描述
1C31194G03
70年代是PLC崛起,首先在汽车工业获得大量应用,在其它产业部门也开始应用的时期。80年代是它走向成熟,全面采用微电子及微处理器技术;大量推广应用,并奠定其在工业控制中不可动摇地位的时期。在此阶段PLC销售始终以两位数百分点的速度增长,前六年的增长率超过35%,后四年稳定发展,年增长率约12%。90年代又开始了它的第三个发展时期。随着PLC的国际标准IEC 61131的正式颁布,推动了PLC在技术上发动新的突破:在系统体系结构上,从传统的单机向多CPU和分布式及远程控制系统发展;在编程语言上,文本化和图形化的语言多样性,创造了更具表达控制要求、文字处理、通信能力的编程环境。
值得注意的是PLC和DCS这些原来处于不同硬件平台的系统,正随着计算技术、通信技术和编程技术的发展,趋向于建立同一硬件平台,运用同一个操作系统、同一个编程系统,执行不同的DCS和PLC功能。这就是真正意义上的EIC三电一体化。或者说DCS和PLC的形态将会变化,而它们的功能依然存在。其中的关键技术应该是嵌入式PC系统及支持现场总线的I/O (硬件) ,以及以IEC 61161-3为基础的编程系统及强实时(hard real-time)操作系统。
ILX Lightwave LDC-3916 16 calibrated 3916376 & 3916558
ILX Lightwave LDC-3916 Laser Diode Controller+3916334
ILX Lightwave LDC-3916 16Channel Laser Diode Controller
ILX Lightwave LDX-36018-35
ILX Lightwave LDX-36010-35
ILX Lightwave LDC-3900 Laser Diode Controller+ ModuLe
ILX Lightwave LDC-3916
ILX Lightwave FOS-79710
ILX Lightwave LDT-5980
ILX Lightwave LDX-3690
ILX Lightwave LDP-3840B
ILX Lightwave LDX-3680
ILX Lightwave FOS-79800E/315C1
ILX Lightwave FOS-79800E/315L1
ILX Lightwave FOS-79800E/R
ILX Lightwave FOM-7900B
ILX Lightwave LDC-3722B. Laser Diode Controller
ILX Lightwave LDX3620 Ultra Low-Noise Current Source
ILX Lightwave OMM-6810B Optical Multimeter *Warranty
ILX Lightwave MPS-8035 Dual Channel Fiber Optic Sources
ILX Lightwave LDX-3650
ILX Lightwave LDC-3752 6A laser driver/ 16W Temp Cont.
ILX LIGHTWAVE LDX3232 HI COMPLIANCE LASER DIODE CURRENT
ILX Lightwave LDX-3220
ILX Lightwave LDC3742 Laser Diode Controller, 2 / 4A Cu
ILX Lightwave FPM-8200
ILX Lightwave LCM-39437
ILX Lightwave LDC-3900 Laser Diode Controller
ILX Lightwave LCM-39440
ILX Lightwave LDT5910B Thermoelectric Temperature Contr
ILX LIGHTWAVE MPS-8033 DFB Precision Fiber Optic
ILX Lightwave LCM-39800
ILX LIGHTWAVE MPS-8024 1310 1550 FIBER OPTIC SOURCE DFB
ILX Lightwave LCM-39420
ILX Lightwave LCM-39427
ILX Lightwave LCM-39425
ILX Lightwave LDC-3916372
ILX Lightwave LDC-3916332
ILX Lightwave LDX-3620 Ultra Low Noise Current Source
ILX Lightwave LDD/TEC 3916376 Combo Module fr LDC 3916
ILX Lightwave FOS79800-315-1547.5 nm Precision Fiber Op
ILX Lightwave FOS79800-315-1556.2 nm Precision Fiber Op
ILX Lightwave FOS79800D-000-1312.00 nm Precision Fiber
ILX Lightwave FOS79800D-000 Laser Source Module 1536,23
ILX Lightwave FOS79800-315-1550.6 nm Precision Fiber Op
ILX Lightwave FOS79800D-000-1534.25 nm Precision Fiber
ILX Lightwave FOS79800D-000-1550.12 nm Precision Fiber
ILX Lightwave LDX3412 Precision Current Source
ILX Lightwave LDC3916332 500mA Dual Current Source Lase
ILX Lightwave 3 Amp current TEC Module 3916558 LDC 3916
ILX Lightwave Laser Diode driver LDD 3916334 LDC 3916
