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
Belimo sbg24 range controller
Bellows Hose Metal 32" Long, Stainless Steel
Bemac US31 Fino QJN0024 Sfarfallio Dc 24V Scheda Circuiti
BEMAC US31 UP QJN0024 Flicker DC 24V Circuit Board
BEMAC UST-201-E PCB CARD 1309E
BEMAC Uzushio U-1P QNJ0031 One Pulsazioni Potenza Unità
BEMAC Uzushio U-1P QNJ0031 One Pulse Power Unit
Benchmark Instrumentation 39180 601-619-0280 Module 0948
Bender AGH520S Acople Dispositivo B913033
BENDER AGH520S clutch device B913033
BENDER AGH520S COUPLING DEVICE B913033
BENDER IRDH 1025 MYX Aislamiento Monitoreo Dispositivo
BENDER IRDH 1025 MYX INSULATION MONITORING DEVICE B914583
BENDER IRDH275-427 D0160 V1.80 INSULATION MONITORING DEVICE
BENDER IRDH275-435 A-ISOMETER INSULATION MONITORING DEVICE B91065100 D160 V1.4
BENDER IRDH275B-435 a-Isometer Aislamiento Monitoreo Device B91065101 D159 V1.4
BENDER IRDH275B-435 A-ISOMETER INSULATION MONITORING DEVICE B91065101 D159 V1.4
BENDER IRDH275B-435A-Isometer Insulation Monitoring Device B91065101 D159 V1.4
Bender irdh375 isometer irdh375-435 insulation monitoring device D183 v1.8
Bender MK800 Remote Alarm Indicator
BENDER RCMA420-D-1 RESIDUAL CURRENT MONITOR(not working)
BENNING NT107_120136_SN4699583 B33005
Bental Industriale B-032-052-018-E 91-11-01-83F-2 Thomson 32-414-610-6818
Bental Industries B-032-052-018-E 91-11-01-83F-2 Thomson 32-414-610-6818
BENTEL SECURITY BGSM-120BA GSM/GPRS ALARM COMMUNICATOR
BENTLY NEVADA | 3300/03-01-00 | 89998-01 | REV A | SYSTEM MONITOR
Bently Nevada 3300 Vibration Velocity Acceleration Monitor Rack With Modules
Bently Nevada 3300 Vibrazioni Velocità Accelerazione Monitor Rack Con Moduli
Bently Nevada 3300 VISHH 700 For Vibration Monitoring System 7459
Bently Nevada 3300 VISHH 700 Per Sistema Di Monitoraggio Delle Vibrazioni 7459
Bently Nevada 3300 VISHH 701 For Vibration Monitoring System
Bently Nevada 3300 VISHH 701 Per Vibrazioni Sistema di Monitoraggio
Bently Nevada 3300 VISHH 706 For Vibration Monitoring System 7459
Bently Nevada 3300 VISHH 706 Per Vibrazioni Sistema di Monitoraggio 7459
Bently Nevada 3300 VISHH 707 For Vibration Monitoring System
Bently Nevada 3300 VISHH 707 Per Vibrazioni Sistema di Monitoraggio
Bently Nevada 3300 VISHH 708 For Vibration Monitoring System 7459
Bently Nevada 3300 VISHH 708 Per Sistema Di Monitoraggio Delle Vibrazioni 7459
Bently Nevada 3300 VISHH 709 For Vibration Monitoring System 7459
Bently Nevada 3300 VISHH 709 Per Sistema Di Monitoraggio Delle Vibrazioni 7459
Bently Nevada 3300 VISHH 710 For Vibration Monitoring System
Bently Nevada 3300 VISHH 710 Per Sistema Di Monitoraggio Delle Vibrazioni
BENTLY NEVADA 3300/03
Bently nevada 3300/03 system monitor 3300/03-03-00
Bently nevada 3300/12,3300/03,3300/16,3300/20 monitoring system unit with rack
Bently nevada 3300/20-12-01-01-00-01 dual thrust monitor
Bently nevada 3300/30 pwa 79522-01r six channel temperature monitor
Bently Nevada 3300/30-12-02-00-00-00 Channel Temperature Monitor 81672-01 rev E
Bently Nevada 3300/30-13-01-01-00-00 6 Channel Temperature Monitor
Bently Nevada 330180-90-05 5mm & 8mm Proximitor Sensor
Bently Nevada 330180-90-05 5mm & 8mm Proximitor Sensore
Bently Nevada 3303 Alimentazione Elettrica 7459
Bently Nevada 3303 Power Supply 7459
Bently Nevada 3303/03 Sistema Monitor 7459
Bently Nevada 3303/03 System Monitor 7459
Bently nevada 3500 AC Power Supply
BENTLY NEVADA 3500/15 AC POWER SUPPLY PWA 127610-01
Bently Nevada 3500/20 Rack Interface Module
BENTLY NEVADA 3500/20 RACK INTERFACE MODULE PWA 125744-02
BENTLY NEVADA 3500/25 KEYPHASOR MODULE PWA 149369-01
BENTLY NEVADA 3500/32 4 CHANNEL RELAY MODULE PWA 125712-01
