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。
HAUG RI 7201 100 04.7201.100 Ionizer (IN24S2)
ELEKTRODEN PT100/NTC JUMO 01414926 (IN10S3)
NETSTAL RVN 110.240.7129B CIRCUIT BOARD (IN34S3)
SICK WL12-3P2431 1041436 PHOTOELECTRIC SENSOR (R2S7.7B1)
KOGANEI F-DAVP125-24W PNEUMATIC DIAPHRAGM VALVE (R2S10.3B1)
HAVEN NHD-7.0-800480EF-ATXV DISPLAY (IN11S1)
SMC CDQMB32-75 CYLINDER (IN19S2)
SMC ZM131H VACCUM VALVE(BR6.3B6)
TURCK BI10R-W30-DAP6X-H1141 Proximity Switch Sensor (IN11S1)
AGILENT 5075-0446 Cable Shielded Vancom Y Ext (R4S10.3B2)
VARIAN 03-935717-01 393571701 ASSY CABLE INTERFACE (R4S11.3B1)
KEYENCE CZ-V21AP DIGITAL SENSOR W/ CZ-H32 SENSOR (R3S2.2B1)
KEYENCE CZ-V21AP DIGITAL SENSOR W/ CZ-H32 SENSOR (R3S2.2B1)
ZOOM TECHNOLOGIES 1983-2925-00-00N-0188 PCB BOARD (R2S3.8B1)
LUCENT TNT-SL-48MODV3-S-C 0800-0481-052 REV B MODEM CARD (BR5.6B6)
COSEL R100U-5 Power Supply (BR2.5B2)
PHOENIX CONTACT 2800778 W/ 2800774 SURGE PROTECTOR (BR2.6B1)
KEYENCE EM-014P PROXIMITY SENSOR (U11..3B1)
BI TECHNOLOGIES L091S472LF RESISTORS QTY: 1000 (U7.1B2)
CONTEC PIO-16/16RL(PC) PCI CARD (IN7S3B1)
CYLON UC 16DI CCU1601 UC01/1688
ALLEN BRADLEY 1756-IB32/A H01 96251077 A01 INPUT MODULE (RS5.4B1)
INTERNATIONAL POWER SOURCE PU65-12 POWER SUPPLY (IN10S2)
ALLEN BRADLEY 100-PWNM23M MCS WIRING KIT 20PK (IN4S1B4)
CCS America HLC-165R HL CONTROLLER ( (IN19S1B3))
CONDOR 02-31774-0001 REV E POWER SUPPLY (R1S8.5B1)
CONDOR 02-31774-0001 REV F POWER SUPPLY (R1S8.5B1)
CONDOR 02-31774-0001 REV R POWER SUPPLY (R1S8.5B1)
CONDOR 02-31774-0001 REV M POWER SUPPLY (R6S9.5B1)
SX RT-610-20R BEAM SENSOR
50 PCS OF PHOENIX CONTACT Base strip - GMSTBVA 2,5/ 5-G-7,62 - 1766806
2 PCS OF PHOENIX CONTACT PSC 1,5/ 3-M-PE 1848122
15 PCS OF IDT MK3771-17RLF INTEGRATED CIRCUIT (IN38S3B1)
Mylex DAC960PG/PJ Series Ultra SCSI RAID Disk Array Controller 635016-01
VACCON VP00-60H VACUUM PUMP ((IN19S3B2))
PHOENIX CONTACT 2766782 MCR-SWG/I-DC CONTROL DISPLAY
CTS CTS-10303 PLGER SAPPHIRE EQUIV: Agilent 5063-6586 (R4S11.2B3)
SIEMENS 3RT1034-1BB40 CONTACTOR
BERNSTEIN KCN-R34NS/030-KLP2 PROXIMITY SENSOR
SIEMENS 6ES7132-4BB00-0AA0 MODULE
090527-P02-006 94000-01539-0B3IU E99006 BOARD TYPE2 01539 REV B1
CHIRON DIAGNOSTICS 117154 REV J Board Advia Centaur XP (R1S1.5)
GMS INC STC-SQP2N MOTION CONTROL DRIVE (R4S4.3)
TEL TOKYO ELECTRON 3D08-000020-12 TYB514-1/IO48 3D81-000020-V3 PCB ASSY (IN36S1B
HITACHI 30V4 GAS SPRINGS 2/PK (R1S9.7)
CHERRY ML4400 G84-4400LPBGB-0 /09 PS/2 KEYBOARD (BR5.2)
Mini-Circuits ZEDC-15-2B Coaxial Directional Coupler ( pieces) /
YASKAWA SGDS-02A12A SERVO PACK W/ CABLE (AGILENTPALLET)
SHINKO LPCN-2A-1 SBX08-000040-11 SCE93-100036-C1 INTERFACE BAORD (R3S8.2B2)
OMRON 3A SPST-NO 5VDC RELAY G5NB-1A-DC5. Lot of 100 pieces.
