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。
GE GENERAL ELECTRIC 1/8 HP BLOWER MOTOR 1050 RPM 208-230V 1Ø 5KCP39CGN135S
MAUREY 2 GROOVE PULLEY SHEAVE 2 B 5.6 SDS 5.95" O.D SDS BUSHING 5.4" PITCH
THOMPSON SSEPBAM16DD SUPER SMART LINEAR BEARING METRIC 16 MM
BEBITZ INDIA 3" WELD NECK FLANGE B16.5
ALLEN BRADLEY .250 KVA CONTROL TRANSFORMER 220/480 PRI 110/120 SEC X-326539
CUTLER HAMMER 30A NON-F SAFETY SWITCH NEMA TYPE 1 600V 30 HP DH361UGK
DM SCUTLER HAMMER 30A NON-F SAFETY SWITCH NEMA TYPE 1 600V 30 HP DH361UGK
NORTON GEMINI 20"X3/16"X 1" REINFORCED CUT-OFF WHEEL 2710 RPM
SMC 3/8" REGULATOR 150 PSI MAX PRESS AF40-N03-Z
DM S SMC 3/8" REGULATOR 150 PSI MAX PRESS AF40-N03-Z
S HYDRAULICS MBA 0JP8-A2 VALVE MANIF
AGASTAT 7012AFGZ TIMING RELAY 1-10 MINUTES 600 VAC 120 VAC COIL 7012 AF GZ
FULHAM FIREHORSE 35GK23 EXIT SIGN COMBO LED EXIT SIGN LIGHTING FHEC33WR
SIEMENS 30 AMP NON F HEAVY DUTY SAFETY SWITCH 600V AC/DC HNF261
DM SPRX STUD MOTED RECTIFIER 34A840301P006
REDINGTON 1-2235 COTER 5 DIGIT MECHANICAL COTER TRUMETER
HACH 51091-00 REV. K 51092-00 DISPLAY BOARD
RIDGID 3/8" NPT HIGH SPEED STAINLESS STEEL DIE 18 TPI RH RIDGID 37910
BR BLANK MODULE 3BM150.9 REV C0 / BM 150
ARIEL KB-2704-S VALVE KIT 158CT
SIEMENS OUTPUT MODULE 6DD1642-0BC0
OPTO 22 15-CHANNEL LOGIC CONTROLLER G4PB16H W/ OPTO 22 BRAIN BOARD B2
WAYNE 7/8" BRIDGE/CONSTRUCTION REAMER SPIRAL FLUTE
MAC 24 VDC SOLENOID VALVE 2.4 WATT VAC TO 120 PSI 45A-AA1-DFFJ-1JD
MAC 110/120 VAC SOLENOID VALVE 6.8 WATT VAC - 150 PSI 181B-111BAAA
HONEYWELL TB7980A1006 DIGITAL THERMOSTAT 24 VAC
SIEMENS SIMATIC S7 PM-E POWER MODULE FOR ET 200S 24-48 VDC 6ES7 138-4CA50-0AB0
DANFOSS REFRIGERATOR SOLENOID VALVE 032F7100 EVR 2
ALLEN BRADLEY 16 AMP CONTACTOR W/ 100-S 48-72 VDC COIL 100-C16EY400
TIP TEMPERATURE TIPTCK103 TC71-K SURFACE PROBE STRAIGHT MINI CONNECTOR 5'
DELIRON DCI-D STAINLESS STEEL CYCLE INDICATOR 6500 PSI DL3073
7) C3 CONTROLS FVLU120 PILOT LIGHT RED WHITE 120VAC/DC FULL VOLTAGE LOT OF 7
FUTURE DESIGN CONTROLS FDC-7L-Z260 LIMIT CONTROL 0 - 2200 DEGREES
TELEMECANIQUE RED STACK LIGHT XVBC4M4 40-230V
MITSUBISHI A1SX80-S1 INPUT MODULE
GENERAL ELECTRIC CR104PBT11C3S2 ILLUM. PUSHBUTTON CLEAR LENS 120VAC
BLAC INC HYDRAULIC FILTER 1'' DIAMETER 4 1/2'' LONG 00019-A-0001
SWAGELOK SS-8-HLN-6.00 STAINLESS NIPPLES MALE 1/2" NPT 6" LONG X 1/2" TUBE
SWAGELOK SS-8-HLN-6.00 STAINLESS NIPPLE MALE HEX 1/2" NPT 6" X 1/2" TUBE
SWAGELOK SS-8-HLN-4.00 STAINLESS NIPPLE MALE HEX 1/2" NPT 4" X 1/2" TUBE
CHICAGO DIAL INSTRUMENTS DIAL INDICATOR .250 .001 DIAL 0-100 CDI 1-C100-250
SWAGELOK SS-8-HLN-4.00 STAINLESS NIPPLES MALE 1/2" NPT 4" LONG X 1/2" TUBE
SEA GATE BARRACUDA 500 GB INTERNAL HARD DRIVE 128 MB CACHE 2E717D-500
SIEMENS FIRE ALARM SUBASSEMBLY CARD DAC-NET / 500-035100
