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

Assured Automation K36CPFF6SO 36 Series 316 SS, 2-way Ball Valve

Assured Automation K36CPFF6SC 36 Series 316 SS, 2-way Ball Valve

Assured Automation JMPF300SFAF8D MPF Series SS 3-way Ball Valve

Assured Automation JMPF300SFDF8D MPF Series SS 3-way Ball Valve

Assured Automation JMPF300SFEF8D MPF Series SS 3-way Ball Valve

Assured Automation JMPF300SFFF8D MPF Series SS 3-way Ball Valve

Assured Automation JMPF300SFGF8D MPF Series SS 3-way Ball Valve

Assured Automation JHPFNGCSK4A Fire-Safe 2-way Ball Valve

Allen Bradley 1768-L45 Series C Memory Controller USIP

Assured Automation J300FSSF6SO 150F-300F Series 2-way Ball Valve

Assured Automation J300FSSF6SC 150F-300F Series 2-way Ball Valve

Assured Automation NHPL13RK4A High Performance Butterfly Valve

Assured Automation JHPFNGCFB7B Fire-Safe 2-way Ball Valve

Assured Automation NHPL11RK4A-EP420C Butterfly Valve

Assured Automation J300FSSB7A 150F-300F Series 2-way Ball Valve

Assured Automation MHPL61RK4A-EP420C Butterfly Valve

Reliance Electric UBLC3403G Brushless AC Servo Drive USIP

Assured Automation NHPL13RF6D High Performance Butterfly Valve

Assured Automation LHPL63RK4A-EP420C High Performance Butterfly V

Assured Automation NHPW61RF6SC High Performance Butterfly Valve

Assured Automation NHPW61RF6SO High Performance Butterfly Valve

ABB 3HAC10939-8 Robot Main CPU, ABB Main Computer FNOB

Assured Automation K36CPFK4A 36 Series 316 SS, 2-way Ball Valve

Assured Automation NHPW61RF8SC High Performance Butterfly Valve

Assured Automation NHPW61RF8SO High Performance Butterfly Valve

Assured Automation PFKWEPPG FK Series Butterfly Valve

Fanuc A06B-1402-B100 AC Servo Spindle, 4-Poles, 3-Phase, 200-230V FNFP

Assured Automation JHPFNGCFF6SO Fire-Safe 2-way Ball Valve

Assured Automation JHPFNGCFF6SC Fire-Safe 2-way Ball Valve

Assured Automation JMPF150CFEK4A MPF Series SS 3-way Ball Valve

Assured Automation JMPF150CFFK4A MPF Series SS 3-way Ball Valve

Assured Automation JMPF150CFGK4A MPF Series SS 3-way Ball Valve

Assured Automation JMPF150CFAK4A MPF Series SS 3-way Ball Valve

Assured Automation JMPF150CFDK4A MPF Series SS 3-way Ball Valve

NSK 100BAR10STYNDBELP4A Pack of 2 Contact Bearings FNIP

Panasonic AFP7MC64EC EtherCAT 64-Axis Motion Unit

TE-CO RWS40S8 ReLock 8-Station Compact Quad - without Jaws

Assured Automation LHPL13RF6SO High Performance Butterfly Valve

Assured Automation LHPL13RF6SC High Performance Butterfly Valve

Assured Automation JHPFNGCFB7A Fire-Safe 2-way Ball Valve

Optex CDX-L15 Ultra-High Accuracy Laser Displacement Sensor

Assured Automation LHPW63RF6SO High Performance Butterfly Valve

Assured Automation LHPW63RF6SC High Performance Butterfly Valve

Assured Automation KMPF150SFAM MPF Series SS 3-way Ball Valve

Assured Automation KMPF150SFDM MPF Series SS 3-way Ball Valve

Assured Automation KMPF150SFEM MPF Series SS 3-way Ball Valve

Assured Automation KMPF150SFGM MPF Series SS 3-way Ball Valve

Assured Automation KHPFNGCSM Fire-Safe 2-way Ball Valve

Assured Automation K300FCSK4A 150F-300F Series 2-way Ball Valve

Assured Automation K300FSSF8D 150F-300F Series 2-way Ball Valve

Assured Automation K300FSSF6D 150F-300F Series 2-way Ball Valve

Nachi SP-BJ1-015 Cable Assembly BJ1 SF Series FNOB

Fanuc A02B-0098-C065 Operator Interface 9inch PDP/MDI Unit USIP

Assured Automation LHPL61RK4A-EP420C Butterfly Valve

Assured Automation OFKLEPPG FK Series Butterfly Valve

Indramat MHD112D-027-NG0-AN USIP

Assured Automation MHPL13RK4A-EP420C Butterfly Valve

Techniks EHD-716 Mag. Deburr/Polish Machine

Graco 237145 President Pneumatic 2-Ball Piston Pump FNOB

Assured Automation NFKLVPPK4A FK Series Butterfly Valve

Assured Automation KMPF150SFFM MPF Series SS 3-way Ball Valve

Nachi PVS-2A-35N2Q1-12 Variable Volume Piston Pump FNOB

Alpha Wire 25066 Multi-Conductor Cable 18AWG Spool of 1000ft FNFP

Ramco CDX-30A Optex FA CDX-30A Laser Displacement Sensor

