福建中立恒自动化设备有限公司

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

以下链接皆有货

MAXWELL CO 1.SHANK RECESS TOOL NO. 2R

Mayr ROBA top stop 8197262 safety brake 120/899,000.01 24V 30w 1x 12Nm

MAYR ROBA-STOP BRAKE 4/802.410.3 X1067966, 24V 25W 6NM

MAYSER SG-EFS 104-ZK2/1 / SGEFS104ZK21

MAZAK AJV 25/404N VMC PARTS, PULSE MOTOR DRIVER MODEL NO. 101

MAZAK AJV-25/405 VMC PARTS, PULSE MOTOR DRIVER MODEL NO. 101

MAZAK BACK SIDE COVER, PARTS

MAZAK CONTROL PANEL 24226232680,

MAZAK CONTROL PANEL 24266214992 EMERGENCY STOP,

MAZAK D65RA002610 CIRCUIT BOARD

MAZAK D65RA002610 CIRCUIT BOARD KK 1894V-0

MAZAK FRONT SIDE COVER, PARTS

MAZAK MACHINING MONITOR OPERATOR PANEL

MAZAK RIGHT SIDE WAY COVER APPROX. 38" X 18.5",

MAZAK X AXIS BACK SIDE COVER, PARTS

Mazak Yamazaki A829035B MPS-400 Sequencer Board w/ IPM-300 S829108A HI5 CNC C

MAZAK Y-AXIS BACK SIDE WAY COVER, PARTS

MAZAK Z-AXIS WAY COVER, PARTS

MAZATROL CAM T-2 OPERATOR CONTROL PANEL KEYBOARD, W/ BOARD FX709C

MAZATROL CAM T-2 OPERATOR CONTROL PANEL KEYBOARD, W/ BOARD FX709C FR MAZAK LATHE

Mazatrol ITJ Laser CNC Control Panel

MAZATROL M-32 OPERATION BOARD MITSUBISHI YZ441C-3

MB Connect Industrial Router MDH 835 | 1x WAN Interface, 4x LAN Interface

MB CONNECT LINE GMBH MDH 204 FERNWARTUNGSSYSTEME    

MB Connect Line mbNET.mini Industrial Router MDH 860

MB Connect Line Universal Security Router MDH830

MBK175A Main 175A Circuit Breaker EQ8694 / 2 Pole 120/240V Siemens

 MBM INFEED CHILL 1014545 A78

 MC800F 3 Pole 800A Circuit Breaker w/ 500A Magnetic Trip Unit  

MCB A406510 PP36 Qty 1

Mcbroom C81C05A30A00000 1850RPM Permanent Magnet Servo Motor

MCBROOM ELECTRIC TTR-4500-4200-B 9/28V 44.4/182A IB FT 12/42 2400RPM 37H74-403 1

 MCBROOM SERVO MOTOR 1HU3104-0AD01-Z 77-877-8-7-95

MCE HC-ACI REV 6-1 Elevator Control Circuit Board 90 Day

MCE HC-ACIF-XXX REV2-4 Elevator Control Unit Circuit Board 90 Day

MCE HC-PI/O-EX REV 4-9 MOTION CONTROL BOARD

MCE Power & Call Board HC-PCIO- Rev. 8-9

MCE SCR-DS Motion Control Elevator Circuit Board

MCG DC BRUSH MOTOR ID SERIES P/N ID23901, 3.28AMPS

MCG Surge Protection, SPC-240

McGill CF4SB ENDURO cam follower bearing roller stud type W/ NUT 4"

MCGILL SB22215C3W33SS BALL BEARING

McLean 2Nb3500S19 30-4019-02 Rev 1 Type U21 1/20HP Blow Motor Assembly

Mclean 2NB3500S6 28-1065-01 Rev2 Blower Motor Assembly

MCLEAN AIR CONDITIONER M33-0416-G010H 13.2A 115V REFR 134A 350-150 PSIG 1084/117

McLean Blower Motor 1/17HP 2NB3500S8 28-1064-01 Type U21

McLean Blower Motor 1/20HP 2NB3500S12 Type U21 28-1064-01

McLEAN ENGINEERING BLOWER MOTOR 2NB3500S18 1/17HP 2700/3000RPM 1PH 115V TYPE U21

MCLEAN MIDWEST AIR CONDITION 52-1226-068 BTU 3516 12000COOLING 230V 1PH 3R

MCLEAN MIDWEST AIR CONDITIONER 52-1226-068 BTU 3516 12000 COOLING 230V 1PH 3R 1Y

MCLEAN MIDWEST ELECTRONIC ENCLOSED AIR CONDITIONER LB11-0316-003 879BTU COOLING-

McLean Thermal JB1C014N Blower Motor (115V, 50/60Hz, 3000 RPM, .015HP) ""

