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。

AUTOMATED LOGIC LGR250 CONTROL MODULE 10/100 BaseT ETHERNET PORT E1

OVENTROP OV-DMC 2 COMPUTERIZED DIFFERENTIAL PRESSURE METER FOR FLOW MEASUREMENT

Siemens FCM7213-Y3 / S54400-B149-A1

EOLITE PCBA 225151 Rev. B 225150/A Board

HIRSCHMANN CSE 2000 GENERATION 2 CONTROL PANEL CHD  S2/ 741-276-001/01

Honeywell P7620C0010A Pressure Sensor

CP971-SA3 79H1A / CP971-3 79H1A / 79H2A

 ALLEN BRADLEY 1756-0B16D  FW 3.2 ControlLogix 16 Point D/O Module

SCHNEIDER ELECTRIC T200 RTU COM CT00002-03 /CE00002-03 FS MODBUS

ABB SPAD 346 C3-CA REV.B STABILIZED DIFFERENTIAL RELAY- Without Any Accessories

HIMA F 7133 Power Supply Accessories 98 4713302 REV 01

EndressHauser 50098300

Automatic Systems CO79134 with ABB ACS55-01E-04A3-2

HIMA F 3330 DIGITAL INPUT MODULE 98 4333102 REV 53

PFC_PSDR_P / 11-097500-02 / E.12.4162302-02 Power Supply Printed Circuit Board

INV_PSDR_P / 11-097800-02 / E.12.4162402-02 Power Supply Printed Circuit Board

CLIPSAL L5512RVF 12 Channel Voltage  Relay / L5512RVFP

Walchem WBL600HSNAN-AN W600 Series Flow Controller -without accessories

YOKOGAWA EC401-11 S3 BUS COUPLER MODULE -  WITHOUT

Parker HID5CS/S4 Hi Drive

Teknic SST-1500-ACX Servo Drive

EATON CUTLER-HAMMER CPS160400YAA Clipper Power System - Surge Suppressor

LEVITON SAPHIRE 7' TOUCHSCREEN CAPACITIVE TOUCH TS007-001

Lenox Instruments Autoscope

Honeywell BC7000L-1000 MicroComputer Burner Control System 120V 60Hz

ABB TZIDC-200 Positioner V18348-1011120011

RIKEN KEIKI GX-6000 GAS DETECTOR BUL-6000-WITH BROKEN PART  WITHOUT ACCESSORIES

WOODWARD EASYGEN 2000 | EASYGEN-2500-5/P1 Genset Controller P/n:8440-1884 Rev. A

LAMBDA Alpha 1500W Part No: H00133 Power Supply

LION ALCOLMETER SD-400 Hand Held Breathalyser Real - Without Any Accessories

ADV151 YOKOGAWA ADV151-E60 STYLE S2 DIGITAL INPUT MODULE W/ ATD5A-00 S1-W/ DENTS

 YOKOGAWA ADV151-E60 S2 WITH ATD5A-00 S1 DIGITAL INPUT MODULE

Schneider Electric 140CPU67160 SV: 2.5 Hot Standby Controller Modicon Quantum

Schneider Electric 140CPU65160 SV: 2.6 Modicon Quantum - with Broken Part

