DSDX404

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选择深圳长欣,选择放心,售后无忧
大量现货,当天顺丰发货!
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描述

DSDX404

为了延长PLC控制系统的寿命,在系统设计和生产使用中要对该系统的设备消耗、元器件设备故障发生点有较明白的估计,也就是说,要知道整个系统哪些部件最容易出故障,以便采取措施。本文将对PLC过程控制系统故障分布规律进行分析。为了延长PLC控制系统的寿命,在系统设计和生产使用中要对该系统的设备消耗、元器件设备故障发生点有较明白的估计,也就是说,要知道整个系统哪些部件最容易出故障,以便采取措施。现以我厂特种水泥1号线的PLC过程控制系统为例,对PLC过程控制系统故障分布规律进行分析,希望能对PLC过程控制系统的系统设计和U常维护有所帮助。 系统故障一般指整个生产控制系统失效的总和,它又可分为PLC故障和现场生产控制设备故障两部分。PLC系统包括中央处理器、主机箱、扩展机箱、I/O模块及相关的网络和外部设备。现场生产控制设备包括I/O端口和现场控制检测设备,如继电器、接触器、阀门、电动机等。 PLC主机系统最容易发生故障的地方一般在电源系统和通讯网络系统,电源在连续工作、散热中,电压和电流的波动冲击是不可避免的。通讯及网络受外部干扰的可能性大,外部环境是造成通讯外部设备故障的最大因素之一。系统总线的损坏主要由于现在PLC多为插件结构,长期使用插拔模块会造成局部印刷板或底板、接插件接口等处的总线损坏,在空气温度变化、湿度变化的影响下,总线的塑料老化、印刷线路的老化、接触点的氧化等都是系统总线损耗的原因。所以在系统设计和处理系统故障的时候要考虑到空气、尘埃、紫外线等因素对设备的破坏。目前PLC的主存储器大多采用可擦写ROM,其使用寿命除了主要与制作工艺相关外,还和底板的供电、CPU模块工艺水平有关。而PLC的中央处理器目前都采用高性能的处理芯片,故障率已经大大下降。对于PLC主机系统的故障的预防及处理主要是提高集中控制室的管理水平,加装降温措施,定期除尘,使PLC的外部环境符合其安装运行要求;同时在系统维修时,严格按照操作规程进行操作,谨防人为的对主机系统造成损害。

产品承诺:
保 证 全新原装进口,
保 证 安全准时发货,
保 证售后服务质量,
优势价格,大量现货。

主营DCS系统配件
机器人系统配件
大型伺服系统配件
品牌:ABB   ,AB  ,GE,FOXBORO,本特利,英维思,伍德沃德,西屋,瑞恩,施耐德,西门子,摩托罗拉,安川。力士乐。ACSO,横河等进口品牌。 专业销售进口DCS  PLC系统备件模块
Triconex Siemens Yaskawa ABB GE Ovation AB Foxboro Motorola Schneider XYCOM KUKA
  专业销售进口DCS  PLC系统备件模块 15天包退换 一年质保 大量现货  国内实力库存商家

Edwards Multi Stage Dry Vacuum pump Drystar DP 40 +encl

Alcatel PTM 5081 Vacuum Pump w/ Accessories Great Deal!

Vacuum Generators RGA Residual Gas Analyzer Sensor
One-day shipping available

Refurbished Elmo-Rietschle KTA 80/1 – w/o motor
Manufacturer Refurbished Rotary Vane Pump

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BT-85 BEST TECH VACUUM PUMP, 2.2 KW

QUINCY VACUUM PUMP 5 HP 230/460 VOLTS 3 PHASE VERY NICE

Varian V700HT Vacuum Pump Controller

New Vacuum Pump W/30Gal tank 1 HP 3 Phase 230/460 volts

Vacuum pump Kinney KTC-112 ACES

Gardner Denver Welch Vacuum Pumps, Two-stage Belt-drive

Refurbished Elmo-Rietschle KTA 80/2 – w/o motor
Manufacturer Refurbished Rotary Vane Pump

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JUROP R260 VACUUM PUMP

Oerlikon Leybold TMP 50 Vacuum Turbo Pump: Rebuilt

Varian TV 70D Vacuum Turbo Pump: Rebuilt
90 day warranty

Leybold Sogevac SV40Bi Vacuum Pump: SV 40 Rebuilt SV40

CTI Cryogenics 8300 Compressor & 8100 Controller

500 CFM 29.9 inches of Hg LEYBOLD VACUUM pump 20 HP

VACUUBRAND VACUUM PUMP SYSTEM MZ 2C VARIO PUMP VNC 1

Republic Regenerative Blower HRB802 ring side channel
Up to 215 cfm and 138″H2O (Pressure) or 150″H2O(Vacuum​)

