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

PR ELECTRONICS 5343B 2-WIRE LEVEL TRANSMITTER

PR ELECTRONICS 5515.2 PROGRAMMABLE LCD/LED INDICATOR 5515 A2B

PR ELECTRONICS 5714A PROGRAMMABLE LED INDICATOR

PR Electronics 5714D Programmable LED Indicator

PR ELECTRONICS 5905 PROGRAMMING UNIT KIT 5905C

PR ELECTRONICS 9116 UNIVERSAL CONVERTER 9116B1 VER 9116-003

PR ELECTRONICS 9116-002 UNIVERSAL CONVERTER

PR ELECTRONICS 9202B2B PULSE ISOLATOR WITH 4501 DISPLAY/PROGRAMMING FRONT MODULE

PR-240AL POWER CONVERTER AC 110/220V DC 24V

PRAXIS 4054 LIPS SERIES HEADING INDICATOR PCB 91.4.540 REV C

PRAXIS 98.6.020.662 DISPLAY MONITOR

PRAXIS 98.6.034.702 INPUT OUTPUT BOARD ID.107 REV.IA

PRAXIS 98.6.034.702 INPUT OUTPUT MODULE ID.110 REV.IA

PRAXIS AUTOMATION 20.2.604.600 PCB CARD 91.6.004.600

PRAXIS AUTOMATION 20.2.605.600 I/O BOARD 91.6.005.600 REV A

PRAXIS AUTOMATION 98.6.030.703 I/O BOARD ID 202

PRAXIS AUTOMATION 98.6.030.703 I/O BOARD ID 209 REV BA

PRAXIS AUTOMATION 98.6.030.703 I/O BOARD ID 210 REV BA

PRAXIS AUTOMATION 98.6.030.703 I/O BOARD ID 218 REV B

PRAXIS AUTOMATION 98.6.030.703 INPUT OUTPUT BOARD ID.101 REV.BA

PRAXIS AUTOMATION 98.6.030.703 INPUT OUTPUT MODULE REV BA

PRAXIS AUTOMATION 98.6.032.702 DIN INPUT OUTPUT MODULE ID 104 REV.DA

PRAXIS AUTOMATION 98.6.032.702 I/O BOARD ID 119 REV DA

PRAXIS AUTOMATION 98.6.032.702 I/O BOARD ID 120 REV DA

PRAXIS AUTOMATION 98.6.032.702 INPUT OUTPUT MODULE REV DA

PRAXIS AUTOMATION 98.6.034.702 I/O BOARD ID 121 REV HA

PRAXIS AUTOMATION 98.6.034.702 I/O BOARD ID 122 REV HA

PRAXIS AUTOMATION 98.6.034.702 I/O BOARD REV HA

PRAXIS AUTOMATION 98.6.034.702 INPUT OUTPUT MODULE REV IA

PRAXIS AUTOMATION 98.6.034.801 24MIXED I/O MODULE REV DHF

PRAXIS AUTOMATION OPERATOR KEYBOARD

PRAXIS AUTOMATION TECHNOLOGY 6010-602 PCB MODULE 95.6.010.602 REV A

PRAXIS AUTOMATION TECHNOLOGY 95.6.010.606 PCB MODULE REV A

PRAXIS AUTOMATION TECHNOLOGY 95.6.010.606 PCB MODULE REV B

Precise Interface Assembly PCS 810 / PCS 810.200.1

Precise Interface Assembly Type: EPC1200tc

Precise Interface Module PCS 810-1

PRECISION DIGITAL PD6000-6R0 PROVU PROCESS METER

PRESSTECH 7611-9440-01 ENCODER CONVERTER BOARD

PRESSTECH 7612-4100-01 PC BOARD

PRESSTECH 7615-3560-03A PC BOARD

PRESSURE SWITCH 1010020

PRESSURE SWITCH 1010026

