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。
以下链接皆有货
654861 DIAPHRAGM CLUTCH FOR NOV 2040 DRAWWORKS
K6U-546 EXHAUST COVER MANUFACTURED BY INGERSOLL RAND
D10-319A PINION GEAR FOR MOTOR SHAFT MFG BY INGERSOLL RAND
17681-35 PISTON HEAD HASKEL 1768135 FOR GW-35
HP350 HYDROPLEX PUMP REPAIR KIT 00070069 OIL GAS PUMPS REPAIR KIT NOV
E-DST STATION ECHO DESK LCD/TACTILE PAD FEDERAL SIGNAL CORPORATION
NBA-4141 JRC BATTERY CHARGER AC110V
23137920 THERMAL VALVE KIT INGERSOLL RAND
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UP60-345 HOBART PRESSURE BOOSTER PUMP
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PR502H0001 PARKER PISTON RING KIT
21078 AUGER MADE IN USA /
8464953 PISTON OIL RING SET ELECTRO MOTIVE EMD
1313524 ASSY HYDRAULIC HOSE SIGNAL LINE ROTARY TABLE T-6050 NOV
AA5160004000 FLOWMETER PREAMP PCB CARD
65720375 CAT TRIPLEX PUMP SPARES MADE IN JAPAN
HERNIS SCAN SYSTEMS A/S PCB 22041 REV A REV B
223669 WIPER ROD, 19" CYL 160K TENS NOV SHAFFER
FRICTION DISC AMCLYDE P/N 961274-28 FOR CH SERIES PLANETRY HOISTS SET OF 9
231-715 BRAKE LEVER INGERSOLL RAND
CCS 646GZE7-7011 PRESSURE RISER TENSIONER SWITCH NOV SHAFFER
HP0590G GROUND MOUNTED PERIMETER GREEN LIGHT
LIEBHERR ELECTRONIC 917851314 PCB CARD
CLX16 PARKER AUTOCLAVE 1 IN ELBOW 20000 PSI
86778 PIN CLEVIS NATIONAL OILWELL VARCO NOV
56036 GROUND DETECTION PCB BAYLOR ELMAGCO 7838
836-C7A ALLEN BRADLEY PRESSURE CONTROL SWITCH
725R175 SONCEBOZ CHART DRIVE ITT SNYDER
150995 HJL-CM6083 FLOATING BALL VALVE MACCANNA/MARPAC
204056 SCHUNK HSK63A 20MM HYDRAULIC TOOL HER 90MM PROJECTION
22110415 INGERSOLL RAND UNIVERSAL COMMUNICATION MODULE
RIDGID 24" HEAVY-DUTY STRAIGHT PIPE WRENCH
VALVE SEAT PULLER HEAD 3J FOR MUD PUMP (REPAINTED) NATIONAL OILWELL VARCO
231-719 BRAKE ADJUSTING SCREW INGERSOLL RAND
HLK-319-12 INGERSOLL RAND 03694676 PINION
JRC CCL-247 PCB CIRCUIT H-7PCRD1171A PC703 MADE IN JAPAN
4WH 6 D53 REXROTH/ DIRECTIONAL VALVE MNR R900449957 4WH6D53
090-KB001-600 SEAL KIT MILLER
231-715 LEVER BRAKE AIR HOIST INGERSOLL RAND 400046
5104416 LIEBHERR SHUTTLE VALVE 3WAY 510441614
KMW 582780 C KAMEWA PCB CARD /
1949-001 DEMCO STEM SEAL ASSEMBLY 001949-001 LOT OF 7
K6U-744A INGERSOLL RAND AUTOMATIC BRAKE REVERSE K6U744A
W0508SB060 WESTCODE RECTIFIER DIODE LOT OF 7
UP30-420 HOBART RU HANNING DRAIN PUMP 775854-3
MD TOTCO E273-40 LOAD CELL DIAPHRAGM WEIGHT INDICATOR
K5B546-KRING PISTON RING SET INGERSOLL RAND K5B-546
PORTA TOOL RC1-A RC1-B SCISSOR RING COMPRESSOR
KMW 582773 C PCB /
HOBART 00-475185-00003 OVERLOAD RESET 475185-3
K6U-945S REVERSE VALVE BUSHING INGERSOLL RAND K6U945S
3N4416 PYROMETER CATERPILLAR /
PCA 121A PCB BOARD /
JRC NVT-161 MICROPHUNIT IBUKI MIC-P2 PCB BOARD
PC2262 HELVAR ELECTRSONIC PC2262/2 BREAKOUT MODULE
CXE160LF TELESTE POWER SUPPLY UNIT
T2385-3 SEAT RING ASSY BEL GATE VALVES T2385-3-1
3162331 NOSE PLUNGER MECHANICAL HALLIBURTON HT-400 (316.2331)
2511303 MANITOWOC J Q ICE MAKER CONTROL BOARD
2511303 MANITOWOC J Q ICE MAKER CONTROL BOARD
08136 STANLEY MAIN SHAFT FOR THE IW16 IMPACT WRENCH
E57B-24 MARTIN DECKER DIAPHRAGM 2678065 MARTIN DECKER DIAPHRAGM
L809S VOLCANO 81021412 MADE IN JAPAN LOT OF 8
COMPRESSED GAS REGULATOR 3500 PSIG 1665484 USE ONLY WITH OXYGEN