A.U.K. MULLER 1.017.126 24V SOLENOID VALVE (IN30S2)
IR COMPUTER LINK ACT-IR220LPLUS ACTISYS IR WIRELESS INTERFACE (IN31S2)
MARTINS TB40L100 2012 3/4 Taperlock Bushed Timing Pulley (R5S3.3)
SMC SY7440-5DZ-Q SOLENOID VALVE (IN36S2)
ALLEN BRADLEY 1771-HSN/B IMC-120 FW 1.05 90773706 SERVO CONTROLLER W/ 9072
ABB DS201C20A30 2CSR255140R1204 CIRCUIT BREAKER (R4S2.3)
EVCO FK401AC3E001 power supply(IN32S2)
NICHIGOH RO-FLEX 3000FS A01V2V5-F COM CABLE W/ JAE DE24657 (BR6.3B3)
SVF SB76666ATETO05 1/2" CLEANFLOW S/S EXT TUBE OD TFM SEATS TFE SEALS (R4S12.
TOKYO ELECTRON 071-001986-1 (ES) / KURDA C GREASE GENERATING GREASE FOR BALL SC
BRANDED XC6G-037211-AR01 10-PIN MALE - FEMALE 43FT CABLE (R4S8.4)
OMRON XW3A 8-PORT CONNECTOR CORDSET HUB (BR2.6B3)
NITRON OC-7OX-V-512 N-05-1022-02-0 OXYGEN SENSOR (R6S0.4B1)
30-0004-0302 REV 1 37-0006-0301-0 CONTROL CARD W/ X2 HB56A49BR-7C (R4S2.1B1)
BOSCH 4998599814-A10-V4 CARD (R3S10.3B2)
EUCHNER TP3-2131A024MC1706 084281 SAFETY INTERLOCK SWITCH (IN17s1)
EDWARDS D37272000 Dry Pump Control Module (R5TROLLEY.5B3)
HAAS-LASER KUHLG 2 18-06-18-00 18-06-18-AH MODULE (R1S1.8B2)
HAAS-LASER 18-13-12-AH V1.4 CIRCUIT BOARD (R4S9.1)
BALLUFF 0532HU SENSOR 3/PK (IN26S2)
SIEMENS J31070-A5613-F002-B1-85 A5E00185495 A1 (IN34S3)
ASYS ELREST 1082055 MOTOR CONTROL (in4s2)
MULTI TECH SYSTEMS MT200A2E ETHERFAX A2E (br1.2b6)
NETSTAL RPC 110.240.5328 110.240.5328F COMPLETE BOARD (R5S10.2B2)
SMC MXS12-50 PNEUMATIC SLIDE TABLE (R1s5.7b1)
SICK 6028442 WF120-60B410 SLOT SENSOR (R2S7.7B2)
JIPER 740-031469 01 LX SCP6G44-J6-AWE TRANSCEIVER (in25s3B2)
PepperlFuchs NBBO.8-4M25-E0 SENSOR 3/PK (IN21S1B3)
OMRON E3S-CL1 2M PHOTOELECTRIC SENSOR (R5TROLLEY.2)
SMC VQZ332-5L-02 SOLENOID VALVE (IN9S2)
TDK 73K321L-IH IC 12/PK (R5S5.4B2)
OMRON E2E-X2D1-M1G DC PROXIMITY SWITCH (IN3S2)
ABB DS201B20A30 8012542655701 CIRCUIT BREAKER (IN20S2)
AERA 0190-34212 MASS FLOW CONTROLLER (rbd2.1b5)
BRADY 244824 SIM TER-13 21 SHEETS 1134 LABELS IN TOTAL (U2.4B3)
AGILENT E5515-60211 POWER BOARD ASSY (IN25S3B1
FANUC PLC Rack IC693CHS391L
VARIAN CP10038 CHROMSEP RED 12mm 50/pk (R4S10.3B3)
