福建中立恒自动化设备有限公司
目前，世界上有200多个厂家生产可编程序控制器产品，厂家有德国的西门子，美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙，法国的施耐德等。
可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面：
(1)向小型化、专用化、低成本方向发展
20世纪80年代初，小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展，新型器件大幅度的提高功能和降低价格，使PLC结构更为紧凑，功能不断增加，将原来大、中型PLC才有的功能移植到小型PLC上，如模拟量处理、数据通讯和复杂的功能指令等，但价格不断下降，真正成为继电器控制系统的替代产品。
(2)向大容量，高速度方向发展
大型PLC采用多微处理器系统，有的采用32位微处理器，可同时进行多任务操作，处理速度提高，特别是增强了过程控制和数据处理的功能。另外，存储容量大大增加。
(3)与计算机联系密切
从功能上看，PLC不仅能完成逻辑运算，且计算机的复杂运算功能在PLC中也进一步得到利用，从结构上看，计算机的硬件和技术越来越多地应用到PLC；从语言上看，PLC己不再是单纯用梯形图语言，而且可用多种语言编程，如类似计算机汇编语言的语句表，甚至可直接由计算机语言编程；在通讯方面，PLC与计算机可直接相连并进行信息传递。
(4)发展多样化
可编程序控制器发展的多样化体现在3个方面：产品类型、编程语言和应用领域。
(5)模块化
PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态，这使得PLC的系统功能进一步增强，控制系统设计进一步简化。
(6)网络与通讯能力增强
计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强，使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性，致使网络的应用有普遍化的趋势。
(7)多样化与标准化
生产PLC产品的各厂家都在大力度地开发自己的新产品，以求占据市场的更大份额。因此产品向多样化方向发展，出现了欧、美、日多种流派。与此同时，为了推动技术标准化的进程。一些国际性组织，如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准，如对各种类型的产品作一定的归纳或定义，或对PLC未来的发展制定一种方向或框架。
(8)工业软件发展迅速
与可编程序控制器硬件技术的发展相适应，工业软件的发展非常迅速，它使系统应用更加简单易行，大大方便了PLC系统的开发人员和操作使用人员。
可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分：一是与被控设备相连接的接口电路，另一部分是输出的映像寄存器。
PLC运行时CPU从输入映像寄存器读取输入信息并进行处理，将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成，输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出，以驱动电磁阀、接触器、指示灯等被控设备的执行元件。
以下链接皆有货
ROFIN LASER RF BOARD A9-816-0050,PMB P9816050B
ROFIN LASER RF BOARD A9-818-0030,PMB P9-818-0030
ROFIN LASER RF BOARD PMB A9-818-0010,HPC 818 REGLER
ROFIN MAT NO:223711
ROFIN PCB614-2/05.97 581648 PCB613-2/05.97 581643 PCB644-2/04.00 581644/04.00
ROFIN PCB643-2/03.99 581643/03.99 BOARD
ROFIN SINAR LASER 223407/H 04060001
ROFIN SINAR LASER SCX10 & SC1DC48 005-0020-00,& RF1K-003-0175-00,& CONTROLLER
ROFIN-SINAR LASER PCB733-4/01.03 581733 , MAT NO.581733/b
ROGERS 880-3402070100AG04,2092 021 00A-1324
ROHDE & SCHWARZ 1100.6970.00 / 110069700, CRTU/I/Q 15W D toBNC cable fd5g27
Rohde & Schwarz CBT-35 -B41-B42-B55-K52-K54-K55-K57 BLUETOOTH TESTER
Rohde & Schwarz CBT-35-B41-B42-B55-K52-K54-K55-K57 100952 BLUETOOTH TESTER
Rohde & Schwarz CMU300 Communications Analyzer 100557 W/ Options
Rohde & Schwarz CMW500 Wideband Radio Communication Tester 100551
Rohde & Schwarz CMW500 Wideband Radio Communication Tester 130017
Rohde & Schwarz DVM400-B41-K10 Digital Video Measurement System 100002
Rohde & Schwarz EFA-23 TV Test Receiver 839606003
Rohde & Schwarz EFA73 TV Test Receiver
Rohde & Schwarz EFA-83 / 2067.3004.83 TV Test Receiver/Demodulator 100013