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Edwards E2M40 High Vacuum Pump

ALCATEL ROOTS VACUUM PUMP RSV151B – REFURBISHED

ALCATEL ROOTS VACUUM PUMP RSV300B – REFURBISHED

Perkin Elmer Cryogenic Pumping System

Roots Positive Displacement “PD” Blower – 56 URAI-DSL
Roots Universal RAI Blower Dual Splash Lubricated

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Leybold D60A Trivac Rotary Vane Vacuum Pump Rebuilt FOM

NASH VACUUM PUMP, SIZE AHC-80

TURBOMOLECULAR PUMP ALCATEL 5150 – REFURBISHED

BUSCH WY 0700 Vacuum Blower: Ex Condition 208V on Cart

Alcatel 2063C Roughing Pump, Corrosive Series 3 Phase

Oerlikon Leybold D25BCS Vacuum Rotary Vane Pump Rebuilt
One-day shipping available

Edwards EH-250 Vacuum Pump Blower EH250 Rebuilt:yrwrnty

GAST R6P355R-50 REGENAIR HAZARDOUS-DUTY BLOWER NEW

Rietschle VCEH100 Vacuum Pump VCEH-100 VCEH 100

Rotary Vane Oil Vacuum Pump with Motor MVP-60 NIB

Alcatel 2033C Vacuum Roughing Pump, Corrosive Series

Varian Turbo-V 1800 Vacuum Turbopump 9699061S001

Seiko Seiki TMP Controller STP SCU-H1000C 0190-01036

Ebara Vacuum Turbopump ET600WS need rebuild

Ebara Vacuum Turbopump ET600WS need rebuild

Ebara Vacuum Turbopump Controller 305W-A working

Shimadzu Vacuum Turbopump Controller EI-D3603M new

Alcatel IPUP Dry Vacuum Pump A100L need rebuild

Taiko TDP-600 TDP600 Vacuum Pump untested

Shimadzu TMP Turbopump Cont EI-3203MD-A1 new 3620-01616

BOC Edwards TMS Temperature Management System Kit new
TEL TFN02-000-0000​02-1, TFN02-000-0000​01-1

Shimadzu Vacuum Turbopump TMP 280-L working

Ebara Vacuum Turbopump Controller ET600W new

TEL MKS Valve Pressure Control Kit 99-0100-014 new

Nor-Cal MKS VAT Angle Valve lot used & new AIV AIVP

VAT Pendulum Valve 65048-PH52-AFS1 working

Edwards Vacuum Pump Blower QMB250 rebuilt

Shimadzu 20M 90 Deg Turbopump Cable Set 262-78462-56V1

KLRC40KFA KINNEY VACUUM PUMP, C/S

LPHY3708 SIHI VACUUM PUMP

BECKER TYPE 3.40 VACUUM PUMP

Cycloblower

EBARA ET-300WS Turbo Pump, Tested Good: ET 300 WS
One-day shipping available

Becker KVT 3.80 Vacuum Pump W/ Tank

Pfeiffer Vacuum MVP 015-2 PK T05 100 Dry Pump

Used 7.5 HP Foremost Material Vacuum Pump

LEYBOLD RUVAC DRYVAC 100P AS IS

Alcatel Mod. ADS 501 Dry Pump/Blower package

3 hp Welch Duo-Seal 1398 Vacuum Pump 53 cfm 1×10-4 torr

Edwards E2M40 Rotary Vane Vacuum Pump, 30 cfm 2 HP

NASH HYTOR VACUUM PUMP AL673 LINCOLN MOTOR

VARIAN TV 301 AMAT SQ424 VACUUM PUMP

NASH H7 VACUUM PUMP INLET & OUTLET 6″ C/S REBUILT

Leybold Cryopump System: RGD + RPK with Compressor +++

Lot of 4 LARGE Vacuum Pumps: Alcatel + Leybold– No Res

Leybold TMP50D Turbomolecular Vacuum Pump 55.0 LPS

Varian M6 Diffusion Vacuum Pump 1800.0 LPS

WELCH 1397 DUOSEAL VACUUM PUMP 2 STAGE MODEL 1397U-01

Edwards 250 Water Cooled Trap Used

Leybold Trivac D65B Dual-Stage Rotary Vane Vacuum Pump

Alcatel ADS501 Dry Pump – Used

Osaka TG3213-EM Turbo Pump Used

BOC Edwards QDP40 Dry Pump AS IS

Kinney KTC-60 vacuum pumps,chemical processing,Vacu​um

LEYBOLD RUVAC WS1001/WS-1001 booster/pump AS IS

Edwards Tool Interface Module A52844514 Operational TIM

ULVAC PKS-016 OIL ROTARY VACCUM PUMP, REBUILT

Beach Russ 150 Pump Vacuum Water Suction

KINNEY KTC 60 Pump Vacuum PUMP Suction PUMP

Labconco diaphragm vacuum pump (never used)