PRESTO ENGLAND HSS 45-0mm Lead 24

PRESTO HSS Corner rounding cutter 16X48

PRINT ENGINE CONTROLLER PL2 25107

PRINTEC DS ES-TB AA PS2 INDUSTRIAL TRACKBALL MOUSE

PRISMA TEKNIK DI-4 DEFLECTION INDICATOR KIT 730 4624-5

PRIZM 200510-0038 MINI-MUX VIDEO OUTPUT PCB CARD 200512

PRIZM 200610-418-PT MINI-MUX 2 VIDEO INPUT PCB CARD 200612

PRIZM 200610-500 MINI-MUX 2 VIDEO INPUT PCB CARD 200612 REV D

PRIZM MINI-MUX 2 VIDEO INPUT PCB CARD 200610-003B REV D

PRIZM MINI-MUX 2 VIDEO OUTPUT PCB CARD 200620-422 / 200622 REV D

PROAUTO SC-12-24-4S DC/DC CONVERTER 12/24VDC

PROBRIDGE NMEA-BUFFER-PRO-8 PCB MODULE 50549

PROBRIDGE NMEA-BUFFER-PRO-8 PCM MODULE 50549

PROCES-DATA G010N304.B01 IPH TACHO UNIT 1653533-2

PROCES-DATA G010N603.B01 IPH TACHO UNIT 1653530-7

PROCES-DATA G010N604 TACHO UNIT 1653531-9

PROCES-DATA PD 3221 P-NET UNIVERSAL PROCESS INTERFACE MODULE

PROCESS DATA PD5000 P-NET CONTROLLER

PROCESS INFORMATIK TELE-PROFessional (TP) SPS SECURED MODEM PROTOCOL HW VER 1.5

PROCESS INSTRUMENTATION AND WEIGHING SYSTEMS DOCUMENTATION

PROCESS-DATA PD 3100 P-NET INTERFACE DIGITAL I/O DC PROCESS CONTROL UNIT

PROCESSKOMPONENT ROSSING JANSSON ELECTRIC BOOSTER VCC20

Processor Intel Pentium E5800 3.2GHz SLGTG Socket LGA775 2MB Cache

PROCON ADAPTER PROGRAMMING TOOL FOR BOILER CONTROL PANEL

PROCON PROLOGIC PL101 PROGRAMMABLE LOGIC CONTROLLER MODULE

PROCON PROLOGIC PL4RO RELAY OUTPUT MODULE

PROCON PROLOGIC PL8AO CURRENT OUTPUT MODULE

PROCOND ELETTRONICA 452200620 PCB CARD 452240170

PROCOND ELETTRONICA 452200620 PCB CARD 452270200

PROCONICS PR0107060292 JOTUN ANTI - FOULING PCB MODULE

PROCONICS PR0395 ANODE MODULE ISSUE 2

PROCONICS PRO491 PCB CARD

PRODUAL VVA1 WATER LEAKAGE SENSOR

PRO-FACE 3280007-01 OPERATOR DISPLAY TOUCH PANEL

PRO-FACE 3580205-04 OPERATOR DISPLAY TOUCH PANEL

PRO-FACE AGP3750-T1-D24 TOUCH SCREEN HMI 3280024-02

PRO-FACE CA3-USBCS-01 HMI PROGRAMMABLE CABLE

Pro-face Electric Graphics Display PFXGP4311HTAD, Graphics Panel, GP-4311HT

Pro-Face GP2400-TC41-24V / 2880061 / PSE-71-0205 / ETFA PSE Operator Panel

Pro-face GP477R-EG41-24VP | 2780027-01 High contrast amber LCD, touchscreen

PRO-FACE Model AGP3301-L1-D24 Incl Communication Module 3383202 /CA5-PFSALL/

Pro-face Model AGP3301-L1-D24 incl Communication Module 3383202 / CA5-PFSALL/EX-0

