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。
IBM 6218 IntelliStation M Pro Motherboard FRU:42C1454 WITH CPU AND 2GB RAM
S Tech P35-121-1689 Motherboard SL6EG CPU 512MB Ram CPU Fan
Grass Valley 160102-00F NTSC/PAL TO 270 Mb for SMS 8601
KNOX 160951 CHAM256MB 32 OUTPUT XPNT REV 3
BB Blackboard UTS Automated Fee Machine Printer 1116825
DEC HSJ40 Controller Board 54-22869-01
HP 611793-003 MOTHERBOARD 3.1GHz INTEL CORE i5-2400 SR00Q CPU 8GB RAM
HP 611793-003 MOTHERBOARD 3.1GHz INTEL CORE i5-2400 SR00Q CPU 8GB RAM
CableVista CV1107 EDGE DECODER CONTROLLER CARD
Harmonic HOS7010-22-AS-1 Fiber Optic Switch
Aurora DX3515-46-1-1-AS Digital Transponder, Channel 46
SHUTTLE Motherboard DS81, DS81D000.308
SHUTTLE Motherboard with SR1VK CPU, DS81, DS81D000.310
SHUTTLE Motherboard DS61, DS61D000.203
SHUTTLE Motherboard XH110, XH110G00.102
ATX Maxnet II MPDC, 10326 PSU POWER SUPPLY
Harmonic Lightwaves HPA4710-4-1 HPA4000 Pre-amplifier
LECO Corp 666-530B010, 666-576 DAC/ADC Board
GATEWAY 718142-208 MOTHERBOARD INTEL PENTIUM 350MHz SL2U3 CPU 64MB RAM H/S
Cisco 15454-10E-MR-TXP-C ONS 15454 10GB Multi-rate Transponder Card WMOPCA3CAA
Omnistar AM-OMNI-ALM-5 Fiber Optic Transmitter
Omnistar AM-OMNI-ALM-10 Fiber Optic Transmitter
Omnistar AM-OMNI-ALM-7 Fiber Optic Transmitter
Scientific Atlanta D9709 Power Supply
INTEL DX79TO AA G28805-400 MOTHERBOARD
IXIA IxRave Gigabit Ethernet probe XR1000 870-0081
DELL AA A53824-302 MOTHERBOARD INTEL CELERON 800MHz SL4TF CPU H/S FAN
Synchronous DVB Platform DVB-ORX Receiver
HP / Agilent / Keysight 75000 Series C MODEL E4861A 2.67 Gb/s DATA GEN./ANALYZER
MRV Reddant Power Supply for NC316-4SRPSAC-R
Gateway 4000676 ATXSTF Fed Pro 933m PC Sock 370 Motherboard A19243-404 CPU RAM
Brocade BR-MLX-MR2-X ROTTWEILER Management Module BR-MXLE-16-MR2-X-AC
FANUC A20B-8001-0922 Inverter Board
Dell 0WF887 MOTHERBOARD iNTEL CELLERON SL7HK CPU 2GB RAM
RADCOM PA-FEP-GenFep REV: C.01 fiber acquisition card
ASUS PTGD1-LA REV 1.06 / HP 5187-7617 Motherboard 3.0GHZ PENTIUM 4 1GB RAM
ASUS PTGD1-LA REV 1.06 / HP 5187-7617 Motherboard 3.0GHZ PENTIUM 4 1GB RAM
EGT EG Technology Processor Board 002Pro-01-05
BCM SQ575 MOTHERBOARD INTEL PENTIUM MMX 166 MHz SL27K CPU 16MB RAM H/S/FAN
VARIAN NMRI 0190478902 REV. B SCHEMATIC 0190342300 REV. C SPLITTER
CISCO EDR PRX85 Prisma HD Rx Receiver Module
RS 1125.5190.02 VECTOR SIGNAL GENERATOR MODULE OPTION SMIQ-B20 1085.5250.96
GRASS VALLEY 8900 NETWORK INTERFACE MODULE 771-0121-03A