Rohde & Schwarz ESAI EMI Test Receiver 841700005
Rohde & Schwarz ESH3 Test Receiver, 9 KHz, 30 MHz 872318036
Rohde & Schwarz ESIB26 100081 EMI Test Receiver, 20 Hz to 26.5
Rohde & Schwarz ESMI 53 EMI Test Receiver 20 Hz to 26.5 GHz
Rohde & Schwarz ESVP52 Test Reciever 20 - 1300 MHz
Rohde & Schwarz ESVS30 EMI Test Receiver, 20 MHz to 1 GHz 839873008
Rohde & Schwarz FSEB20-B10 Spectrum Analyzer, 9 kHz to 7 GHz 837428011
Rohde & Schwarz FSEB30 Spectrum Analyzer, 9 kHz to 7 GHz 832903/019
Rohde & Schwarz FSEB30 Spectrum Analyzer, 9 kHz to 7 GHz 832903/019
Rohde & Schwarz FSEB30-B15-B17 Spectrum Analyzer, 9 kHz to 7 GHz 100010
Rohde & Schwarz FSEB30-B15-B17 Spectrum Analyzer, 9 kHz to 7 GHz 100010
Rohde & Schwarz FSEK30 Spectrum Analyzer, 20 Hz to 40 GHz
Rohde & Schwarz FSEK30 Spectrum Analyzer, 20 Hz to 40 GHz 835713002
Rohde & Schwarz FSEK30 Spectrum Analyzer, 20Hz - 40GHz, CALIBRATED
Rohde & Schwarz FSEM30 -B22 Spectrum Analyzer, 20 Hz to 26.5 GHz
Rohde & Schwarz FSEM30 -B7 Spectrum Analyzer, 20 Hz to 26.5 GHz 832613/017
Rohde & Schwarz FSH18 Spectrum Analyzer 10MHz – 18GHz
Rohde & Schwarz FSIG13-B13-B22-B70 Signal Analyzer, 9 KHz-13 GHz 100025
Rohde & Schwarz FSIQ26 Spectrum Signal Analyzer 834768008*Options In Description
Rohde & Schwarz FSIQ3 Spectrum Analyzer, 20 Hz to 3.5 GHz 100082
Rohde & Schwarz FSIQ3 Spectrum Analyzer, 20 Hz to 3.5 GHz 100082
Rohde & Schwarz FSIQ3-B9-B12-B17 830790014 Spectrum Analyzer, 20 Hz to 3.5 GHz
Rohde & Schwarz FSIQ3-B9-B12-B17 830790014 Spectrum Analyzer, 20 Hz to 3.5 GHz
Rohde & Schwarz FSIQ3-B9-B12-B17 830790017 Spectrum Analyzer, 20 Hz to 3.5 GHz
Rohde & Schwarz FSIQ3-B9-B12-B17 830790017 Spectrum Analyzer, 20 Hz to 3.5 GHz
Rohde & Schwarz FSIQ7 B10-B13 Spectrum Analyzer, 20 Hz to 7 GHz 838866033
Rohde & Schwarz FSIQ7 Spectrum Analyzer, 20Hz-7GHz 836701027 W/ Options
Rohde & Schwarz FSL6 B5-B22 Spect Analyzer, 9 kHz to 6 GHz 100830
Rohde & Schwarz FSP13 Spectrum Analyzer, 9 kHz to 13GHz 100165/013 W/ Options
Rohde & Schwarz FSP38 Spectrum Analyzer 9KHz to 40GHz
Rohde & Schwarz FSP38 Spectrum Analyzer 9KHz to 40GHz
Rohde & Schwarz FSU8 -B16-K5 Spectrum Analyzer, 20 Hz to 8 GHz CALIBRATED (0111)
Rohde & Schwarz FSU8 Spectrum Analyzer, 20 Hz to 8 GHz
Rohde & Schwarz FSV40 -N -B4 Spectrum Analyzer, 9 kHz to 40 GHz, FSP40
Rohde & Schwarz NRP-Z81 - Wideband Power Sensor 50MHz to 18GHz
Rohde & Schwarz PTW70-BG-WLA WLAN Protocol Tester 100018
Rohde & Schwarz SFL-C For Digital TV testing, DVB-C 10013
Rohde & Schwarz SFL-S For digital standards DVB-S and DVB-DSNG Broadcasting