WESTERMO L210-F2G ETHERNET SWITCH 3643-0105 L210F2G

Grossenbacher Systeme AG Touch Panel EP-370-151-000

Pro-face Touch Panel FP3900-T41-U MODEL 3582701-01

SATCHWELL MN-LCDP-100 Management Controller

LEDEX 172936-001 RELAY

FIREX-UK FX102A Conventional Fire Alarm Control Panel

Walchem Iwaki WDS600HSSNM-NN Disinfection Controller W600 Water Treatment

PL4 AXL15w26-AS2648 / SE2231 REV.1 PANEL BOARD

MIRCOM NP-6109 R.4 FIRE ALARM SUB-ASSEMBLY 3PBL /NP-7685 REV.01

Delta Electronics CZ056-60437 Switching Power Supply

COMSYS SCC2-P3 CONTROL COMPUTER WITHOUT ANY ACCESSORIES

Solartron Metrology SI SERIES METEK

BENTLY NEVADA 3500/32 4 CHANNEL RELAY MODULE PWA 125712-01M

ALERTON AL-RS4 4 AO,4 RELAYS,2 TRIACS HONEYWELL ALERTON BUILDING

ABB G3HP HENF 436861P104 / HENF 331132R0021 / HENF 436861P201 DSP Module

COPLEY CONTROLS SERVO DRIVER ACCELNET 800-1579E-  WITHOUT

OMRON SYSMAC CS1D-CPU65H PROGRAMMABLE CONTROLLER- WITHOUT

Mircom NP-6109 R.4 / FPT/1296 / MD-1210 / MD 819 FIRE ALARM BOARD FOR FR-320-R

TRICONEX MODULE HR DI3311 24v

ABB YSO01-DC Outdoor Station 2TMA010010N00001

ABB SNAT7261QCP/ SNAT-7261-QCP / Main Interface Board

SIEMENS 6DS1411-8DD TELEPERM PLC-S CLOSED LOOP MODULE

Schneider Electric 140CPU65160 Modicon Quantum - Missing Front Label Cover

SIEMENS 575-033270 REV.5 REMOTE PRINTER MODULE RPM- INCOMPLETE ACCESSORIES

SCHNEIDER ELECTRIC ACE850FO 59659 100FX BASE TCP/IP INTERFACE W/O ANY ACCESSORY

BALDOR KPD-KG840-10 Numeric keypad

MOOG G771K202A ELECTRO HYDRAULIC SERVO VALVE

SIEMENS QBE61.3-DP5 Differential Pressure Sensor

EATON 4A55765H24 MAIN DISPLAY BOARD CE16196H01- WITH RUSTY PART/ CASE

Autel MaxiDas DS708 AUTOMOTIVE DIAGNOSIS  ANALYSIS SYSTEM

Pump Intelligent Controller

AWEX CM-NET CBS Central Battery Systems with Slight Dent on the Screen

GRWL Multi-Pump Booster System Watering Timers and Controller - NO ACCESSORIES

SIEMENS 6DS1511-8AA Teleperm M Interface Module

Atlas Copco 2230 0068 00 MK5 GATEWAY PPBE0660 AIR Control Panel

AMG 4784 | 8 CH Video RX  DATA | Power 12-18V dc.

AMG 4783 | 8 CH Video TX  DATA | Power 12-18V dc.

