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。

CPI Wire Legend Compressor Monitoring Device #

Siemens Op77a Operator Panel 1p 6av6641-0ba11-0ax1

Bartec Vodec R/Z1606 Power Amplifier 100V #

Cpi 17-2502-01667 Compressor Monitoring Device #

Eab Failure Alarm System Sm8-2010 Ha10-04htl-led Hatlapa #

Merlin Gerin Vigilohm TR22A Digital Electric Insulation Monitoring Device 50397

Wika S-10 Pressure Transmitter 9073922

Trafag 8864.75.2315 Pressure Transmitter Dcs2.5ar 0-2.5Bar

Allen-bradley 1746-nio4v Slc 500 Analog Combo Module -10Vdc to 10Vdc #

Selco T3300 3-Phase Voltage Relay T3300-02 100-110v

Navalimpianti 50534003004 Control Module

EndressHauser FTW 325 Point Level Limit Switch Nivotester FTW325-A2A1A #

Azbil C210da00501 Digital Indicating Controller Ac100-240v #

Man Energy Solution Mas g025b/c Tacho Module

Gefran 400-rr-0-000 Temperature Controller 22-27vac

Allen Bradley Micrologix 1762-it4 Thermocouple Input Module 24vdc 0.05a #

 Allen Bradley Micrologix 1762-it4 Thermocouple Input Module 24vdc 0.05a #

Zollner Signal-automat 6s Automatic Signal Controller Bsh/4615/6021289/09

Soren T.Lyngso 600161010 V01 PCB Stella Beta Video 555985

WOODWARD 8901-037 BOOSTER SERVOMOTOR

Kockum Sonics Tlg2000 Signal Controller #

MAK 9.01.7-91.21.00-11 Motor Control Plug-In Card #

Phoenix Contact Psm-me-rs232/rs485-p Interface Converter 2002125505

TOSHIBA CM01 EC351CM0111 CONTROLLER

Zenitel Marine etb-5 Central Panel Moted 24v #

Deif Bw144 Pitch Indicator Meter -10..0..10V #

HYDAI NET-DI16 Module #

Hernis Scan Systems Hs018x2 Printed Circuit Board Invhm94v-0 0813 #

ABB SNAT 603 CNT /SNAT603CNT/ CONTROL MONITOR BOARD

AMOT CONTROLS OVERSPEED SENSING VALVE 4110B2U20F

Deif Aop-1.1 Du2. Dgu-1 Additional Operator Panel 431865 600v

Rheintacho Messtechnik Fa-47608/009 Speed Monitor 5823.200

SAAB Marine Electronics PB254 SPD Tankradar 9150023-663 #

Mak 9.017-93.01.00-08 PCB Plug-In Card #

Mak 9.01.7-94.01.00-11 PCB Plug-In Card #

Bho Om80 Rl 8.4 Obscuration Monitor 240vac 2a

Deif Aop-2 Additional Operator Panel Board Aop-2.1 Du2.1 Dgu-2

DEIF TAS-331DG Selectable AC Transducer 24VDC #

SAAB Marine Electronic PB250 CPU-1 Tankradar 9150023-511 #

FUJI Electric FTU 120C-NK MICREX-F Digital Input Module #

Silvertech Ap021-di Term Module Stsap021

Merlin Gerin Vigilohm TR22A Digital Electric Insulation Monitoring Device 50395

Watlow 988a-12kf-magr Temperature Controller

 Bauser weishaupt 72185 Empfingen Stellantrieb 1055/23 Bestell Nr:651453

Selco M1000 Alarm Annciator Monitor M1000-24-10c 12-24v

Nakakita Seisakusho Ns737s-d Positioner 240 Kpa

Liebherr Electronic 925086914 Pcb Card #

Phoenix Contact Fl Switch Sf 7tx/fx St Industrial Ethernet Switch 30-12Awg

Mak 9.01.7-94.01.00-01 PCB CARD #

Stn Atlas Ess401 Engine Safety System Module C4338

Ascon Spa M5-3102-0300/001 Process Controller 100-240v #

Labkotec Set-2000 Level Switch for Two Sensors Operating Instructions 230v #

PRECISION DIGITAL PD750-3-14 IVERSAL TEMPERATURE METER

DM SPRECISION DIGITAL PD750-3-14 IVERSAL TEMPERATURE METER

Wago 2857-0401 iversal Isoaltion Amplifier 4kvrms #

Kendrion 3343312a03 Single Phase Rectifier Overexcitation 115-230Vac #

HCS DMA-22-01-080X-Shawe Hydraulic Control Systems Digital Current Amplifier 24v

Kt Electronic Kt-gsl-10 Steering Gear Alarms 09-10e-344

Ascon M-5-3102-0300 Process Controller M5 3102000 100-240v #

LANNG  STELMAN IP2-131 DIGITAL INPUT MODULE IP2 SYSTEM #

Robust Datacomm RDC485IC-DV-3P-CC Serial Converter #

Siemens 6es5464-8md11 Analog Input Module Simatic s5

Moxa Eds-205 Ethernet Switch 5-port 12-48V