GRASS VALLEY 8900 NETWORK INTERFACE MODULE 771-0121-02A
Reflex Photonics Single 40G ENET, CFP Gen 2 FiberOp Transceiver CP-X04-C11801-02
AVT Marlin F033C L1A--3.0 CellaVision DM8 Color Camera 1/2 CCD 74fps FireWire
Sony DEC-42 VIDEO BOARD 1-625-947-13
Sony RP-57 Board 1-640-034-14
HARMONIC PROSTREAM 1000 CARD HPC-IOM-ASI-0001, 095-0212-001L
IXIA WF1101 WaveDeploy WIFI 802.11 a/b/g/n
DELL 0PTTT9 Motherboard SR0L8 CPU 16GB Ram
DELL PowerEdge 0H0768 MOTHERBOARD INTEL XEON CPU256MB RAM
Dell 0U7084, LGA 775/Socket T, Intel Motherboard PENTIUM 4 - 3.60GHz 4GB RAM
Synchronous DVB Platform DR-PS-110 POWER SUPPLY SHINDENGEN HY05020GN
AIR-CON C-DA75 PNEUMATIC ACTUATOR NUMBER 530075
HP Procurve 2824 24 Gigabit Ports 10/100/1000 External Managed Switch J4903A
HP Procurve 2824 24 Gigabit Ports 10/100/1000 External Managed Switch J4903A
SuperMicro X7SPA-H MOTHERBOARD WITH Intel Atom D510 CPU AND 1GB RAM
Alcatel Lucent 3HE03661AAAA01, 7750 SR-7 100A PEM-3 PSU Power Supply
E52914 MOTHERBOARD INTEL CELERON 266MHz SL2SY CPU 256MB RAM H/S
Kontron cPCI-DT64 - 6U Compact PCI 64 Bit DUAL PENTIUM III 66Mhz 1 GB RAM
KENWOOD TK-30(D) CONTROL HEAD X54-3110-20
Motorola Iden Base rectifier CTF6220C
4 - IXIA 12" , 50 OHM IXVERIWAVE SMA12", RF CABLE, SMA, 12" R 980-4017
EMACS M1W-6500P 500W SWITCHING POWER SUPPLY
EMACS M1W-6500P 500W SWITCHING POWER SUPPLY
AcBel SGC002 Server Power Supply 5.1V @ 40A / 12V @ 60A / 928W
Kramer BC-1411 1:10 Video / Audio Distributor
HP Z400 Motherboard WITH XEON W3550 6GB Ram 586968-001
HP Z400 Motherboard WITH XEON W3550 6GB Ram 586968-001
SPIRENT COMMICATIONS ACC-9001A POWER SUPPLY S1250C1-VV
ASUS A7V-VM(MOCHA-GLA)/HP (R3.04) CPU 1GB RAM
Dell PowerEdge 600SC 05Y002 MOTHERBOARD 256MB RAM
Grass Valley 066850 TEN-XL 10x1 XPT CONTROL Card 066850-230
PATH 1 CX1000 PROFESSIONAL IP VIDEO GATEWAY
ASUS TX97-LE Motherboard INTEL PENTIUM 200MHz SY060 CPU 64MB RAM H/S FAN
Sony AU-148 Board 1-640-035-13
Telica Plexus 9000 DS1 I/O CARD Module 89-0360-A
ADVANTECH PCM-8060 industrial motherboard 1155 CPU USB 3.0
Aurora AR3001 Return Receiver AR3001-AS
Aurora AT3009G Transmitter AT3309G-A-2-AS
ATX Maxnet II QMP1000-34GP RF Amplifier
Aurora AT3009G Transmitter AT3309G-N-1-AS
Intel A48527 MOTHERBOARD INTEL 1.7GHz PENTIUM 4 SL5TP CPU
Aurora Networks Digital Receiver DR3021-AS
GATEWAY 4000431 718142-208 MOTHERBOARD with PENTIUM II CPU
ASUS P7P55D-E LX Motherboard with 3.20 GHz i3-550 6GB Ram H/S and Fan