BENTLY NEVADA 3500/42M PROXIMITOR / SEISMIC MONITOR PWA 140734-02 S
Bently Nevada 81545-01 Xducer I/O & Record Terminals Module assy78462-01u
Bently Nevada 83008-01 Channel Temperature Monitor
BENTLY NEVADA 86827-01 REV A DUAL VIBRATION MONITOR 3300/16 XY/GAP
Bently nevada assy78462-02 l signal input relay card 81544-01
Bently nevada dual vibration xy/gap monitor 3300/16, 86827-01 Rev-a
Bently nevada dual vibration xy/gap monitor 3300/16-11-01-02-00-00-01
Bently nevada pwa79542-01d thermocouple input
BENTLY NEVADA PWA87830-01 REV D PCB MODULE PWB87832-01
Bently Nevada XDCR I/O & Record Terminals/Alarm Relay assy79748-01u 81546-01
Bently NV 88001-01 B 6895661 XDCR I/O Terminal PCB Circuit Board
Bently NV 88001-01 B 6895661 Xdcr I/O Terminale PCB Scheda Circuiti
Berg Propulsion Ab Ek 1140 V 2.1 Interfaccia Modulo
Berg Propulsion Ab Ek 1140 v 2.1 Interface Module
Bergan inc A130476B IAN-Conrad Level Guard level Alarm Monitoring Unit 7913
Bergan inc A130476B Ian-Conrad Level Protezione Allarme Monitoraggio Unità 7913
BERGER LAHR VRDM31122/50LWBOO STEPPER MOTOR 230 VAC
BERGER LAHR VRDM3913/50LWBOO INVERTER DUTY MOTOR 230VAC 6NM 2.25Arms
BERGER LAHR VRDM597/50LVC
BERGER LAHR WDO5-008.15101
BERGERLAHR VRDM564/50LNA
Bernard Controls SQ10 Modulante Valvola Attuatore Per Bruciatore Capacità
Bernard Controls SQ10 Modulating Valve Actuator For Burner Capacity
Bernard Quarter Turn Electric Actuator OAP
Bernard Quarto di Giro Elettrico Attuatore OAP
Bestobell Mobrey MCU201 / MCU200 Liquid Level Control
BESTOBELL MOBREY MSP90-20 LEVEL MEASUREMENT SYSTEM
BESTOOL KANON TK2000CN
BETEC 421304 FI-100-4 VI14 PCB Card
BETEC 421304 FI-100-4 VI14 PCB Scheda
BETEC 421306 FI-100-3 VI14 PCB Card
BETEC 421306 FI-100-3 VI14 PCB Scheda
BETEC Engineering LTD. 419286 FI-100-4 VI13 PCB Card 400878
BETEC Engineering LTD. 421306 FI-100-3 VI14 PCB Card 400878
BETEC FZK050 PCB Card 400880
Betec FZK050 PCB Scheda 400880
Betec Ingegneria Ltd.419286 FI-100-4 VI13 PCB Scheda 400878
Betec Ingegneria Ltd.421306 FI-100-3 VI14 PCB Scheda 400878
BHM Russian Night Vision Device KC204 With Voltage Converter In The Box
Biddle Instrument 220015-47 15KV Dielectric Test Set
Biddle Instrument 220015-47 15KV Dielettrico Test Set
BIHL WIEDEMANN AS-I 3.0 PROFIBUS BWU1567 GATEWAY STAINLESS STEEL SAFTY MONITOR
BIMBA D-11846-A-6
Bindoyen BD8T-SA03 Material Mixing System Injection Machine
Bindoyen BD8T-SA03 Materiale Miscela Sistema Iniezione Macchina
Bindoyen BD8T-SA03 Materiale Miscela Sistema Iniezione Machine
BIODYN DR VCB 012
BIOMEDIC VILP-12 VACUUM PUMP
Bird Electric BIRD Site Analyzer SA-1700EX
Bird Electric BIRD Site Analyzer SA-1700EX IMI-942
BJORGE SMART CHIEF CONTROL MONITOR PANEL
BJORGE STI-PAN-1_3 Backlight LCD Display Card
BJORGE Sti-pan-1_3 Retroilluminazione LCD Display Scheda
BLASTRONIX 232/4S
BLOCK PVUC 24/24-20 BUFFER UNIT 24VDC
BLUE OCEAN SHIELD B0S X12-1100-01 12KW BALLAST COSCO (WEIHAI) CO.
BMI 20M STAINLESS STEEL MEASURING TAPE GAUGE
BNC Autocontrol Oval Gear Flowmeter BH06-0F1-J10 9552
BNC Autocontrol Ovale Cambio Flussometro BH06-0F1-J10 9552
BOC Edwards G1969 Turbomolecular Pompa a Vuoto Agilent
BOC Edwards G1969 Turbomolecular Vacuum Pump Agilent
BOCK 08044 COMPRESSOR OIL PUMP SET
BODINE 33A3BEPM-W4
BODINE ELECTRONIC KC1-26A2
Bollfilter 4.36.2.1 Differential Pressure Contact Indicator
BOLLFILTER BK2200 PROTECTION SYSTEM MAINBOARD RC.AOA.HM1
Bollfilter protection 4.36.2 differential pressure indicator gauge
Bollfilter Protection System BK2200 Control Panel
Bollfilter Protection System BK2200 Controllo Pannello
Bollfilter Protection System BK2200 Pannello Controllo
Bollfilter Protection System BK2200 Pannello di Controllo