AUTOMATED LOGIC AAR BACnet ARCNET ROUTER 24 VAC 26 VDC
ALLEN BRADLEY RED ILLUMINATED PILOT LIGHT 120V AC/DC 800H-PRD16R
BACO CONTROLS L22ER01-3E01 / L22ER013E01 TWIST LOCK E-STOP
HEIM 25Z465D8 SPHERICAL BEARING
TIMKEN TW SERIES BEARING LOCK WASHER 5.484" OD 4.813" FACE DIAMETER TW120
MAXXIMA 5" FLASHING WARNING BEACON STROBE LIGHT AMBER 12-80VDC M42705Y
SCHRADER BELLOWS CYLINDER KIT 670408003
CROUSE-HINDS RED PILOT LIGHT 120 VOLT MAX 3 WATTS N2PL10 J1
GAST FULL REPAIR KIT FOR 1AM REVERSIBLE AIR MOTOR K201
SWAGELOK STAINLESS STRAIGHT NIPPLE TO TUBE MALE 3/8 NPT 4 LONG X 1/2" TUBE
ASCO 222346-001D COIL MP-C-040 222346001D 120 DC HT
2DM S IDEAL BRADY CIRCUIT BREAKER LOCKOUT 44810 65404 66321 CB04 CB01 LOT 26
NOKIA AOSD SFP28 10km SM I-Temp RS 474902A.101 FTLF1436W4BTV-NN LALASS 1
CLARK RELIANCE SA 83/664 ROD IGNITOR
3DM S CROUSE HINDS CID101 CORROSION INHIBITOR DEVICE OF 36
1DM SHAM-LET STAINLESS STEEL TUBE COMPRESSION FITTINGS LOT OF 13
FOXBORO FCM10E I/A SERIES COMMICATION COAXIAL ETHERNET TO FIELDBUS P0914YM
JOHNSON CONTROLS T26T-3E HEAT COOL THERMOSTAT 40-90ºF SPDTB HEAVY DUTY
CROUSE HINDS EMPS019 HAZARDOUS LOCATION PUSHBUTTON BLACK
ABB 118 VOLT 60 CYCLE CHART DRIVE MOTOR 35416A1
PARKER 04F20C1108AAFOS05 SHUT-OFF VALVE 1/4" NPT 1/8" ORIFICE 120V COIL
XYCOM INTELLIGENT ICM XVME-230 COTER MODULE 70230-001
COLMAN CONTROLINE MK-2690-0-0-2 PNEUMATIC VAVLE ACTUATOR NO SPRING
SQUARE D TELEMECANIQUE LC1K06 MOTOR STARTER 110 VAC LR2K0308 1.8-2.6 AMP
DM S BULBRITE ENERGY WISER 26W QUAD 2 PIN G24D-3 4100K T4 CF26D/84DM S10
TRANE TRACER MP503 INPUT / OUTPUT CONTROL MODULE 49522490 REV. 1
DM S PHILIPS 8 " 22 WATT CIRCLINE T9 FLUORESCT LAMP Cool White FC8T9/CW
DODGE 1-3/16" 2-BOLT PILLOW BLOCK BEARING 124133
MRC ROLLER BEARING 5212C-H501 STEEL/C3/ABEC-A
LUCENT TN748C TDETECTOR CARD V5 IN STATIC BAG
WATTS 1KCL6 1/4" PORTS PRESSURE REGULATOR 3 TO 50 PSI BRASS
AGIE LPS20F LOW POWER SUPPLY BOARD 617.941.0
HAM 1/2" 150 BRASS BRONZE GATE VALVE FIG B-222 / D180
GENERAL ELETRICAL GE 4176J75-1 CIRCUIT BOARD ELECTRICAL SOUTH 4176J86G1
LINK BELT PILLOW BLOCK BALL BEARINGS P3W219E
AVOCENT EMERGE ECMS1000R KVM AUDIO SERIAL EXTENSION 510-135-501
ANCHOR SCIENTIFIC RED MINI FLOAT DIRECT ACTING FLOAT SWITCH PM25NC
SIEMENS SIZE 0 MOTOR STARTER 18 AMP 600 VAC 1 PHASE 2 POLE SSLBO
WATTS 3/8" AIR REGULATOR 0-125 PSIG R119-03C
MICRO MOTION PI 4-20 FLOW METER INDICATOR TRANSMITTER ADALET EX PR. XIHFGC2
ALLEN-BRADLEY 800T-FXP 16 A1 120V ENCLOSED E-STOP 800T-1TZ
RED LION CONTROLS 115 VAC 5 DIGIT DIGITAL TACHOMETER DT3DO500
REXNORD 1-3/16" LINK BELT BEARING 1-3/16" 2 BOLT PILLOW BLOCK P3W219E
MORSE 10' RIVETED ROLLER CHAIN 119815 2040R
ENCON FIRSTEP FIRSTFLUSH SINGLE BOTTLE FLUSH STATION 01110786S
ASCO RED HAT 1/4" BRASS 4-WAY SOLENOID VALVE 8342G501