SIEMENS C98043-A1400-L4 / C98043A1400L4

TDK-Lambda SWS1000L-48 Power Supply

Satchwell MMC4701 Keypad Controller Control Panel MMC 4701

5LI Digitrip 520 Trip it 70C1449G01 EATON CUTLER HAMMER

Delta Tau Model: ACC-ES-K and SERI-8_Plus Main Board

INRITSU KEY 239U61069 / 232U61101 CIRCUIT BOARD

AREVA MVTT14R1NC0751E CONTROLLER

NORATEL MP2-1

BOLLFILTER Protection Systems 60040331 Rev.1 BK2200 Mainboard

Trimble 232 GPS Receiver Part No: 60232-50 - WITHOUT ANY ACCESSORIES

Korenix JetNet 4508f-sw V2 Without Cable

SEL 311C / 0311CO1H2425461 120/230V 50/60Hz PROTECTION AND AUTOMATION SYSTEM

KLOCKNER-MOELLER ZM 12-1000

ROSEMOT 1151-GP6E12Q4 Pressure Transmitter

VIESSMANN Mischerkreis 5340 483-02 VITOTRONIC 200 Typ KW5

23WT25 ABB 1KGT012400R0001

Roche Reflotron Plus Dry Chemistry Analyzer - TRIED  

ABB SNAT7261SCP / SNAT-7261-SCP / Drive Board

Aurora DXP-62 / 6x2 / 1920 X1080 Presentation Switcher Scaler

PHOENIX CONTACT DVG-CPC5015 038-HW AF.00 CPC 5015 PM CO FOR PARTS

GROENEVELD Speed Limiter GINA 96803 SLP WITHOUT ACCESSORIES

KIKKOMAN C-100N LUMITESTER High-Sensitivity Luminometer for ATP Measurement

Schneider Electric OP4281DB Control Board OJ-OP4281DB

Carrier CEPL130333-01 Data Collection

NUS INSTRUMENTS LOG2000-724-1/NUS-A050PA-1 REV.0

EDWARDS APS6A Fire Alarm Power Supply

Phoenix Contact FL MGUARD RS4000 TX/TX VPN

ELECTRONSYSTEM TYPE GMD216 / SF6 DENSITY GLI/LCD- WITHOUT  

LINCOLN ELECTRIC DC400 CONTROL BOARD G2588-2 PCB MOTHER BOARD -  WITHOUT

LUTRON QSE-CI-DMX Control Interface GRAFIK Eye® Systems PELV (Class 2:USA)

BACVIEW2 05501 Display Programmer

Max Stegmann GmbH D-7710 / AG 101 / 4J1XV3941500 / 512 X 16 -  ONLY  

SATCHWELL MN-LCDP-100 Management Controller-  WITHOUT

Beyerdynamic 725706 Delegate Microphit W/O ACCESSORIES

EndressHauser PMC41-RE11C1CC1M1 Pressure Transmitter E1017f01020

INSPECTION CAMERA PROBE WITH 30M CABLE- WITH DAMAGED CABLE  WITHOUT ACCESSORIES

AAI143 YOKOGAWA AAI143-HE0 STYLE S1 ANALOG INPUT MODULE WITH ATK4A-00 S1

CIRRUS RESEARCH CR:822B SOD LEVEL MEASUREMENT METER

PROSOFT MVI56-PDPMV1 F/W 1.03 COMMICATION MODULE W/O ANY ACCS.

QEL Model: Q8-CH4-100L-0-A Gas Transmitter Sensor Q8-CH4-100L-O-X Q8 Series

SCHNEIDER ELECTRIC LSS5500NAC V1.0 C-BUS NETWORK AUTOMATION CONTROLLER

Yokogawa LX100 x DSL Loop Tester 703910 -M-2 - For parts or not working

MOX 603 Digital Input Module 24VDC| MX603-0108-113 /603 IO BASE-RACK MX603200701

Matsushita Message Relay Circuit Board Signal System Type SX

WESTERMO L210-F2G ETHERNET SWITCH -  WITHOUT

Schneider Electric DALIKNX4CH KNX-DALI GATEWAY 4 CHANNEL 1849 W/O ANY ACCS.

FANUC A05B-2301-C375 TEACH PENDANT

520ADD02 ABB 1KGT024300R0001

T8233 Rockwell Automation PLC Module

MITSUBISHI MR-MG30 SERVO DRIVE -

GENERAL ELECTRIC DS200SHVMG1AFE

ABB S900 / AI930B ANALOG INPUT 3KDE1755I2L9300

Yokogawa SAI143-H03-S2 Analog Input Module

Fanuc IC693ALG223D INPUT ANALOG 16PT CURRENT

Honeywell FSC CC 02 Board -  ONLY   

ROCKWELL AUTOMATION AADVANCE 9432 AI ANALOGUE INPUT MODULE T9432-WITH DENTS

HIMA F 3236 DIGITAL INPUT MODULE 98 4323602 REV 05 F 3236 Si

CI520V1 ABB 3BSE012869R1 PR:C COMMICATION INTERFACE (BROKEN FRAME)

BWO Electronics NG8 083547 Type 900-1 083580