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。

HP - Agilent - Keysight 75000 SERIES C MODEL E8404A High Power VXI Mainframe

OPTIMA OP-900B SL WASH-DOWN BENCH SCALE w/INTERNAL BATTERY, Stainless Steel NTEP

Kinka K41140 1" Hastelloy Ball Valve API 608 Class 150, 290 PSI at 100°F

Sew-Eurodrive SAF57 DRN71M4/BE05HF GEARMOTOR

Murata Switching Power Supplies AC/DC 2825W, 12V, 5VSTDBY, D1U5CS-H-2825-12-HA4C

CMX 68020 CPU BOARD AW 910222, ASSEMBLY 910220-01 w/ CMX 910282 EXPANSION BOARD

Ixia Optixia LSM10GXL6-01 6-port 10GE, single slot LAN load module FOR XL10

JDSU Test Point TS-30 N550-010X Chassis  3x N530-0160 Module Cards

Ixia XOTN Chassis it

IXIA OPTIXIA Gigabit Ethernet XMS SFP/RJ45 LAN Service Module LSM1000XMSR12-01

HP - Agilent - Keysight 75000 Series C Model E1400B High Power VXI Mainframe

Ixia Anue Net Tool Optimizer 5268 CHASSIS ONLY

Ixia Anue Net Tool Optimizer 5260 CHASSIS ONLY

Condenser, A/C Refrigerant, 24"x20"x6", 31,000 BTU, 5/8" in / out.

Ladish 1/2" Hastelloy Ball Valve API 607, API 641 Class 300 Fire Safe

Ixia IXCATAPULT TEST CHASSIS T600

GSE Scale Systems Model 550 Programmable Weight Indicator Scale 200550-00000

RGB Networks Motorola Simulcast Edge Processor SEP48 MPEG2 Decoder DC 48Ch 3x RF

Ixia Anue Net Tool Optimizer 5288 ADVANCED FEATURE MODULE (AFM)