ILX LIGHTWAVE LDC-3752 LASER DIODE CONTROLLER / REPAIR
ILX Lightwave LCM39425 Combination Module (500 mA Curre
ILX Lightwave LDC3916376 1.5A Current Source / 9W Laser
ILX Lightwave FOM-7900B Test System *Warranty
ILX Lightwave LPA-9072 Laser Diode
ILX Lightwave LDT5910 Thermoelectric Temperature Contro
ILX Lightwave LDC-3916338
ILX Lightwave LDC-3916558
ILX Lightwave TCM-39034
ILX Lightwave LCM39437 Current Source & TE Controller M
ILX Lightwave LDC3916372 0.5A Current Source / 9W Laser
ILX Lightwave LDX3207B Precision Current Source, 200mA
ILX Lightwave LDC-3916332 Module, Dual Current Source
ILX Lightwave LDC3916338 3A Current Source Laser Diode
79800B FIBER OPTIC SOURCE ILX LIGHTWAVE
ILX Lightwave TCM39032 32 W TEC Module
ILX LIGHTWAVE ILX LCM-39437 CURRENT TEC MODULE LDC-3900
ILX LIGHTWAVE ILX LCM-39437 CURRENT TEC MODULE LDC-3900
ILX LIGHTWAVE CSM 39800 CURRENT SOURCE MODULE LDC-3900
ILX lightwave LDX-3525 precision current source
ILX Lightwave LDX3207 Precision Current Source, 200mA
ILX LIGHTWAVE CSM 39400 CURRENT SOURCE MODULE LDC-3900
ILX Lightwave LDT-5412
ILX Lightwave MPS 8033 Precision Fiber Optic Source 850
ILX Lightwave CSM39100 Current Source Module, 1000mA
ILX Lightwave LDC3916374 1A Current Source / 9W Laser D
ILX Lightwave LCM-39427, LCM39427 Current Source/TE Con
ILX Lightwave OMH-6727 InGaAs Power/WaveHead *Wty
ILX Lightwave TCM-39032 32W TE Controller
ILX Lightwave LDX-3412 Precision Current Source,LDX3412
ILX Lightwave FOS-79800D/R
ILX Lightwave 3 Amp current TEC Module 3916558 LDC 3916
ILX Lightwave OMH6708B -50 to +20dBm InGaAs Power Head
ILX Lightwave CSM39010 100mA Current Source Module
ILX Lightwave CSM39020 200 mA Current Source Module
ILX Lightwave CSM39050 500 mA Current Source Module
ILX Lightwave Precision Fiber Optic Source MPS-8033
ILX Lightwave 79800D Precision Fiber Optic Source
ILX Lightwave MPS-8012 1550nm LED Fiber Optic Sources
ILX Lightwave CSM-39020
ILX Lightwave CSM-39100
ILX Lightwave CSM-39010
ILX Lightwave CSM-39050
ILX Lightwave CSM-39050 Current Source Module
ILX Lightwave Combination Module LCM-39427
ILX Lightwave LDT-5100
ILX Lightwave PDA6424 Photodiode Amplifier
ILX Lightwave LDM4984 Laser Diode Mount 14-pin Butterfl
LOT THORLABS ILX LIGHTWAVE LASER OPTICAL DETECTOR HEADS
ILX Lightwave LDM4970 Laser Diode Mount 14-pin Butterfl
ILX Lightwave LDM-4970 Laser Diode Mounts – Mint
ILX LIGHTWAVE LNF-320 Low Noise Filter
Brand NEW ILX LIGHTWAVE LNF-320 Low Noise CW Filter
ILX LIGHTWAVE LDT-5910 Instruction Manual, Original
ILX Lightwave FOS79800C 1554.13 nm DFB
ILX Lightwave FOS79800C 1309.30 nm laser source telecom
ILX Lightwave LCM-39420 Instruction Manual