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。
以下链接皆有货
SS451-1003 - SUPERIOR ELECTRIC SYNCHRONOUS SLO-SYN MOTOR GROUP001 3-1
SS-63XTS8 Whitey Swagelok 1/2" 3-way ball valve
SSAC TIME DELAY RELAY TRM120A2X1 120VAC NIB
Ssd 5590 Armature Voltage Feedback Unit, Arm Volts 50-550 A66
SSD digital controller 3G compact | 635/KDER05-232 | 635 / K DER 05 - 232
SSD Drives 650 Series Inverter 650/007/400/F/00/DISP/GR/0/0
SSEC Evergreen M20 Mask, Wafer Cleaner, Solid State Equipment, 100609
SSi Super Systems 1601900 Gold Probe
SSM MICROCOMPUTER PRODUCTS CIRCUIT BOARD MB10,
SSP-600 O.Z./GEDNEY 6-INCH SPLIT COUPLING FOR THREADED RIGID AND IMC CONDUIT NOS
SST/WOODHEAD SSTIBSSLC VER 1.4.0 SLC500 FOR INTERBUSS
ST98 Mass Flow Meter for Air and Gases ST98-13MT01A00BA
STA7780 E209945 9652013 E82
STACO ENERGY PRODUCTS 924-0269 MICROPROCESSOR CONTROLLER, 128336
STACO ENERGY TRANSFORMER 1510 2.10KVA 15A 120-140V W/MOTOR 2602-012RRAN
STACO MAINTENANCE ENERGY BYPASS SWITCH CBP-T300 300A 600V 3PH
Staco Type 251 Variable Autotransformer Panel Mount
Staefa Control System NILAH | P out max. 120VA | T amb 0-50°C | breaking point!
STAGE 433-6642-35 CONTROLLER DRIVER, MICROSCOPE, LOW AND HIGH, MAG, 147026
Stahl 9002/11-120-024-001 INTRINSPAK Intrinsic Dual Channel Safety Barrier
Stahl Control Switch 8008/2-127
Stahltronic WCS2 // Type: WCS2-LS211 // No.: 50474396-4 // Reading Head
Staiger Mohilo Force Path Measuring System DMF-P B100 / 22231 | 4732AWRS1
STAINLESS STEEL SWAGELOK SS-8C4-1 POPPET CHECK VALVE, FIXED PRESSURE, 1/2 FNPT
Standard Regenerative SST500A 450PSI Heat Exchanger
STAR CUTTER USA PMM15 TIN 4627863 HH0509947 MILLING TOOL
STAR CUTTER USA PMM4 TIN 488315 AD-557273 MILLING TOOL
STAR CUTTER USA PMT15 TIN 4627863 HH0509947 IRH CLA .0080 THIN MILLING TOOLA
Starline Busway Tap Box 208/120 CBMDC60E12-XMC-4-3L-WM
STARRETT WEBBER 4" GAGE BLOCK Y9H030
STAR-SU' HOBBING TOOL 100714HB001 MODULE 5.771MN 1Z PROFILE ZN GASHES 20 90DAY W
STAR-SU' HOBBING TOOL 100716HB001 MODULE 1.500MN 3Z PROFILE ZN GASHES 17 90DAY W
STAR-SU' HOBBING TOOL 100718HB001 13560148 7068600000-10 G10 CL AA 2.19015 MOD 9
Statco Type 252 Variable Transformer Old Stock
Statco Variable Transformer 1020B
Statco Variable Transformer 1020B No Dial
Statco Variable Transformer 221-B 120V
STATIC CONTROL AIRCUNPS POWER IONIZER AIR GUN POWER SUPPLY
Static Control Corp 1040-S2-03-X-X RS-232 S/N 49452
STATIC CONTROLS CORP OPERATOR INTERFACE 1040-S2-03-X-X
STAUBLI 10332-12400 PCB ASSY, Interface Module, Control Board, D22123501, 127918
STAUBLI AG ROBOT 211-115-11 PCB BOARD, PCA P560C MIN SYSTEL, 139273
STB AC Amperes / Ground Fault Detector Handheld / Portable
STC Reversible Motor 115V 1200/1450 RPM CRM-H6J6PM-AA
STC Reversible Motor 115V 1200/1450 RPM CRM-H6J6PM-AA Missing Cover
Stearns Motor Disc Brake 6 FT LB 105602200BFF
STEATITE POWER 2050.120.04 TRANSFORMER T0170 11AMP MAX 120V MAX
Steel City 641-AL Adjustable 1-Gang Flush Floor Box Hub
STEEL PRODUCTS HSM010 DL500705 SIZE .0450 1.1710 COIL GALV 653FSB TEMP ANNEALED
Steel Safety Switch 8146/5-V37 208-51-0010-K | PTB 01 ATEX 1024