NORTEL NTRX50FE 03 ENCEGU0AAA FAN TRAY MODULE (RS5.3)
Aluminium Thermal Heatsink 6kg 380x200x70mm. /
Danfoss ADAP-KOOL AKC 115A
SMC PFM303-M DIGITAL FLOW SENSOR (R3S4.5B3)
CEGELEC FAN TRAY W/ X3 EBMPAPST 4656N 230V 19W FANS (RBD3.1)
1 LOT OF 1 PIECE 3M Photodyne INC. 2285XQ
AIRCOM D4V-V1 SQ96152 Pressure Transducer (BR2.2B6)
AGILENT E5515-60410 E5515-60410-0100-79-200432-07149 Analog Backplane Motherboar
PLYMOUTH 11042-3 REV B MOTHERBOARD W/ 682141-600 HEATSINK W/ 8C.F1DD2.LR10B W/ 6
MURATA GRT188R61C106KE3D 16VDC 10UF MULTILAYER CERAMIC CAPS 1000/PK (R4S8.1B2)
SMC MXS12-40A PNEUMATIC GUIDE (U11..3B2)
BERU PWM- VOLTAGE ((R1S2.8B4))
REXROTH R162222220 CARRIAGE (IN32S1B1)
CONDOR XPFM201A-101 POWER SUPPLY (R3S13.3b2)
ERING IRON TIP 10 per pack
ARTESYN HP NFS650-9630PE 0950-3123 650W POWER SUPPLY (R2S12.2)
NORTEL NTFW19BA REL 08 CARRIER CARD BOARD (R4S2.1B1)
EMOTIONTEK MDU2U3PDA CONTROL BOARD (IN31S3)
XP POWER ECM100UT32 PSU 5V,24V,12V, 100W Open-Frame Power Supply
SCHMALZ VS-V-D-PNP VACUUM SWITCH (R5S1.5B2)
pack of 10 ComProtect 2/1 CP BI180A1 LSA-PLUS Disconn
1 8 pieces FCI Connector 88951-101LF
1 Lot of 80 Pieces Toshiba 74HC4094AF
1 Lot of 750 Pieces ST Micro HCF4013 IC
1 0 ELNA RJ3-160V101M OR 97419575KE
1 72 Pieces Tyco 390261-3 Socket
AgilentVarian 12234042 SS Needle Tip In Polypro Enclos,25pk
1 Lot of 98 Pieces Vishay SI4842DY IC
1 LOT OF 1 PIECE PHD SA022X1/2
1 LOT OF 977 PCS APEM MJTP1138F
17 PCS OF NXP TDA8741H Satellite sod circuit
1 PCS IEH HRM080MEE1K00A020
1 0 PCS Schurter 0034.1010
TYCO 445159-1 LGH RECEPTACLE (U2..6B2)
1 Reel of 1000 Pieces Crystal 30,000MHz 20pF, 40 Ohm, -40 to 85C
SICK FR2-122B 1016268
OMRON E3S-AT11 PHOTOELECTRIC SENSOR
PEPPERL FUCHS 089927 NBN8-18GM50-E2-V1 Y89927 INDUCTIVE SENSOR
PEPPERL FUCHS 037338 NJ4-12GM40-E2-V1-Y37338 INDUCTIVE SENSOR
MYOTOHU MVS-030-A B VACUUM SENSOR ((IN19S3B2))
CYCLMicrosystems PCI 738 A 270-0738 Card (PCA-5160-00) (R2S3.8B2)
NAIS AEL5417PS LC4H-PSV-R6-AC240 ELECTRONIC COTER (R2S5.8B3)
11 PCS OF Crystal Oscillators DFN14H-27MHZ ( (IN37S1B1))
55 PCS OF FSC KA7805ERTF LDO Regulator (R2S5.6B1)