SIEMENS 505-7339 NETWORK INTERFACE MODULE W/2 500-5606 NETWORK TAP HOUSING
FAIRCHILD 65432 PRESSURE REGULATOR 1/4" FNPT 1/2-30 PSIG 300 PSIG
ALLEN BRADLEY 1492-CABLE050F PREWIRED CABLE FOR 1771 DIGITAL I/O
SKF 6312 2ZJEM DEEP GROVE BEARING DOUBLE BORE 60mm x 130mm
ASHCROFT DURAGAUGE PRESSURE GAUGE 0-30 PSI 1/4" BOTTOM 45-1279-PS-04L-30#
CUTLER HAMMER DOM FLASHGARD BOTTOM WIREWAY MCC DOOR 15 1/2" x 8 1/2"
INTERMATIC ASTRONOMIC DIAL TIME SWITCH W/ SKIPPER 40 AMP 120-277 VAC V-45073
SCHNEIDER ELECTRIC ZELIO SR3 XT141FU EXPANSION MODULE 24VDC 240VAC 8 INPUTS
RONAN X55-302-1-B-N-DIN TRANSMITTER MODULE 24VDC RANGE 3-15 PSIG X553021BNDIN
SIMPSON PANEL METER S09298AU 5 AC AMPERES MODEL 50 MD 4" FACE
SIMPSON PANEL METER S09299AU 60 AC VOLTS MODEL 59 MD 4" FACE
SIMPSON PANEL METER S11920AU 50 DC MV MODEL 27A 2.5" FACE 0-1200 AMPS DC
GOYEN CONTROLS JET VALVE RCA3D2 COIL 120VAC 1/8" PORT
DART CONTROLS 250G SPEED CONTROLLER 120-240VAC PARTS
ARIEL KB-5616-BB COMPRESSOR DISCHARGE VALVE REBUILD KIT 190CT,MTX
ARIEL KB-2438-AA COMPRESSOR VALVE REBUILD KIT 190CKT,MTX S365560
SANDPIPER PILOT VALVE SLEEVE SPOOL SET 031-012-000
KMC CONTROLS CTE-1004-10 THERMOSTAT HEAT COOL CTE100410
ALLEN BRADLEY 800T-16JR5KB7AX ILLUM 3 POSI. SELECTOR SWITCH LEFT CENTER RIGHT
WARREN RUPP 031-039-000 SLEEVE SPOOL KIT
DM S CLIPPER FLEXCO UX1SPS12 IBAR 430 STAINLESS STEEL HOOKS 01184 LOT OF 9
LUMAPRO VAPOR TIGHT 200W 120VAC INCANDESCENT SURFACE MOT FIXTURE 3RB18
NIKON AC IT LA-1 MEDICAL NIKKOR- 115VAC
ROTO HAMMER DUCTILE IRON CHAIN WHEEL CL-6
SQUARE D SIZE 0 MOTOR STARTER 440/480 VAC COIL 600 VAC 5 HP 8536 BA02
SHARPE STAINLESS STEEL LOCKING BALL VALVE 1000 CWP 1-1/2" FNPT 50M760
SIEMENS 6EP1436-3BA00 POWER SUPPLY INPUT 3AC 400-500 1.3A OUTPUT 24VDC 20 AMPS
SIEMENS 6EP1436-3BA00 POWER SUPPLY INPUT 3AC 400-500 1.3A OUTPUT 24VDC 20 AMPS
EFFICIENT .3 MICRONS 78-8063-1507-9
GENERAL CABLE 18 GAUGE 500 FT RED COPPER BUILDING WIRE 600 V E355563MN
RIS AC VOLTAGE TRANSDUCER 0-150 VAC IN 0-1 MA OUT VCC-30B
NTN 1-3/16" PILLOW BLOCK BEARING UELPL-1-3/16 RAK 2 BOLT MOT
(DM S18-8 STAINLESS STEEL HEX CAP SCREWS 3/4-10 X3 C LOT OF 8
(100) SOLON 8H125718 STAINLESS STEEL WASHER 1/2" x 1.313" x 1/8" LOT OF 100
ALLEN BRADLEY SLC 500 POWER SUPPLY 1746-P2 W/ 7 SLOT CHASSIS 1746-A7 - FLAW
DM S BRADY 14" x 10" PLASTIC BLANK SIGNS B-401 / 25377 / Y54208 PACK OF 10
COMAIR .25 AMP ROTRON THERMALLY PROTECTED BLOWER FAN 230 VAC 60 Hz CLE32
GOULD 1/4" AIR WATER BRASS SOLENOID VALVE 120 VAC 5-150 PSI TYPE QR3
SQUARE D SIZE 1 8502 SCO 1 SERIES A MOTOR STARTER 600 VAC 3 HP 1Ø 120V COIL
ALLEN BRADLEY 25 AMP MOTOR CIRCUIT BREAKER 3P 600 VAC 140-CMN-2500
RELTON HS-64 HO METAL CUTTING HOLE SAW 4" DIA 1" DRILLING DEPTH
BLUE DEMON SS ALL POSITION WELDING ELECTRODE E316/316L-16 x 1/8" 5LBS