1B81-010123-15 PCB板

1B81-010123-15 PCB板

1B81-010123-15 PCB板

1B81-010123-15 PCB板

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。

Seco TCMT21.51-F1 TP1000 Carbide inserts cutting tools 5 pcs

Seepex Progressing Cavity Pump Rang MD Size 0005 Pump Only No Motor

Seepex Progressive Cavity Pump w/Gear Box & Variable Speed Drive w/Controller

Self Locking Safety Snap Hook Fall Protection Harness Lanyard 5000Lb Lot of 3

Sensotec 441-30K 30,000 Load Cell Low-Profile Pancake

Sensotec EB/2101-01TJA-01 Pressure Transducer 16-32 INHG ABS 26-32VDC 1/4" NPT

Sentrol 151-7Z-06K Non-Contact Interlock Position Switch 120VAC 28VDC

Serdi 4.90mm (.1929") Carbide Valve Guide Pilot

Serdi 8.71mm (.3429") Carbide Valve Guide Pilot

Servo Motor Coupling 1.169" X 1" Flexible Shaft

Set of 4 Heavy Duty Plate Caster Wheels 12" 2 rigid, 2 swivel Roller Bearing

Setco M Series Tooling/Utiliy Slide M1 4" Travel On 360 deg Swivel Table w/Tilt

Setco Support MP231 Type Outboard Spindle 7-1/2x5-1/2x4-1/2

Sew Eurodrive R42LP Speed reducer Gearbox 8.16:1 Ratio 1" Output

Sew-Eurodive KA47TDT80N4TH 1HP 330/575VAC motor w/gearbox 1-3/8"bore 16rpm out

Sew-Eurodrive DFT100LS4 R37100LS4 Gear Motor 3HP 3.05:1 Ratio 445 in/lb 230/460V

Sew-Eurodrive DFT100LS4 R47DT100LS4 Gear Motor 3HP 5.64:1 Ratio 620 in-lb 3PH

Sew-Eurodrive DFT100LS4 R47DT100LS4 Gear Motor 3HP 5.64:1 Ratio 620 lb-in 3PH

Sew-Eurodrive DFT80N4 RXF67DT80N4 1HP Gear Motor 230/460V 3.77:1 Ratio 140 in/lb

Sew-Eurodrive DFT90L4 K47DT90L4 Gear Motor 2HP 9.1/1 Ratio 665 lb-in 230/460V

SEW-EURODRIVE R47DT90S4 Speed Reducer Gearbox 12.54:1 Ratio IEC Frame Size 90

Sew-Eurodrive R63LP56 0062841 Eaton Kenway Gear Box Speed Reducer Ratio 34.26:1

SEW-EURODRIVE SF32DT71C4 0.33HP 15.1 Ratio Motor Gearbox Speed Reducer 208/360V

SGS ISO 9001:2000 24 VAC Solenoid Valve Normally Closed 1/2" NPT Viton Diaphragm

Sharp JW-33CUH1 Control Module Link I/F on CPU unit 4 wire type

Sharp VL-L50U Slim Cam VHS Camcorder 12X 6V Battery and Charger

Single Web Iron Right Angle Machine Angle Mounting Plate 4"x6"x11-1/4"x3/4"

Single Web Iron Right Angle Machine Angle Mounting Plate 4"x6"x11-3/4"x3/4"

Single Web Iron Right Angle Machine Angle Mounting Plate 4"x6"x17"x1"