IXIA 1-10 Gigabit Ethernet, Application and Stream Load Module ASM1000XMV12X-01

NORTEL NT0H84DA WMOPA1ELAA MOTR 10G GbE/FC 100G W-5817

NORTEL NT0H84DB WMOPBUOLAA MOTR 10G GbE/FC 100G W-5817

NORTEL NT0H84HC WMOPA1XLAA MOTR 10G GbE/FC 100G W-5817

NORTEL NT0H84GB WMOPA1ULAA MOTR 10G GbE/FC 100G W-5817

NORTEL NT0H84HA WMOPA1XLAA MOTR 10G GbE/FC 100G W-5817

Rexroth 3 Phase Servo motor MSK061C-0200-NN-S1-UP0-NNNN, R911323758

Yokogawa EJA 220 S2 DP Harp Transmitter DZZA12Z3B-97NN/K2/D3/Z

Ixia Optixia OLM1000STXS24 24 PORT Ethernet Load MODULE FOR XL10 CHASSIS

JDSU VIAVI HCU-1500 15-Slot PathTrak CHASSIS

COMM/NET SYSTEMS EDGEPower 8125 Rackmot DC Power Distribution 016-1599-10

ENDRESS  HAUSER Promass 60F Flowmeter 60FS25-AAW00A20A1B 60FS25 For Parts

ENDRESS  HAUSER Promass 63A 904L Flowmeter 63AS02-99900A20A1A, 63AS02 FOR PARTS

ENDRESS  HAUSER Promass 63F Flowmeter 63FS15-99900A20AIA, 63FS15 FOR PARTS

Ixia Optixia LSM1000XMVR8-01, 8-pt Dual Media Gigabit Ethernet Load Module

Leitch ES-2000C ES-2000/3000 Expansion System with 8 cards

8422-50 Memory High Logger 32ch

BROCADE BR-MLX-1GX20-U10G-X2 MLX 20-PORT 1 GBE

Cisco OSM-24GE-WAN for 7600/6500 Series

Sony Storstation LIB-162 AIT Library

Shape Magnetronics LINE TAMER CLT-1000-AAA 8.3 Amp Power Conditioner Regulator

Ladish 3/4" A105 Ball Valve API 607, 608, 641 Class 300 Fire Safe

Yokogawa EJA 220A S1 DP Harp Transmitter DMZA12Z3B-9NN/K2/D3/Z

IXIA Gigabit Ethernet XMS LAN Services Module LSM1000XMS12-01

Harris VTM4140PKG Waveform Monitor OPT 40. OPT SDI-H, OPT A3-OPT 2

Agilent 16802A Motherboard with Intel SL9KM and 1GB Ram M-880-Nitro 00A0 GP

IXIA OPTIXIA LSM1000XMV12-01 12 PORT DUAL-PHY (RJ45  SFP) 10/100/1000 MBPS ENET

CISCO ASR-9922-FAN-V2

Marathon 56T17D3304 Motor

Nokia Fan 7750 SR-7 Enhanced Fan Tray 3HE05180AARA01

IXIA XG-12 NETWORK ANALYZER POWER SUPPLY 942-0032-03

Advantech ACP-4000BP-30CE CHASSIS WITH SERVER

Jiper MX-MPC2-3D-A Network Router Card with 1x MIC-3D-4XGE-XFP-A Module

Ixia Anue Net Tool Optimizer 5288 QSFP PORT MODULE MOD-528X-IFMOD-40G

MAR PM‑48‑18 POWER SUPPLY BATTERY CHARGER

ARRIS VPM2 SWITCH CONTROLLER MSP10009/ASCM1434-A00

Dell Precision Rack 7910 Server Xeon E5-2623 v3 @3.0GHz 16GB RAM DDR4

Research Concepts RC2000A Dual Axis Antenna Controller

Ciena 130-0205-910 ISS3 Broadband Amplifier 25 Fc Zr Connectors LGA1HGJBAA

Scientific-Atlanta 734964 PRISMA II CCU, COMMON CONTROL IT, MODEL-2503

ARRIS CHP-DW00-9191-13-L CHP CORWave DW/SW Optical Transmitter

ARRIS CHP-DW00-9191-10-L CHP CORWave DW/SW Optical Transmitter

Ixia Anue Net Tool Optimizer 5288 CHASSIS ONLY

Ciena 130-0737-910 ISS2 2.5g XMTR-L 194.1 THz module

Ciena 130-0740-910 ISS2, 2.5g XMTR-L 194.25 THz module

Ciena 130-0738-910 ISS2 2.5g XMTR-L 194.15 THz module

Ciena 130-0733-910 ISS2 2.5g XMTR-L 193.90 THz module

Ciena 130-0739-910 ISS2 2.5g XMTR-L 194.20 THz module

IXIA OPTIXIA LSM1000XMV8-01 8-PORT DUAL-PHY (RJ45 AND SFP) 10/100/1000 MBPS ENET

IXIA CFP-TO-QSFP DUAL INTERFACE ADAPTER MODULE 948-0023

ADC RFSM N-MRFSM1-B, 1327625 Module

Arris SW01-1291-06 CHP MAX TRANSMITTER 1291NM 10DB CHP-SW01-1291-06-S

Arris DW01-9193-10-L CHP MAX TRANSMITTER 1291NM 10DB CHP-DW01-9193-10-L

ACTERNA JDSU SDA-5510 HEADEND REVERSE SWEEP MANAGER

NUFERN NU-LSA-5/130-915-3P PRESSTEK SUREFIRE XP AHH08131 CLASS 4 LASER

Arris E6000 UCAM-24096W ARCT02445 Upstream Cable Access Module

Harmonic NSG 9116 Narrowcast Services Gateway R-NSG9116-0G-00-M8-4

Arris CHP-C2-MWV6-16-S 1 GHZ C-BAND MULTI-WAVELENGTH FORWARD PATH TRANSMITTER

NetApp Motherboard Controller Module 110-00136E5, 10GBEE CNA L5410 8GB RAM

Dell R620 (2)E5-2640v2 196GB RAM TWO 100GB SSD iDRAC7 Express

Ixia Optixia LSM1000XMVR4-01, 4-pt Dual Media Gigabit Ethernet Load Module

CommScope TMAT1921B68-21-43 amplifier, twin diplexed PCS / AWS 1-4, 555 – 894MHz

3 ITS EDGE-C0RE ECS4610-50T, EM4626H-XG-XFP

TYAN RIVERBED S8229WP-6B2-RVB MOTHERBOARD DUAL AMD OPTERON 64GB RAM H/S

IXIA OPTIXIA LSM1000XMV4-01 4-PORT DUAL-PHY (RJ45 AND SFP) 10/100/1000 MBPS ENET

Quintech RPS 2455 Series Dual Reddant Power Supply RPS2455QAC000

Quintech RPS 2448 Series Dual Reddant Power Supply

Agilent N2X N5552B 10/100/1000 Ethernet XR-2 Test Card (SFP/RJ45)

