P0903PQ

描述

（2）系统程序存储器

它用以存放系统工作程序（监控程序）、模块化应用功能子程序、命令解释功能子程序的调用管理程序，以及对应定义（I/0、内部继电器、计时器、计数器、移位寄存器等存储系统）参数等功能。

（3）用户存储器

用以存放用户程序即存放通过编程器输入的用户程序。PLC的用户存储器通常以字（16位/字）为单位来表示存储容量。同时，由于前面所说的系统程序直接关系到PLC的性能，不能由用户直接存取。因而通常PLC产品资料中所指的存储器型式或存储方式及容量，是对用户程序存储器而言。

常用的用户存储方式及容量型式或存储方式有CM0SRAM，EPR0M和EEPR0M。信息储存常用盒式磁带和磁盘。

CM0SRAM存储器是一种中高密度、低功能、价格便宜的半导体存储器，可用锂电池作为备用电源。一旦交流电源停电，用锂电池来维持供电，可保存RAM内停电前的数据。锂电池寿命一般为1―5年左右。

EPR0M存储器是一种常的只读存储器，定入时加高电平，擦除时用紫外线照射。PLC通过写入器可将RAM区的用户程序固化到R0M盒中的EPR0M中去。在PLC机中插入R0M盒，PLC则执行R0M盒中用户程序；反之，不插上R0M盒，PLC则执行RAM区用户程序。

EEPR0M存储器是一种可用电改写的只读存储器。

欧美品牌停产的，常用的“PLC”备品备件

我司产品应用于以下领域：

1,《发电厂DCS监控系统》

2,《智能平钢化炉系统制造》

3,《PLC可编程输送控制系统》

4,《DCS集散控制系统》
​
5,《智能型消防供水控制系统》

6,《化工厂药液恒流量计算机控制系统》

7,《电气控制系统》造纸,印染生产线,变电站综合自动化控制系列

本特利，英维思，伍德沃德，福克斯波罗、西屋、瑞恩、施耐德莫迪康、ABB、AB、西门子、摩托罗拉、GE发那科、安川、博世力士乐，ACSO，力士乐等各大品牌的DCS系统配件，机器人系统配件，大型伺服系统备件。

L75905 Applied Bio.Pioneer Cont.Flow Peptide Synth.

G75505 Rorze Robot RR721L202H-H30-?ICA-3&CURR-2292-1

Enlarge

C51192 Tektronix DTG 5274 Data Timing Generator 2.7Gb/s

C51191 Tektronix DTG 5274 Data Timing Generator 2.7Gb/s

C70445 MEI Marpet Mech-El 779 Manual Epoxy Die Bonder

C70443 Mech-El 703 Manual Eutectic Die Attach Bonder

K69277 Quad/de Haart MPC-20 Screen Printer Untested

C60415 Unitek Micropull IV Wire Bond Pull Tester 1000g

C61654 Unitek Micropull IV Wire Bond Pull Tester RS232

C59001 Unitek Micropull IV Wire Bond Pull Tester

C72803(2)Christie Electrohome Roadie S12 Projectors

AE43755 RECIF SA Wafer Scribe Reader IDLW8 System

C69112 Spectra Multi-Quad LMI Gas Analyzer w/Turbo Vac

A41046 ADE Technologies DiskMapper Model M2 System

A74032 US Motors Titan Vertical Motor 250 HP,Emerson

L75703 GE Column Screening Kit*NIB*11-0035-95

L75704 GE P-960 Sample Pump*NIB*18-6727-00

C75918 Cosam BCU-T932RSR 3-Channel Chiller-10°C~+90°C

A66346 Piller Apostar AS50 UPS System 50 kVA,480V 85A

A73256 Applied Materials 0010-40099 RF Generator 10kV

A75233 Wentworth Labs 6”Prober w/Unitron ZSB Scope

A73776 Gyros Gyrolab xP Workstation

A73488 Douglas Instruments Oryx 6 w/XYZV Plateholder

C69602 Logitech 2125 Polishing/Bonding Jig

A58951 K&S 6491 Semi-Automatic Die Bonder

C54973 Agilent 16950A 600MHz State/4GHz Timing/4Meg Mem

C54587 Agilent 16950A 600MHz State/4GHz Timing 4Meg Mem

A73483 US Motors Titan Vertical Motor 250 HP,Emerson

A73480 Thermo Jarrell Ash Iris 1000 Spectrometer System

C51193 Agilent E4406A Transmitter Tester w/202 300 BAF

C52517 Agilent E4406A Transmitter Tester w/202 300 BAH

C72658 FST Fine Semitech Dual Recirculating Chiller

C59032 Signatone S-1007S 5″Wafer Prober Probe Station

C72660 FST Fine Semitech Dual Recirculating Chiller

C72659 FST Fine Semitech Dual Recirculating Chiller

A74819 K&S 1470 Automatic Wedge Bonder

A74820 K&S 1470 Automatic Wedge Bonder

C75091 Eppendorf 5804 R Refrigerated Centrifige 5804R

C51195 HP E4406A VSA Transmitter Tester w/BAH,204,UK6

C51194 Agilent E4406A Transmitter Tester w/Opt 202 BAH

G75520 Nikon Diaphot 200 Microscope w/Nikon Optics

Enlarge

A71514 Leitz Wetzlar Trinocular Microscope w/Stage

C51174 HP E4406A Transmitter Tester 7MHz-4GHz w/Opt BAH

C75758 Nikon Labophot-2 Trinocular Teaching Microscope

L67921 Hughes Wire Bonder System WD-8700D1

A63423 Bemco Inc.FC-77 Cart Environmental Pump System

C58955 Signatone S-250-5 Wafer Prober w/B&L Microzoom

A58956 3S 8013 Pick&Place Inspection Wafer Station

A74033(2)Coherent Laserpure 20 Heat Exchanger

C73122 Isel Wafer Handling Robot w/built-in Controller

K73702 Spectra-Physics T20-8S40 Diode Laser System

G75111 Nikon Diaphot Microscope w/Lenses&Eyepieces

Enlarge

C66608 Dage TP1KG Tweezer Load Cell 1kg for 2400PC

A75225 Labconco Delta Series Class II Biosafety Hood

A73918 New Brunswick Innova CO-170 CO2 Incubator

A73919 HP Series 1050 Autosampler,G1303A,79853C

C70150 Dage DC2 TurboSonic PCB Board Washing Station

A72127 Waters 600 Multisolvent Delivery System HPLC

A72125 Waters 4000 Pump System Controller HPLC

A72126 Coherent Innova 90 Argon Ion Laser System

C74126 Laserscope KTP/532 Nd:YAG Surgical Laser System

C73470 Spectra-Physics T20-8S40 Diode Laser System

C65584 Perkin Elmer 1002700 Vacuum Ion Pump System

C51594 Agilent 16950A 600MHz State/4GHz Timing/1Meg Mem

A73479 Blue M Oven CR07-1406F-2,204°C/400°F

C61589 Varian G-292 Rotating Anode X-Ray Tube in B-130H

C73507 Cartesian HONEYBEE Protein Crystallization Syste

C71355 Isel Wafer Handling Robot w/Built-In Controller

G75594 Sanyo CO2 Incubator MCO-18AIC(UV)

Enlarge

C70346 Veeco Dektek SXM Atomic Force Microscope Control

G75595 Sanyo CO2 Incubator MCO-18AIC(UV)

Enlarge

L75707 Nikon Optiphot-2 Microscope&Camera/Controll?er

L75708 Precision 200R Durafuge Refrigerated Centrifuge

G73928 HP G1330A ALS Therm Series 1100