABLE SPEED SHEAVE PULLEY MS-97 1-3/8" SHAFT
1 TB WOOD'S VARIABLE SPEED SHEAVE PULLEY MS-97 1-3/8" SHAFT
FACTORY GE FANUC 120/240V HI-CAP 30W POWER SUPPLY IC694PWR330B
PASS SEYMOUR IVORY 120V 600W ROTARY DIMMER 90611-I
WOODHEAD SAFETY PLUG CAST RECEPTACLE ASSEMBLY W/ OUT PLUG 22806
CONTROL DEVICES LOAD GENIE AIR COMPRESSOR CHECK VALVE 5A703 PA61A
CKD 1/2" STROKE PNEUMATIC CYLINDER SCPD2-1615
CUTLER-HAMMER 150A 3-POLE CIRCUIT BREAKER HMCP150U4CA02
TELEMECANIQUE 4-6A 690V OVERLOAD RELAY LRD-10
1 TELEMECANIQUE 4-6A 690V OVERLOAD RELAY LRD-10
BOSCH REXROTH 24V 4568 PSI DIRECTIONAL VALVE 0831006003 0811404043
NORGREN 120V PILOT SOLENOID VALVE 145855.01
BIMBA 2" STROKE PNEUMATIC CYLINDER LT-092-D
FAFNIR BALL INSERT BEARING RA103RRCOL
DAYTON 1/6HP 1140RPM 115/208-230V AC MOTOR 5GD54BA
YAMATAKE HONEYWELL 30V PHOTOELECTRIC SENSOR HPX-H1
STABILUS LIFT-O-MAT GAS SPRING 1627EW-0460N
PARKER 1.25" BORE 5" STROKE CYLINDER CCU18C
EATON AIRFLEX 145095 CLUTCH BRAKE 6CB200
RADIO-ENERGIE DYNAMO TACHOMETER RE.O444-L1B-0.06-CA
MAC 110/120V SOLENOID VALVE 35A-SAC-DAAJ-1KD
YANMAR GASKET SET 129470-01531
HORIBA PC BOARD NDP-01 H348451B
ENIDINE HYDRAULIC SHOCK ABSORBER 50MC-2B
METER-MAKERS 50:5 600V CURRENT TRANSFORMER 5-SFT-500
MICRO-SWITCH 15A 480V LIMIT SWITCH BZ-RW842-A2
CUTLER-HAMMER 18.7-30.7A OVERLOAD HEATING ELEMENTS PACK H2013B-3
PARKER 4.00 3MA CYLINDER SEAL KIT 352164
MAC 24V 120 PSI SOLENOID VAVLE 413A-BAA-DM-DDAA-1CM
SANKYO SAN-SAVRTORQUE LIMITER 6TF-5C
CASH ACME 10-50 PSI 1/2" VALVE TYPE B
PHILLIPS 400W MERCURY LIGHTBULB H33GL-400/DX
BANNER MULTI-BEAM LOGIC MODULE LM4-2 16290
SCHNEIDER 300V 2W 2K OHM POTENTIOMETER 9001K2139
SEIKI CIRCUIT BOARD 861731 IN-OUT/16
SPRINKMAN 2" STROKE 250 PSI PNEUMATIC CYLINDER KP536445-A
MAC 120V 3-WAY SOLENOID VALVE 111B-110BAAA
PHOENIX CONTACT 2A 250V CIRCUIT BREAKERS TMC-1-M1-000-2.0A
ELECTRO CAM PLUS PROGRAMABLE LIMIT SWITCH PS-4011-10-P16-G
HONEYWELL LUCIFER 24V 9W SOLENOID VALVE 48-1865-F
HOFFMAN LED CONTROL PANEL LIGHT LED24V15
NORGREN 150 PSI PRESSURE REGULATOR R08-300-RGMA
ODRIVE 3M SIGNAL CABLE 08195587.11
MAC FLOW CONTROL VALVE R2-02-24-G
FACTORY STATIC BAG HONEYWELL 51304362-100 / P MU-PLAM02 4-16-4096-0523
NORDSON 24V 4 WAY SOLENOID VALVE 1055480
TOL-O-MATIC RODLESS CYLINDER SLIDE BC205#101520
ABB PROCESS PANEL 220 3BSC690099R2 NEEDS BACKLIGHT
MANUFACTURER AMETEK MODULE SEQUENCE CONTROL 1074-561 AN-3143-1BX
TOSHIBA 5.5 KVA 3-PHASE INVERTER AC DRIVE VT130G1-2055B0E
MAC 120V 1/4" PORTS 150 PSI SOLENOID VALVE 6211C-112-PM-111DA
TURCK PROXIMITY SENSOR NI4-M12T-AP6X 4606200
KENT ANALOGUE OUTPUT MODULE BOARD PX105-0373 -0370B IS6.2
AURORA .4375" BORE X 7/16-20 FEMALE ROD END CG-7
ASCO 120V 3/4" 2-WAY N.C. SOLENOID VALVE 8215C30 *NO COIL*
MAC 120V SOLENOID VALVE 45A-SA1-DAAJ-1KA
THOMAS BETTS TB 3/8"NPT STAINLESS STEEL SS LIQUIDTIGHT CONNECTOR 5341SST
REXNORD 21 TOOTH 2-1/2" THERMOPLASTIC SPROCKET 114-1053-1
NUMATICS PNEUMATIC SOLENOID VALVE 123BA4B2MG00061
GE GENERAL ELECTRIC PLUG IN RELAY ACCESSORY KIT CR2790E122A
OPTO 22 10V ANALOG OUTPUT MODULE DA5
DAYTON 3/4HP 1725RPM 115/208-230V MOTOR 5GD88
STANFORD 5-PIN CONNECTOR KIT MS3402D16S-8P