 MCP13300S 600V 30A 3POLE CIRCUIT BREAKER  

 MCP532500 3 Pole 600V Motor Circuit Protector

MCQUAY AIR CONDITIONING CENTRIFUGAL CHILLER CONTROLLER INTERFACE 073230701 W/MIC

MCQUAY CAREL CONTROLLER, 2006 MICROTECH CHILLER II VER. WCFU3UU003P

MD Equipment Lot of 12 MDOS 7/8" S Oil Tight Hole Seals 20Z678 NIP

MDC: VACUUM PRODUCTS CORPORATION, P/N: KAV-150-P

MDI 3100NO120A CONTACTOR

Mean Well DIN Rail Power Supply 40A 3 Phase | DRT-960-24

Mean Well Power Supply S-240-30 Output: +30VDC 8A

Mean Well S-100F-24 Switching Power Supply 200-240VAC 1.5A

MEAN WELL SP-300-24 NSNP B58

Meanwell PS-65-R8 Power Supply Board

Meanwell s-25-24 power supply

 MEASUREMENT TECHNOLOGY LTD MT02 FIBOX PCM 100/125 T

MECHANICAL INGENUITY PRELERT & PREVAC CHILLER PRESSURE/LEAK PROTECTION SYSTEM 1-

Mecos Traxler MBE3-50 Frequency Inverter Version: BG10328-05

MECS 0F250 WAFER PREALIGNER, OF250, LPM02, 133857

MECS Transfer Robot Track YC505, MECS CS7000 controller

MECS UTC100 Robot Control System, Controller, UTC-100, EQ01, 125306

MECS UTC100 Robot Control System, Controller, UTC-100, WD004, W D T 004, 125305

MECS UTM3500NS Wafer Handling Robot and cables

MEDC EXPLOSION PROOF HORN AMD LIGHT DB1/H SM87HXB  factory mounted

MEGATEST 112068 PCB, TG2, GENESIS, 123197

Megger MJ359 Line/Hand-Cranked Insulation Resistance Tester

MEGTEC SYSTEMS 101873 THERMOCOUPLE SENSOR, 1/2" NPT Babcock Wilcox

MEIDEN VIGUS EPD COMPUTER UA024/755H CONTROLLER with cables/accessories, 107246

MEI-HOH TRANSFORMER MODEL 8240 D, 0.8KVA, PRI 18.5V/24V, SEC 110V/220V

MEI-HOH TRANSFORMER MODEL 8242-A, 1.2KVA, PRI 0-220V, SEC 0-110 0-22 0-100 0-19

MeiVac VQ-200-ISO-U-SM, Vari-Q Throttle Valve, 451042

Melsec Mitsubishi Q61P,QX41,QJ61BT11N,QY41P,Q03UDCPU 9 Slot System

Melteic 30 Amp 480V Receptacle 33-38043-4X

Melter Toledo Stainless Scale Base PBA226-QB15  

Meltpro Temperature Control 109-0011

Meltric 33-38043 Switch-Rated DS30 Inlet 480 VAC 30A Poly Receptacle Outlet

MELTRIC 61-1A053-080-1 63-14073 ANGLE/BOX RECEPTACLE/CONNECTOR 554

Meltric 713C3N10 Metal Box with Nylon Angle 0428

MELTRIC CORP DS20A RECP ANGLE W/MICROSWITCH 33-17043-270

MELTRIC CORPORATION 63-18043 INLET/PLUG DSN20 20A 480VAC LRG QTY

MELTRIC CORPORATION 7T1F0N10, 1" NPT METAL JUNCTION BOX

Meltric DSN20 Receptacle/connector - 63-14043 20A 3p+G 480VAC5hp 4x LRG QTY

MELTRIC MB31, METAL JUNCTION BOX, 1" NPT,  

Meltric Receptacle DS 200 37-27043

MEMEX AUTOMATION INC MXBRU 2, MXBRU2, BATTERY REPLACEMENT UNIT

Menics Red Signal Light MS115T-BFF-R

Menics, 22UU60 , Red Beacon Warning Light Signal Strobe Flashing

Mercoid BBE 221-3 Bourdon Tube Pressure Switches Explosion Proof

MERCOID DA233SS PRESSURE SWITCH   

  MERCOID PRESSURE SWITCH DPA-7033-153-61

MERCOID PRLW156RP1UL PRESSURE SWITCH   

MERCOID SERIES 3100D EXPLOSION PROOF PRESSURE TRANSMITTER 3100D-2-FM-1-1-LCD

Merkes Servo Motor 3000rpm | MH3-0270-30-560/S1