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。
SOLARMAXX300BARELAMPONLY (for SUNOPTICS)
SSX0035BARELAMPONLY (for SUNOPTICS)
COMBIFLASH SYSTEM SQ16X DEUTERIUM LAMP (for ISCO)
SM 3100 DEUTERIUM LAMP (for LDC)
SM-4000 DEUTERIUM LAMP (for THERMO SCIENTIFIC)
L-310 (for SONNTEK)
S600 DEUTERIUM LAMP (for SPECORD)
DXL20SN3 (for USHIO)
GIULIAV629LYEAR2018BATTERY (for ALFA ROMEO)
300V857L730CCAYEAR2008BATTERY (for CHRYSLER)
RANGEROVEREVOQUEL420L770CCAYEAR2013BATTERY (for LAND ROVER) and
56029635ACBATTERY (for MOPAR)
5500 L6 6.7L 730CCA DIESEL YEAR 2012 BATTERY (for RAM) and
(25) PQL F32T8/SKY-BRITE PLUS/25W
(25) F32T8/SKY-BRITE PLUS (for PQL)
(25) F32T8/SKY-BRITE PLUS/25W (for PQL)
744-A4060 (for )
220-191-000 LAMP & MODULE (for STRYKER)
LISTINGUS 180C2 (for US BATTERY)
LISTINGESGC-2 (for WALMART)
LISTINGUS1800 (for US BATTERY)
4708900 (for HACH)
2100N (for HACH)
Replacement fo8000LAMPHOUSING (for STRYKER)
(25) HALCO F32T8/741/ECO
(25) F32T8741ECO (for HALCO)
BHL5003-SU LAMP & HOUSING (for JVC)
OVERDRIVE31AGM (for TROJAN)
T125215AHDURACELLBRANDBATTERY (for TROJAN)
LISTINGA25C YEAR 1995 STARTER (for VOLVO)
LISTING71664G07 (for EZGO / CUSHMAN / TEXTRON)
(10) KICHLER 5907FST
(HALCO F32T8/735/ECO/IC
(PHILIPS F32T8/TL735
(OSRAM SYLVANIA FO32/735
(PHILIPS F32T8/TL735/ALTO
(PHILIPS F32T8/TL735/ALTO PLZ
(DAMAR F32T8/SP35/ECO
(GE GENERAL ELECTRIC G.E F32T8/735/ECO
(F32T8735ECOIC (for HALCO)
(F32T8TL735ALTOPLZ (for PHILIPS)
(F32T8SP35ECO (for PHILIPS)
(F32T8735 (for BATTERIES AND LIGHT BULBS)
(F32T8SP35ECO (for DAMAR)
(FO32735 (for SYLVANIA)
(F32T8735ECO (for )
(F32T8735KENV (for LIGHT BULB / LAMP)
(FO32735 (for OSRAM SYLVANIA)
(F32T8TL735 (for PHILIPS)
(15903 (for )
(F32T8TL735 (for LIGHT BULB / LAMP)
(F32T8TL735ALTO (for PHILIPS)
(BATTERIES AND LIGHT BULBS F32T8/735
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MMX11AA1D7N0-0 Motor Drives/VFDs/Speed Controllers
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NFXF25A0-2 Motor Drives/VFDs/Speed Controllers
NSB DA1-324D3FB-A20C Motor Drives/VFDs/Speed Controllers
NSB DC1-349D5FB-A66N Motor Drives/VFDs/Speed Controllers
NSB DM1-111D6NB-S20S Motor Drives/VFDs/Speed Controllers
NSB DC1-327D0FB-A6SN Motor Drives/VFDs/Speed Controllers
NSB DC1-344D1NB-A66N Motor Drives/VFDs/Speed Controllers
NSB DC1-32024NB-A20CE1 Motor Drives/VFDs/Speed Controllers
DXG-SPR-FR3BC Motor Drives/VFDs/Speed Controllers
NSB DC1-127D0NB-A20CE1 Motor Drives/VFDs/Speed Controllers
NSB DM1-34016EB-S20S Motor Drives/VFDs/Speed Controllers
NSB DM1-34012EB-S20S Motor Drives/VFDs/Speed Controllers
NSB DC1-344D1NB-A20CE1 Motor Drives/VFDs/Speed Controllers
NSB DE1-345D0NN-N20N Motor Drives/VFDs/Speed Controllers
OPTTHR7 Motor Drives/VFDs/Speed Controllers
NSB HMX32AG01821-N Motor Drives/VFDs/Speed Controllers
NSB HMX35AG01822-N Motor Drives/VFDs/Speed Controllers 1
NSB DM1-34023NB-S20S Motor Drives/VFDs/Speed Controllers
NSB DE1-121D4NN-N20N Motor Drives/VFDs/Speed Controllers
NSB DM1-327D8NB-S20S Motor Drives/VFDs/Speed Controllers