Ixia WAVEBLADE WBW1000 WIFI 802.11a/b/g Multi-protocol Network Analyzer

CISCO 76-EST-4TG 4 Port 10 Gigabit Ethernet XFP Card

Dell R620 (2)E5-2620v2 196GB RAM TWO SATA HDD iDRAC7 Express

TRILITHIC VF-5-XX, RF Preselector/Filter 55-880 MHz 75 Ohm

Jiper MX-MPC2-3D-A Router Card  MIC-3D-4XGE-XFP-A  MIC-3D-20GE-SFP

imprimis 94155-57 48MB 5.25" HARD DRIVE

VECIMA CableVista CV1100 EDGE DECODER  CONTROL CARD CV1107  5x OUTPUT CARDS

Arris MW01-1291-13 Multiwavelength Forward Path Transmitters CHP-MW01-1291-13-S

Arris MW01-1291-08 Multiwavelength Forward Path Transmitters CHP-MW01-1291-08-S

Vitrek V5 Scanning Hipot Tester

Arris CHP Max5000 1GHz 1311nm CWDM Forward Transmitter CHP-GFXV-1311-06-S

Arris Transmitter 1GHZ Dual RF RF INPUTS,VARIABLE OUPUT CHP-MWV1-1291-10-S

Arris CHP Max5000 1GHz 1311nm CWDM Forward Transmitter CHP-GFXV-1311-08-S

MAXNET II QMP-1218-40PF ATX AMPLIFIER 1.2GHZ RF A/B SWITCH 2WAY SPLTR F CONN

Arris CHP Max5000 1GHz 1311nm CWDM Forward Transmitter CHP-GFXV-1311-05-S

Arris CHP Max5000 1GHz 1311nm CWDM Forward Transmitter CHP-GFXV-1311-04-S

Cisco OSM-4GE-WAN-GBIC 4-Port Optical Services Module

Jordan Controls SM1530-10-23 Rotary Actuator SM1530-10/200-23-S-X-0-0-2-1P-0

Agilent 16901A Motherboard D915GUX and 1GB Ram

IXIA LM10GE700F1 10 Gigabit Ethernet XENPAK Load Module

TANDBERG E5740 DSNG VOYAGER EVOLUTION 5000

Cisco AS5300 with 1 EACH QUAD T1/PRI  2 EACH DSPM VOICE, 3 CARDS TOTAL

JOINDATA SYSTEMS G486SLC-4 MOTHERBOARD  INTEL 25MHz i486 SX A80486SX-25 CPU

Kramer Electronics VM-1021 1:20 Composite/SDI Video Distribution Amplifier

TELICA PLEXUS Alcatel Lucent LCS 5010 89-0411-A Octal DS3 Switch Module

G158178 Leyb TW 220-150 Turbomolecular Vacuum Pump

Amphenol Telect nrgCONTROL-BT, nrgSMART CONTROLLER

MAGNETEK MG3-1F-4CDD Options PR-S1171 Power Supply

Ixia Optixia LSM10GXM3-01 10 Gigabit Ethernet Load Module

C-COR NAVICOR QUADRANT NODE AMPLIFIER 499.25 MHz NQ25DJTL06C4C1

Pico Macom PMD-4, 8VSB / QAM HDTV RECORDER / DECODER

ARRIS CHP-DDF0-2428-10-S CORWave 3 transmitter

Cisco 15216-MD-48-CM ONS 15216 Mux/Demux Plugin Coupler/De-Interleaver Module

LOT OF 98 Marktrace MR3848 RFID 2.4G Active Tag 2.4 GHz 80 Meter Module Card

Ixia Anue Net Tool Optimizer 5293 SFP PORT MODULE MOD-528X-IFMOD-10G

Arris DW02-9590-13 Max Corwave Forward Path Transmitters CHP-DW02-9590-13-L

Arris DW02-9590-10 Max Corwave Forward Path Transmitters CHP-DW02-9590-10-L

Arris DWV1-9193-12 CHP MAX TRANSMITTER CHP-DWV1-9193-12-L

Arris D1W0-9193-08 CHP MAX TRANSMITTER CHP-D1W0-9193-08-L

BALDOR 35K315-86 3/4HP, 1725RPM, 3PH, 60HZ, 56CZ, DP, F1291 SHAFT 1.35 x 15.75

Standard Refrigeration Co. Verticle Receiver 1.5 Gallon QV-1-1/2, ESP-7

POWER-DC POWER SUPPLY 40515500,3.3-28-15V 8.6-16-35A, HPM5C1C1E1E1H1S240

Rexroth HCS01.1E-W0018-A-03-B-ET-EC-NN-NN-NN-FW IndraDrive Cs Converter

Agilent Model J2300D With Agilent Model J3444A

Acterna / JDSU RSAM-5600 Remote Service Analyzer Module