Ramco CDX-L15A Laser Displacement Sensor

Ramco CDX-LW15A Laser Displacement Sensor

Ramco CDX-W30A Laser Displacement Sensor

Optex CDX-150 Ultra-High Accuracy Laser Displacement Sensor

Optex CDX-30 Ultra-High Accuracy Laser Displacement Sensor

Optex CDX-LW15 Ultra-High Accuracy Laser Displacement Sensor

Optex CDX-W150 Ultra-High Accuracy Laser Displacement Sensor

Panasonic CDX-W30 Ultra-High Accuracy Laser Displacement Sensor

Optex CDX-W85 Ultra-High Accuracy Laser Displacement Sensor

Optex FA CDX-150A Ultra-High Accuracy Laser Displacement Sensor

Optex FA CDX-85A Ultra-High Accuracy Laser Displacement Sensor

Optex FA CDX-W150A Ultra-High Accuracy Laser Displacement Sensor

Optex FA CDX-W85A Ultra-High Accuracy Laser Displacement Sensor

Telemecanique ATV66D16N4 USIP

Parker PVP3336L221 Piston Pump FNFP

Assured Automation OHPW61RF8D High Performance Butterfly Valve

Assured Automation NHPL63RG High Performance Butterfly Valve

Assured Automation KHPFNGSFM Fire-Safe 2-way Ball Valve

Rexnord PEU3K55 Pillow Block Ball Bearing FNFP

Assured Automation MHPW13RF6SC High Performance Butterfly Valve

Assured Automation MHPW13RF6SO High Performance Butterfly Valve

Indramat MAC112D-0-ED-4-C/130-B-2/WI520LV-S013 FNIP

EZMT-4L20C-E-OUT, 4 Line 20 characters, Tri-color LEDs

Mitsubishi HA-LH11K2Y AC Servo Motor FNIP

Assured Automation HMPF300SFAF6S1 MPF Series SS 3-way Ball Valve

Assured Automation HMPF300SFDF6S1 MPF Series SS 3-way Ball Valve

Assured Automation HMPF300SFEF6S1 MPF Series SS 3-way Ball Valve

Assured Automation HMPF300SFFF6S1 MPF Series SS 3-way Ball Valve

Assured Automation HMPF300SFGF6S1 MPF Series SS 3-way Ball Valve

Fanuc A06B-1402-B100 AC Servo Spindle, 4-Poles, 3-Phase, 200-230V FNIP

Assured Automation OFEWEPXF6SO FE Series PVC Butterfly Valve

Assured Automation OFEWEPXF6SC FE Series PVC Butterfly Valve

Assured Automation MHPW13RF8SO High Performance Butterfly Valve

Assured Automation MHPW13RF8SC High Performance Butterfly Valve

Assured Automation MHPW63RK4A-EP420C Butterfly Valve

Assured Automation OFEWEPXF8SO FE Series PVC Butterfly Valve

Assured Automation OFEWEPXF8SC FE Series PVC Butterfly Valve

Pacific Scientific Instruments R43GCNA-R2-NS-VS-00 6171

Ge Fanuc IC752WFC572-FC Display Station, Model 2050 2357

Mitsubishi MR-J3-CR55K4 Servo Amplifier 3382

Grundfos MTR20-10/2A-W-A-HUUV, Multistage Centrifugal Pump FNIP

Mitsubishi MR-J3-CR55K4 Servo Amplifier FNIP

Assured Automation NFKLEPPF6SC FK Series Butterfly Valve

Assured Automation NFKLEPPF6SO FK Series Butterfly Valve

Graco 237146 Pneumatic 2-Ball Piston Pump FNIP

Assured Automation MFKLVPPB7B FK Series Butterfly Valve

Assured Automation JMPF150SFEK4A MPF Series SS 3-way Ball Valve

Assured Automation JMPF150SFDK4A MPF Series SS 3-way Ball Valve

Assured Automation JMPF150SFFK4A MPF Series SS 3-way Ball Valve

Assured Automation JMPF150SFGK4A MPF Series SS 3-way Ball Valve

EZMR-4L40C-P-OUT, 4 Line 40 characters, RED LED ONLY

Vickers PVB29-RS-20-C-11 Hydraulic Axial Piston Pump USIP

Link Belt PEU3K55 Pillow Block Ball Bearing Unit USIP

Nabtesco hw9381442-b FNOB

Assured Automation J300FCSF6SO 150F-300F Series 2-way Ball Valve

Assured Automation J300FCSF6SC 150F-300F Series 2-way Ball Valve

Fanuc A06B-0275-B400 AC Servo Motor FNOB

Techniks EET-50100 ElectroMag Chuck (20 x 40)

Assured Automation J300FCSB7A 150F-300F Series 2-way Ball Valve

Assured Automation MHPL61RF6SO High Performance Butterfly Valve

Assured Automation MHPL61RF6SC High Performance Butterfly Valve

Assured Automation NHPL11RF6SO High Performance Butterfly Valve

Assured Automation NHPL11RF6SC High Performance Butterfly Valve

Nabtesco RV-450-192.42 Reduction Gear FNOB

Assured Automation KMPF150CFFM MPF Series SS 3-way Ball Valve

Assured Automation KMPF150CFAM MPF Series SS 3-way Ball Valve

Assured Automation KMPF150CFEM MPF Series SS 3-way Ball Valve

Assured Automation KMPF150CFDM MPF Series SS 3-way Ball Valve