SIG POSITEC STEPPER DRIVE ERZ.NR. 64304080203 WD3-004.1802
BANNER 10-30V OMNI-BEAM POWER BLOCK OPBT2QDH
GROVE GEAR 15:1 GEAR REDUCER BM0218-3
NORDSON 200/240V VOLTAGE POWER BOARD PLUG 227568
NUMATICS SOLENOID VALVE L23BB5520
ASHCROFT 1/2" MNPT 150 PSI PRESSURE TRANSMITTER A4SBM0442D0150#G
IN BAG CHAR-LYNN SEAL KIT 60533
GE GENERAL ELECTRIC 110V CONTACTOR COIL F-3175400
NDH DELCO 25MM X 52MM BEARING Z99505
LEESON PERMANENT MAGNET D.C. GEARMOTOR CM32D25VZ3A M1125271.00
MIL-SPEC ANDREW CONNECTOR PLUG 5935-00-938-5265 44AN
MRC BALL BEARING 214SZZG
ABB 40A 2-POLE CIRCUIT BREAKER S282-Z40A
LOT OF (3) NOS SWAGELOK 1/4" X 1/2" X 1/4" BRASS FEMALE R TEES B-400-3-8TFT
VIVOLO HYDRAULIC DIRECTIONAL FLOW PUMP XV-3P-D/C 38CM3/REV VIVOIL
GE 18A 1.5MH 3-PHASE LINE REACTOR 37G01802
FALK GEAR COUPLING HUB 1040 G FLEX BORED 4.7445-4.7460
NTN 4-HOLE FLANGE BEARING UKFC-207-J
PHD 118 NEHG CUSH KIT HYD 3408-08-1
GOULD MECHANICAL SEAL 091666-0008
OMRON POWER SUPPLY MODULE S8VS-06024
VICKERS HYDRAULIC PUMP 353936
1 VICKERS HYDRAULIC PUMP 353936
SKF CHICAGO RAWHIDE OIL SEAL 45233
SMC 2" BORE X 2" STROKE PNEUMATIC CYLINDER NCMB200-0200
DOSATRON INJECTION SEAL KIT PJDI122-VVF
OMRON 10-30V PHOTOELECTRIC SENSOR E3FA-RP11
GARLOCK OIL SEAL 25255
SQUARE D 3-POLE SIZE 0 STARTER 8536-S802
PHOENIX CONTACT 5A 24V POWER SUPPLY PS-120AC/24DC/5 78-103-4300
SQUARE D SIZE 4 DC CONTACTOR 7004-MF01 SER.A NEMA SIZE-4
FACTORY KLOCKNER-BARTELT FILLER CONTROL MODULE 97835
MAC 120V 4-WAY 1/8" PORT SOLENOID VALVE 45A-AA2-DAAJ-1KJ
ABB 2600T PRESSURE TRANSMITTER 266DSHFSSA2A1 V2E6B1
GEMCOR PRESSURE SENSOR CABLE 219943-10 REV. A
MELTRIC 3/4" NPT BLUE POLY HANDLE 512P0N07
AMEC 5/8" BORE 17 TOOTH IDLER SPROCKET 40BB17H
TSUBAKI 10' ROLLER CHAIN RS100-RIV
PFANNENBERG CONTINUOUS RED LIGHT BR50-CL 28250040050
AUBURN SPARK PLUG IGNITOR IP-19 25663
SICK 30V ULTRA SONIC SENSOR UM30-213111
SIEMENS 35A 660V SITOR FUSE LINK 3NE8003
OF (25) APPLETON AC-FMC CONNECTORS 7481V1
BIMBA PNEUMATIC CYLINDER 170.38-D
GE GENERAL ELECTRIC 6A 277/480V 2-POLE CIRCUIT BREAKER V37206
CLEARLINK 20METER FIBEROPTIC DUPLEX NETWORK CABLE LC2-SMD-20-P
ASCO 8345 COIL SOLENOID REBUILD KIT 314453
ELECTROSWITCH 1-POLE 2-11 ROTARY SWITCH D4G011N/PA1001
FAFNIR BALL BEARING INSERT RAE20RRCOL
KEYENCE 300MP DOUBLE SPEED BLACK WHITE DIGITAL CAMERA XG-035M
SEALMASTER ROD END BEARING TFL10
LEINE LINDE ABSOLUTE ENCODER 670900110
POWEREX SERIES PHASE CONTROL SEMICONDUCTOR THYRISTOR T700083504BY
TURCK DIN VALVE PLUG CABLE VAS 22-D567-3M U-09482
DANAHER 230V COIL 220-L-2
SMC LOCK-OUT VALVE VHS4000-03
ALLEN-BRADLEY 110V COIL CONTACTOR 100-C09*10 W/ 100-F 100-FSC280
10LB ESAB 3/32" WELDING ELECTRODES HEAT 243693 A5.5 10018-M1
IMPERVITRAN 75VA CONTROL TRANSFORMER B075WZ13RK
BURNDY POWER DISTRIBUTION BLOCK BDB-22-350-2
GRAFIKONTROL CIRCUIT BOARD CM013301.A W/ CS012901.A
SOLA 100-375V POWER SUPPLY 1.3A 24V OUTPUT SCP30-S24B-DN
EATON HYDRAULICS HYDRO-LINE PISTON SEAL KIT SKN5-512-08
HUMPHREY 120V 0-125 PSI 1/4" SOLENOID VALVE T062E1-3-10-35-61-120
MARTIN QD BUSHING E2-7/16
IN BAG SQUARE D BRAKING RESISTOR CONNECTION KIT 180-430A 64350 G LN 6715-T2