Single Web Iron Right angle Machine Mounting Plate 4"x6"x14"x1" Thick

Sioux 1/2" Chuck Pneumatic Air Drill

Sioux Tools SC80910AL Octagon Shank Chisel Scaler w/Lever Throttle Pneumatic

SIR AP-3 36VDC Linear Actuator Spindle Uncovered 6"Stroke 600LBS Thrust

Size #2 Bilz Style 5-/16" Quick Change Tap Adapter Collet

SKF 13302 127 Double Row Self Aligning Ball Bearing 7x22x7mm NIB

SKF 15810 0704-NFTP Oil Seal NIB

SKF 2202 E-2RS1TN9 Self-Aligning Ball Bearing NIB

SKF 23224 CC/W33 Spherical Roller Bearing 120x215x76mm NIB

SKF 32412 Radial Shaft Nitrile Oil Seal 3.25"ID 4.254"OD 0.25"Width

SKF 4912 Metal Cased Non Spring Loaded Oil Seal 1/2"ID 3/4"OD 1/8"Width Lot of 9

SKF 6001 JEM Open Ball Bearing

SKF 6209 N 176 S Ball Bearing w/snap Ring SSR

SKF 6308 2ZJEM Metal Shielded Ball Bearing NIB

SKF 7206B Angular Contact Ball Bearing Single Row 30MM ID 16MM Width 62MM OD

SKF FY 1.7/16 TF YAR 207-107-2F 4-Bolt Ball Bearing Flange Unit 1-7/16" Bore NIB

SKF KM-27 Bearing Locknut Thread Size: M135x2mm OD

SKF YAR 211-115-2F 2 Bolt Pillow Block Bearing 1-15/16" Bore

Sky Electronics SKNPL-2C & DSM-8 Relay 24VDC Coil W/Base Rail Mount 250VAC Max

SLCE C039 9807 Capacitor 10000U

Small Air Nipper Nice Jaws

SMC AR25-F02 Pneumatic Inline Regulator 1/4" NPT 125 PSI w/Gauge

SMC AS3201F-N03-11S Flow Control 90° Elbow 3/8NPT Port x 3/8 Tube Lot of 2

SMC AS4311F-12 Air Flow Control Valve Push-To-Connect Swivel 12mmx1/2 BSPT

SMC CHDFCB40-A8419-150 Hydraulic Cylinder 40mm Bore 150mm Stroke Clevis Mount

SMC KQ2L06-M5 6MM Elbow Swivel Push-to-Connect Fitting M5X0.8

SMC KQ2U07-11 3/8" OD Tube x 1/4"" x 1/4" OD Tube Y Union Connector Lot of 2

SMC NAF4000-N04 Pneumatic Filter 1mpa 60c 1/2 NPT

SMC NCA1B200-UIA000041 Pneumatic Air Cylinder 2" Bore 14" Stroke

SMC NCDA1B325-4350-A54L Pneumatic Air Cylinder 3-1/4" Bore 43-1/2" Stroke

SMC NCDA1B325-4350-A54L Pneumatic Air Cylinder 43-1/2" Stroke 3-1/2" Bore

SMC NVFS2100 Pneumatic Air Solenoid Valve

SMC NVZ5140-5MOZ 5 Port Solenoid Valve Body Ported 24VDC

SMC VQ1100-5 2 Position Single Acting Solenoid valve 5 port 24VDC

SMC VXD2130 Air or Liquid Solenoid Valve 3/8" npt 6-48 AC/DC

SM-Cyclo CNHM3-6120YC-21 Gear Reduction Motor 3HP 83.3 Output RPM 21:1 Ratio 3PH

Smith SW214 Heavy Duty Welding Tip 14" OAL 0.144 Hole

SMITKA PROFEX Flexible Duct Connector 10"x20" Vibration Isolator 1" Flange

Smooth Top Material Handling Conveyor Belt 8"x58' Long 7/32" Thick Black PVC

Smooth Top PVC Material Handling Conveyor Belt 10-1/2"x50' Long 7/32" Thick

Smooth Top PVC Rubber V-Belt V-Guide Conveyor Belt 4" Wide 10' Long 2-Rolls

Smooth Top PVC Rubber V-Belt V-Guide Conveyor Belt 4" Wide 22' Long .160" Thick

Smooth Top PVC Rubber V-Belt V-Guide Conveyor Belt 4" Wide 24' Long .160" Thick

Smooth Top Red Urethane Rubber Conveyor Belt 6-1/2"W x 15'L Interwoven Carcass

SMW Accu-smart 60 Control system 60 CNC 4th Axis 220V

Snap-On CG-270 2-Jaw Lock Plate for CG-270 Jaw Puller

Snap-On CGA-2A Single Stage Hydraulic Hand Pump (Leaks @ Plunger)

Snap-On L-53-A Sliding T-Handle Breaker Bar Head Only

Snap-On LHS80D Hole Saw 2 1/2" Dia NIB

Snap-On PH50E Pneumatic Air Hammer W/Blue-Point PH 201 Needle Scaler Attachment

Snap-On SIMDFM19 19 mm 12-Point 3.8" Drive Semi-Deep Well Metric Socket

Snap-On SIMDFM24 24 mm 12-Point 3/8" Drive Semi-Deep Well Metric Socket

Snap-On TQPR600B2152 3/4" Drive Ratchet head torque wrench w/extention bar

Snap-Tap CNR 7/8"x3-1/2" Indexable threading boring bar

SNC P20840 Transformer Single Phase 3 KVA 200V/240V 400/480V PRI 120/200V SEC