ASUS P7P55D-E LX Motherboard with 3.20 GHz i3-550 6GB Ram H/S and Fan
Delta Energy Systems AHF-2DC-2500W Power Supply
KINEMETRICS 110467, 110465 CIRCUIT CARD ASSEMBLY
Cisco NPE-G1 CMTS MODULE uBR7200-NPE-G1
ARRIS / MOTOROLA 542332-001-00 APEX1000 FAN MODULE
RACKMOT EQUIPMENT RERP-303 PSU
Sony TBC-23 TBC-24 SYS BOARDS 1-648-542-13 / 1-648-543-13 for SONY BETACAM
HP Agilent 75000 Series C Model E4805A Central Clock 660 MHz VXI MODULE
TM2-SFPPXFP MRV LambdaDriver 8Gbps FC Dual Transponder Card
MAGNA-TECH MOTOR 34101-33-120-02
FORTEL DTV INTEGRITY 300 FS 514 REV 502A CARD
ISIS GROUP S8400 VIDEO 8 X 4 XPT 04-8403 CARD
Kepco TDK ERX12-10 Power Supply it
Power-International Series HD12-6.8-A Power Supply
INTEL A19243-205, 4000622 MOTHERBOARD SL3XY PENTIUM III CPU 128GB RAM
097UJY Dell Pentium-Iii System Board INCLUDES CPU 512MB RAM
Scientific Atlanta 565437 BNC Modulator INTERFACE 9803B
8 RADIOS IN TOTAL - Motorola 3 Piece Lot, 2415B-MRCE AND 5 PIECE LOT MD200R
TRIGEM 107924, 301143-5077958 MOTHERBOARD WITH CELERON SL3A2 CPU 256MB RAM
TRIGEM 107924, 301143-5077958 MOTHERBOARD WITH CELERON SL3A2 CPU 256MB RAM
MRV Reddant Power Supply for NC316-4SRPSDC
RGB Networks 300-0003-05 RF Modulator Card
Scientific Atlanta 546280 DCDC INTERFACE 9803C
Scientific Atlanta 546280 DCDC INTERFACE 9802
Acme Packet 002-0202-01 REV:1.11 GB Ethernet OPT Interface Card
CATAPULT COMMICATIONS SUPER 19051-0777 POWER PCI NETWORK BOARD/CARD
CATAPULT COMMICATIONS SUPER 19051-0359 POWER PCI NETWORK BOARD/CARD
KONTRON COMe 16GB RAM i7-3555LE 2 x 2.5GHz heat sink 38024-0000-25-2
EFRP-2302A, ETASIS 217850/01, 300W 300W reddant power supply
Dell PowerEdge 015TH9 LGA1155 Socket DDR3 Motherboard XEON E3-1230 16GB RAM
MSI 785GTM-E45 MOTHERBOARD 3.2GHz AMD ATHLON II ADX2600CK23GM CPU
ALCATEL HSM-2 carrier card W/ 2x ATM2-155-SAHI daughter card
ALCATEL ESM-100C-12 Omni 12 port 10/100 RJ45 Card
EPOX EP-8KTA2L SOCKET A MOTHERBOARD WITH AMD Duron AND 768MB RAM
Micro Star MS-6557 MOTHERBOARD
LENOVO 64Y7517 MENORCA PASS 1.45 MOTHERBOARD 3.06GHz INTEL SLBEY CPU H/SFAN
Maytag Washer Electronic Control Board AND Display 62909050, 6 2909050
Dell 01H315 E210882 Rev. A00 MOTHERBOARD INTEL P4 1.8 GHz SLV5J CPU H/S
Abit NF-M2SV Motherboard 2.5 GHz AMD Athlon 64 X2 4200 CPU
MSI A78M-E35 Motherboard 3.7GHz AMD Athlon X4 FM2 AD860KXBI44JA CPU
MSI A78M-E35 Motherboard 3.7GHz AMD Athlon X4 FM2 AD860KXBI44JA CPU
Sony DM-56 Video Recorder Board 1-622-545-16
HP 717372-002 MOTHERBOARD 3.6GHz INTEL i7-4790 SR1QF CPU