Rohde & Schwarz SFL-T Test Transmitter 100049
Rohde & Schwarz SFQ (2072.5501.02) TV Test Transmitter 839019011 w/opts
Rohde & Schwarz SFQ (2072.5501.10) TV Test Transmitter 8317771007 w/ opts
Rohde & Schwarz SFQ (2072.5501.20) TV Test Transmitter 832889/006 w/ opts
Rohde & Schwarz SFU Broadcast Test Systems 100869 With Options
Rohde & Schwarz SMIQ03B Signal Generator. 300 kHz to 3.3 GHz W/ Options
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Rohde & Schwarz SMIQ04B Signal Generator, 300 kHz -4.4 GHz /835066009 W/ Options
Rohde & Schwarz SMP02 /B11/B12/B15 Signal Generator 827408/008
Rohde & Schwarz SMP02 High Power Signal Generator,to 20GHz 839225003
Rohde & Schwarz SMP02-B11-B15-B19 High Power Signal Generator, 2-20GHz 847652005
Rohde & Schwarz SMR20 B1, B5, B11, Signal Generator 10 MHz to 20 GHz, SN 104689
Rohde & Schwarz SMR27 Opt B1/3/4/5/11/14/15 Signal Generator 27GHz
Rohde & Schwarz SMT06 Signal Generator,kHz to 6Ghz
Rohde & Schwarz SMU200A Vector Signal Analyzer, 100kHz - 3GHz Options!!
Rohde & Schwarz UPL16, B4 B6 B10 B8 AUDIO ANALYZER DC to 110 kHz
Rohde & Schwarz ZVC 20kHz-8GHz Vector Network Analyzer 100022
Rohde & Schwarz ZVK Vector Network Analyzer, 10 MHz - 40 GHz LOADED OPTIONS
Rohde & Schwarz ZVR -B15 Vector Network Analyzer, 10 kHz toGHz 846276011
Rohde & Schwarz ZVR -B15 Vector Network Analyzer, 10 kHz toGHz 842577008
Rohde & Schwarz ZVR ZVRE B2,K9 Vector Network Analyzer, 10 kHz toGHz
Rohde and Schwarz - ESPC10 - EMI Precertification Test Receiver
Rohde and Schwarz CBT-35 B55 K55 K57 100488 BLUETOOTH TESTER
Rohde and Schwarz CBT-35-B41-K54 100100 BLUETOOTH TESTER
Rohde and Schwarz CMS57 100109 Radio Communications Service Monitor, 1000MHz OPT
Rohde and Schwarz CMS57 B1B2 B34 100030 Radio Communications Service Monitor
Rohde and Schwarz CMS57 B2 B22 833896004 Radio Communications Service Monitor
Rohde and Schwarz CMU300 100010 Communications Analyzer *OPTIONS*
Rohde and Schwarz CMU300 100015 Communications Analyzer. OPTIONS
Rohde and Schwarz CMU300 838859021 Communications Analyzer With OPTIONS
Rohde and Schwarz EFA93 100094 TV Demodulator (M/N/NTSC/BTSC)
Rohde and Schwarz EFA93 100102 TV Demodulator (M/N/NTSC/BTSC)
Rohde and Schwarz ESIB40 Opt. B4, B5, B21, Test Receiver, 20Hz-40GHz, CALIBRATED
Rohde and Schwarz ESIB40 Test Receiver, 20 Hz - 40 GHz, SN 100106
Rohde and Schwarz ESU40 40 GHz EMI Test Receiver, B9,B12,B18
Rohde and Schwarz ETL 100663 R&S ETL TV Analyzer w/Tracking Generator, OPTIONS
Rohde and Schwarz ETL 100760 R&S ETL TV Analyzer w/Tracking Generator, Options
Rohde and Schwarz ETL TV Analyzer w/Tracking Generator, OPTIONS