STEGMAN ENCODER GD20DM-1024-5LD-X
Stegmann - Ag 600 07 360X1 Ssi encoder C3581-R59 | 460007000000
Stegmann encoder HG 650 C7 600 pulse/Rev
Stein Automation ST-Terminal Control Panel HW:030310406 incl. Mount
STEINER AUTOFACER 185002-12439 BACK SPOTFACING TOOL, 6.OAL
STEINER AUTOFACER 185002-12620 99-52533 BACK SPOTFACING TOOL, 7.OAL
STEINER AUTOFACER 195003-17295 BACK SPOTFACING TOOL, 7.OAL
STEINER AUTOFACER 99-52525 BACK SPOTFACING TOOL, 7.OAL
STEINER AUTOFACER 99-52533 BACK SPOTFACING TOOL, 6.OAL
STEINER AUTOFACER 99-52616 BACK SPOTFACING TOOL, 7.OAL
Step-syn 103H7123-0440 Stepper Motor 2a Amp
STERLCO 55-T
STERLING BAND SAW BLADE 1 PIECE 130"X1"X10T & 1 PIECE 130"X1"X10/14T
Sterling Electric Gearbox 1RBQ556C56C 1750 Rpm 1HP
Sterling Electric Motor 10HP DH0104PHA-2 Dual Voltage 1800 RPM 215TC S17
STERLING HVAC 11J31R04580 1/20HP 3000RPM Motor
STERLING XPRO904D 24V 19W 1.0A FRE. SETTING PRO. VALVE CONTROL
Steute position switch EEx 335 AZ 1Ö/1S | 93053301
Sti 17076 OS-7 Mechanical Relay
Sti 43815-0012 Safety Controller
STI cmcp310ps-06-01 Stainless Steel 6 Channel Switch Box
STI FS4316BR1 SAFETY LIGHT CURTAIN RECEIVER 426760160
STI FS4316BX1 SAFETY LIGHT CURTAIN TRANSMITTER 426730160
STI FS4336BX1 FLEXSAFE SAFETY LIGHT CURTAIN TRANSMITTER
Sti MA-6APC4 Safety Interlock Switch Reed Style Magnetic Actuator 44507-0090
STI MC4232RE/427320320 MICROSAFE LIGHT CURTAIN RECEIVER (CRACKED LENS)
STI MS4316B2 MINISAFEB 16" LIGHT CURTAIN RECEIVER
STI MS4316B2 MINISAFEB 16" LIGHT CURTAIN RECEIVER
STI MS4316B2-AC1-10X-10R-U Sensor Light Curtain Assy 16", 5414756, SYS, 119166
STI MS4324BR SAFETY LIGHT CURTAIN RECEIVER 426870240
STI MS43BWAC1 SAFETY SCREEN CONTROLLER
STI MS45D-BS11-AC Control for Light Barrier
STI MS46201390Q1X LIGHT CURTAIN TRANSMITTER
STI MS46301045Q1X SAFETY LIGHT CURTAIN TRANSMITTER
STI MS46SR301045Q1RNCFP LIGHT CURTAIN RECEIVER
STILL SEALED RED LION CONTROLS POWER SUPPLY 230 VAC 12 VDC MLPS0000
Stober Allen Bradley MPL-B4560 Gear head K402AG0460MT20 Sealed CON 1
Stober Allen Bradley MPL-B540 Gear head K513AG0480MT30 Sealed CON 1
Stöber Antriebstechnik Gear Motor | 0.50 L | S102VNG2890ME10
Stöber Antriebstechnik Gear Motor | S102VNG2890ME10
Stöber Antriebstechnik Three Phase Servo Motor EK703US0M140 | 1674092/001/000/020/3
Stöber Antriebstechnik Three Phase Servo Motor EK703US0M140 | 1674092/001/000/020/1
Stöber drive technology MDS5000 POSIDRIVE FDS5015/L
STÖBER drive technology three-phase current servo motor/00508906/incl. angular pulse generator & transmission
STÖBER FAS 1015/B-1 Frequency Inverter 1.5KVA
Stöber FDS5015/L Frequency Inverter 49297 HW:08
Stöber FDS5015/L Frequency Inverter 49297 HW:08 SW:5.2
Stöber FDS5015/L Frequency Inverter 49297 HW:27 SW:V5.3C
Stober Gear Reducer And Motor F202FGN0350D71L4 K21R 83786 S90
Stober KBX-CAN & 40 021 CAN Commubox
Stöber POSIDRIVE frequency inverter 55415 | FDS5015A/L
Stöber POSIDRIVE MDS5075/L 44561 Frequency Inverter 8524108
Stöber SDS4000 POSIDYN Frequency Inverter SDS4021 | 42228 | 8479989
Stöber SDS4000 POSIDYN SDS4021 42228 | 8700887