ABB Metrawatt Gtu0287f2u05e4m9k03a04t1h32 Power Transducer 6600/100v #

Moxa Eds-408a 8-port Entry-level Managed Ethernet Switch 1201408100060

i-Safe Electronics Freshwater Salinometer SL6000

Flowserve Gestra NRS 1-50 Level Switch

Honeywell C7027a1049 Flame Detector Sensor 0 to 215f #

DM SHoneywell C7027a1049 Flame Detector Sensor 0 to 215f #

Cameron Controls 222388-00 PCB Fuse Board Fb-0906-0528 #

Scancon 2RMHF3000-D Hollow Shaft Encoder 6vdc

Vega Tor Vegator 621 Signal Condition Instrument Level Switch Ip30

Stn Atlas Electronics Ess401 Engine Safety System C4338

Mak 9.01.7-94.01.00-02 PCB Relay Card #

ELECTRONICSO.Øverlandas UPC 2000 BUFFER Protocols Converter #

Siemens 6es5700-8ma11 Bus Module C-k8d89959

BOSCH Rexroth VT-MSPA 2-525-10/V0 Amplifier Module

HAWE Directional Valve 2-3 Solenoid Operated Seated 24V SOLENOID OPERATED #

GAC ESD5500E Engine Speed Control it #

Sineax M563 Programmable Transducer 24-60v

Abb Synpol Cma 36-1 PCB Terminal Board Gvt 360 5797 #

Bosch Rexroth Mdsd1k-2x/0 PCB Solenoid Dual Driver R978886412 #

Kfm 903700 Temperature Controller 100-250v #

Siemens Pxg3.l Bacnet Router 24v 50/60hz

Volcano AXV-260-33 Flame Eye #

Scancon 2RMHF3000-D Hollow Shaft Encoder

WAGO 755-201 Profibus DP Addressing Device 0903 UTL 101

PR Electronics 2286A Signal Controller 24V #

Ex Heat Cb17 Advanced Single Cycle Thyristor Controller Cb17-cn01 #

Mak 9.01.7-94.01.00-02 Printed Circuit Board ##

Volcano Afd115a000 Flame Eye D/c 1044uf #

PMA D280-113-1000e-000 Digital Indicator 24v

Rishcon-P TRMS Power Transducer 50/60 Hz

EX HEAT CB17-2-PAN-CN1 Advanced Thyristor Controller #

OMRON CS1W-AD081-V1 Analog Input Module #

Siemens 6es5421-8ma12 Digital Input Module 24v

ABB Sadt300 PCB Supervision Measuring Board 42000212B #

ABB Sadc 33 Powf Powersupply Board 42v 80khz #

OMRON C200H-CPU01 Sysmac Programmable Controller #

SAAB Marine Electronics TXI 9150022-581 Tankradar #

Vega Vegawell 72 Well72.Amdx4k1cct Pressure Measurement 12-29v #

Measurement Mtl 4220 Earth Leakage Detector 250v #

Lips Dren ROI Printed Circuit Board #

Hobart 00-892932-00002 PCB Control Board Assembly #

Deif Delomatic 4 Du2.0 Dgu-7 Display it 431865

Eaton ELC-PC12NNAR Controller Input 24 VDC #

SAAB MARINE MELCHER PB 200 - 17.5V POSITIVE SWITCHING REGULATOR 6853391-010

  For Saginomiya ATX-71110DHS Marine Expansion Valve

Volcano AFD115A0000 D/C Flame Eye Sensor

MIURA 0000-AA6-3880-0 Spark Rod D53 #

Camille Sineax M563 Programmable Transducer 24-60v 50/60hz #

Zollner Signal - Automat 5S Programmed Signal Control Switch Bsw/49/28p/01/92

Weidmuller Rsm 16or 1832dc Gem Digital Input Extension Module 8021241001

Honeywell FPG Sensing and Control P/N 060-H831-09 #

Merlin Gerin 0685638C Contact Set TU1479100

Zollner Signal-Automat 5S Programmed Signal Control Switch BSH/49/28P/01/92 #Ne

Schneider Electric Tm221c24r Logic Controller 100-240vac

Wandfluh Mky45/18x60-g24/l15 Solenoid Valve 350bar

Deif Bw144 Rudder Angle Indicator 10-0-10v Single #

Yuken Iss-923 Intrinsically Safe Power Pack Ac 100v

Saginomiya Wgk-n701a-b10 Control Motor Actuator Ac24V

Slu8r Printed Circuit Board S30817-Q922-Z301-5 #

Pepperlfuchs Kcd2-rr-ex1 Safety Barrier 190247

Burkert 6014 C 0.9 Fkm Va Solenoid Valve 49380 #

AUTRONICA BZ-321 ZENER BARIER IT

Hirschmann RS20 Rail Switch 9.6-60Vdc #

Saacke RSE-P II Burner Controller 24VDC

OMORON CS1W-SCU31-V1 Serial Commication it #

Omron cpm1a-20cdr-a-v1 Programmable Controller 2504226-010 #

Deif Dlq144-pc-py Bar Analog Indicator 0-4-20mA #

Vega Ps60ee.60ch Electronics Sensor Module Vegaplus60

SF-Control Oyster Terminal St 100s Service Terminal