Rohde and Schwarz FSEB30 -B15 100060 Spectrum Analyzer 9 kHz to 7 GHz
Rohde and Schwarz FSEB30 -B15 100060 Spectrum Analyzer 9 kHz to 7 GHz
Rohde and Schwarz FSEM30 100040 Spectrum Analyzer, B15, B16, B17
Rohde and Schwarz FSEM30 Spec Analyzer, 20 Hz to 26.5 GHz 826246003 CALIBRATED
Rohde and Schwarz FSEM30-B22 Spectrum Analyzer, 20 Hz to 26.5 GHz 100160
Rohde and Schwarz FSEM3-B22 100158 Spectrum Analyzer, 20 Hz to 26.5 GHz
Rohde and Schwarz FSIQ26 B13-B22 Vector Signal Analyzer, 26.5 GHz 831929012
Rohde and Schwarz FSIQ3-B13-K11 100042 Spectrum Analyzer, 20 Hz to 3.5 GHz
Rohde and Schwarz FSIQ3-B13-K11 100042 Spectrum Analyzer, 20 Hz to 3.5 GHz
Rohde and Schwarz FSIQ40 100017 Spectrum Analyzer, 10 kHz to 40 GHz OPTIONS
Rohde and Schwarz FSIQ7 834767004 Spectrum Analyzer, 20 Hz to 7 GHz
Rohde and Schwarz FSIQ7 Spectrum Analyzer, 7 GHz, B11,B12,B16
Rohde and Schwarz FSL6 TG 100464 Spectrum Analyzer, 9 kHz to 6 GHz, 1300.2502K16
Rohde and Schwarz FSL6 TG 100515 Spectrum Analyzer, 9 kHz to 6 GHz 1300.2502K16
Rohde and Schwarz FSL6 TG 100516 Spectrum Analyzer, 9 kHz to 6 GHz 1300.2502K16
Rohde and Schwarz FSL6 TG 100577 Spectrum Analyzer, 9 kHz to 6 GHz 1300.2502K16
Rohde and Schwarz FSMR26 Measuring Receiver, 20 Hz to 26.5 GHz
Rohde and Schwarz FSP3 B3-B4-B9 100154 Spectrum Analyzer, 9 kHz toGHz
Rohde and Schwarz FSP38 100532 Spectrum Analyzer 9kHz-40GHz
Rohde and Schwarz FSP38 100532 Spectrum Analyzer 9kHz-40GHz
Rohde and Schwarz FSP38 Spectrum Analyzer, 40 GHz, SN 100803
Rohde and Schwarz FSP38 Spectrum Analyzer, 40 GHz, SN 100803
Rohde and Schwarz FSP7 B15,B70,K73 Spectrum Analyzer, 9 kHz to 7 GHz
Rohde and Schwarz FSP7 Opt. B4 Spectrum Analyzer 9 kHz to 7 GHz, SN 100277
Rohde and Schwarz FSQ8 B88,K5,K70 Spectrum Analyzer, 20 Hz to 8 GHz
Rohde and Schwarz FSQ8 Opt. B25 + Firmware Opt's, Spectrum Analyzer 20Hz to 8GHz
Rohde and Schwarz FSU26 200016 Spectrum Analyzer, 20 Hz to 26.5 GHz
Rohde and Schwarz FSU26 Opt. B16, B18 & K7, Spectrum Analyzer, 20 Hz to 26.5 GHz
Rohde and Schwarz FSU26 Opt. K7, B25, B19, Spectrum Analyzer, 20 Hz to 26.5 GHz
Rohde and Schwarz FSUK30, K40, B16, B21, Spectrum Analyzer, 50GHz
Rohde and Schwarz FSUSpectrum Analyzer, GHz, Opt. B21, K30, K7, U3, B18
Rohde and Schwarz FSU8 Spectrum Analyzer With Option FSU-B25, 20 Hz-8 GHz 100263
Rohde and Schwarz FSV3 -B29 101966 Signal Source Analyzer 9 kHz to 3.6 GHz
Rohde and Schwarz FSV40-N Opt. B4, Spectrum Analyzer, 9 kHz to 40 GHz, 102372
Rohde and Schwarz FSVA40 101583 Spectrum Analyzer, 40GHz OPTIONS, CALIBRATION
Rohde and Schwarz NRP2 Power meter