PRO-FACE PFXGP4203TAD TFT COLOR LCD DISPLAY

PRO-FACE PFXGP4301TAD TFT COLOR LCD DISPLAY GP-4301T

PRO-FACE PFXGP4301TADW TFT COLOR LCD DISPLAY GP-4301TW

Pro-face PFXSP5600TAD SP5000 Series HMI 12" TFT color LCD, 1024x768 touch screen

Pro-Face PFXST6500WAD / PV: 02 / RL: 03 / SV: 13 / 10" Wide Color Touch Screen

PRO-FACE PS3650A-T41-24V TOUCH SCREEN PANEL 3480801-12

PRO-FACE SP-5700TP HMI TOUCH PANEL DISPLAY PFXSP5700TPD

PRO-FACE SP-5B10 POWER BOX MODULE PFXSP5B10

Pro-face Toch Panel Model: GPH70-LG41-24VP / Type: 098001101

Pro-Face Touch Panel Model: 3180050-01 / *GP2300-SC41-24V

Pro-Face Touch Panel Model: GPH70-LG41-24VP / Type: 098001101

Pro-Face Touch Panel Model: PFXGP4114T2D

Pro-Face Touch Panel Model: PFXGP4203TAD / *24VDC - Rev.: J1

Programming Cable

Promatis S-8 / 8 Channel Electronic Relay / 24VDC-220VAC/8A

Promatis S-8/8 Kanal Elektronisches Relais/24VDC-220VAC/8A

PROMATRIX DYNACORD DPA 4140 POWER AMPLIFIER

PROMINENT 809128 DULCOTEST 4-20mA Pt1000V1 TRANSMITTER

PROMINENT DACA00612010000010EN DULCOMETER DIALOG DACA CONTROLLER

PROMINENT FLUID CONTROLS D1CAD0C11001G220E DULCOMETER 230VAC

PROMINENT FLUID CONTROLS D1CAD0P12111Q220E DULCOMETER 230VAC

PROSOFT 5605-RI0-PDPS A-B Remote I/O Adapter

ProSoft AN-X2-AB-DHRIO EtherNet/IP to Remote I/O or DH+ Gateway

ProSoft ILX34-MBS485 Modbus Serial Module for CompactLogix L1 and Point I/O

ProSoft MVI56-DFCM DF1 Half/Full Duplex Master/Slave Communication Module

ProSoft MVI56E-MCM Modbus Master/Slave Enhanced Network Interface Module

ProSoft PLX31-EIP-ASCII EtherNet/IP to ASCII Communication Gateway

PROSOFT TECHNOLOGY MVI46-MCM MODBUS COMMUNICATION MODULE 1700095 F/W REV 1.03

PROSOFT TECHNOLOGY MVI56 WITH ETHERNET FOR CONTROLLOGIX 1700119 F/W REV 1.03

ProSoft Technology MVI56-MNET Modbus TCP/IP Communication Interface Module

ProSoft Technology MVI69-MCM Modbus Master/Slave Network Interface Module

PROXIMITY 12AD6B ROTARY POSITION INDICATING SWITCH

PRX THYRISTOR S244 - LOT OF 11

PSM INSTRUMENTATION 212/I8/3/6M/G/V TRANSDUCER WITH BALLAST TANK TRANSMITTER

PSM INSTRUMENTATION 260/F17/H32/P3/20MWG/9/IS TRANSDUCER WITH CERAMIC SENSOR

PSM INSTRUMENTATION 260/F17/H32/P3/20MWG/9/IS TRANSDUCER WITH TRANSMITTER

PSM INSTRUMENTATION 260/F17/H4/P3/9/NA TRANSDUCER WITH BALLAST TANK TRANSMITTER

PSS IBS-S PCP MUSHROOM / version: 1.2 / ID 301154

PST-1 LK02909-010

PTP MV-1 PCB CARD E89382 VER 3.0

PU 1319 POWER SUPPLY UNIT PCB PU 13

Pull Cable Switch Siemens 3SE7 120-2DD01, Type 3 , 300 V AC, Switch

PULS DP167.131 POWER SUPPLY

PULS DPD 155.134 POWER SUPPLY

PULS ML100.100