510441614 LIEBHERR SHUTTLE VALVE
100237 HATLAPA 1-50 BAR SOLENOID VALVE
LHK-44-S4-11-300 HAWE LOAD-HING HYDRAULIC VALVE LHK-44
DRIHDR01 ROBWAY CRANE DRUM ROTATION INDICATOR ASSY
NQE-7700A JRC JUNCTION MADE IN JAPAN
205665 POPPET CHECK VALVE - NATIONAL OILWELL VARCO
MINI HOTPLATE HP2310B BARNSTED THERMOLYNE ,240 VOLTS ,50/60 HZ MADE IN USA
30173757 REV B SLIDE RING FOR NOV ST-80 ROUGHNECK MADE IN USA LOT OF 11
PARKER STAT-O-SEAL P/N 600-0002-1/4 (1/4") 0 PCS
62708FTDD180 NOV VARCO VSM300 SHALESHAKER SCREEN TBC180
COMPAIR HSK1937 SERVICE KIT – 1500HRS REAVELL
DOW CORNING 732 MULTI-PURPOSE SEALANT LOT OF 12
62708FTDD165 NOV VARCO VSM300 SHALESHAKER SCREEN TBC165
VC0027 MSI PRODUCTS LOW TORQE VALVE INSERT 2 IN STD 13EFT0005
FLH-150 ANCHOR WINCH HEATOR P/NO.17015005007
R1701250XX REXROTH PRECISION HOUSING
ROSS HILL 200D343 PCB VOLTAGE FEEDBACK SCHEM ASSY 0509-3000-00
2950-704 HAMMER PIN INGERSOLL RAND 2950704 LOT OF 8
INGERSOLL RAND PHS AIR PENDANT REMOTE FOR WINCH
32015174 PISTON RING SET INGERSOLL RAND SET
VERSA VALVE PNEUMATIC VALVE SOLENOID VIA-4522-SC0007 3/2 WAY
S251 FISHER CONTROLS REGULATOR
96290 VARCO VDS PCB CARD
112534 SEA TEL PCB BOARD
1800-09654 MOTOR SHAFT ASSEMBLY ALFA LAVAL 83387 (81305)
VZL-3301-11S-155-167 VERSA VALVE VAC 200
1" MP- NIPPLE CLOVER TOOL CO. W/P. 20000PSI
G561M SHEAR FLOW VALVE REGULATORS MADE IN USA
C61000-05 CLOVER TOOL COMPANY HT 973831
K352352 SEAL KIT SCHRADER BELLOWS K352366
7296 MAK AIR STARTER VALVE ASSY 6M281AK
30217640 INGERSOLL RAND VALVE SEAT
K5B546-KRING INGERSOLL RAND PISTON RING KRING SET
RSM200K ENERPAC REPAIR KIT
CAMERON CHECK VALVE 1 1/2 INCH REPAIR KIT 5000PSI
P-107410-K0000 REXROTH AVENTICS CYLINDER BORE SEAL KIT R433024228 KIT
MANUAL TONG DIE BJ 16402-6
999-02-1048-002 AUTELDAC 4 GAI TRONICS PCB CARD / 999-05-1048
NORGREN 03029902 VALVE EMERGENCY STOP INLINE 3/2-WAY 335L/MIN 10BAR
TORQLITE RT40PR PISTON ROD
206-734 GRACO REPAIR KIT FOR BULLDOG AIR MOTORS KIT
2-75-3SX STEM MM INTERNATIONAL MADE IN USA
MD TOTCO FLUID HAND PUMP MODEL 101 ITM 10036131-002
LYNX V3 RP VIGILANCE WATCH ALARM MARINELEX TECHNOLOGIES
140232-10-01-03 STEM PACKING FOR 3 1/16" 10000 PSI LOT OF 10
66-10LK75M1 FLOWSERVE LIMIT SWITCH KIT OPT SERIES 75, SIZES 10
50658451 SEAL KIT TORQE WRENCH CYLINDER ASSAMBLY SCD 30113164
UGI-417 GYRO COMPASS INTERFACE SHANGHAI ORIENT MARINE
99-31007 REPAIR KIT FOR HYDRO MOTOR
T3 ENERGY EQUIPMENT 102928.17-001 POPPET 20378625
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6312.132-418-1 BARDEX CORPORATION VALVE BLOCK
BA0027300 MHWIRTH SEAL KIT FOR HYDRAULIC CYLINDER
2934-724 INGERSOLL RAND HAMMER 2934724
110458-14 VETCO PISTON WEAR BUSHING FOR VETCO 18-3/4"
212842 REPAIR KIT FOR V4 NL SHAFFER
YDS-10 AUTOMATIC PUMP CANTROL 220-240V / 50/60HZ
14647 TUBE CENTRIFUGAL FOR MUD LAB LOT OF 12
21V9M071 9/16" STRAIGHT NEEDLE VALVE MAXIMATOR
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VICTAULIC SERIES 716 CHECK VALVE SIZE 3/88.9
CURRENT SENSOR CTL202HTS/1KY72
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2J-31601-02 PILOT LIGHT 480V 6" LEAD LOT OF 12
60B1S110233NNAL CAPACITOR 233-280 ALLIANCE LAUNDRY SYSTEMS 37377 LOT OF 9