NASH AT184 VACUUM PUMP w/ 15 HP MOTOR ON BASE REBUILT

ACL C13170 1.25kW Microwave power source

kinney vacuum pump

20″ Diffusion Pump: Great Condition

VARIAN TURBO-V 300HT Macro Torr TV 300HT PUMP 933Hz

LEYBOLD NRC Rotary Gas Ballast Vacuum Pump Type 400 S

kinney vacuum pump

PNEUMOTIVE MODEL 100-BR ROTARY VANE VACUUM PUMP NEW!
7.5 HP SINGLE PHASE MOTOR GE SIZE 2 STARTER SS PLUMBING

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Triplex Busch control panel, 7.5 HP vacuum system

CTI 8200 HELIUM COMPRESSOR P/N # 8032549G002

Leybold Trivac Model: D90AC Rotary Vane Vacuum Pump

Pfeiffer TPH-500 TPH500 Turbomolecular pump

HORIBA CHEMICAL SOLUTION CONCENTRATION MONITOR CS-100

PFEIFFER BALZERS Turbo Pump TPH 270 nice and clean

OSAKA VACUUM, COMPOUND MOLECULAR PUMP MODEL TG200 LL

Busch Vacuum Pump 5 HP 740-358 G3FN1 ! WOW !

NEW Adixen PASCEL 2005 C1 by Alcatel Vacuum Technology

WELCH 1397 Duo Seal Vacuum Pump Excellent Condition

Alcatel R151B Bypass Blower Prep_Fombiln

LEYBOLD CFS 16-25 TRIVAC VACUUM PUMP ARS16/25

Busch 063-138 Rotary Vane Vacuum Pump 36.0 CFM

Leybold TMP150 Turbomolecular Vacuum Pump 145.0 LPS

Vaccubrand PC3001 Diaphragm Vacuum Pump 1.0 CFM

SEIKO SEIKI STP-300H TURBOPUMP TURBO MOLECULAR PUMP

Varian 917-3500 Cryo Vacuum Pump 8″

Buchi Vacobox B-177 Vacuum pump and B 720 Controller

Buchi Vacobox B-177 Vacuum pump and B 720 Controller #2

Osaka Vacuum TH 350 Turbomolecular Pump & Power Supply!

CTI CRYOGENICS 8033168 8 CRYOPUMP HIGH VACUUM PUMP

Edwards E1M80 Single Stage Vacuum Pump

Alcatel ADS-301 Dry Vacuum Pump/Blower Package

Kinney Liquid Ring Vacuum Pump KLRC-525s

Thoreson McCosh MK 10 Vacuum Pump & Filter #2575

Matrx MaxiMizer 4HP (2×2) Dual Dental Vacuum Pump 230V
8 user – 1 Yr Warranty *DISCOUNT w/ core exchange*

Edwards E2M28 Vacuum Roughing Pump Factory Reman

NASH HYTOR H7 VACUUM PUMP C/S INLET & OUTLET 6″

Oerlikon Leybold WS-151 Vacuum Blower Rebuilt 1 yr wrty

BOC EDWARDS QDP 40 vacuum pump with Silencer, untested

BOC EDWARDS QDP 40 vacuum pump with Silencer, untested

BOC EDWARDS QDP 40 vacuum pump with Silencer, untested

BOC EDWARDS QDP 40 vacuum pump with Silencer, untested

ENI DPGS-10 DC Generator, AMAT 0190-36274, OEM BOX

Becker KVT2.60 Vacuum Pump KVT 2.60 KVT-2.60

OSAKA TG-200 Air Cooled Turbo Pump w/Controller, Cable

MKS ENI GMW-50 RF Generator, untested

US Vacuum 3 HP Vacuum Pump TV63B Busch Clone RA0063

Shimadzu TMP-280-L working

Varian V 300HT Vacuum Pump Controller

Dental Vacuum Pump – 2 Horsepower – Stainless Steel

Tuthill 3202-57T3 Air Blower Vacuum Pump 22.6 cfm 3hp

Pfeiffer TSU-040 Vacuum Pump w/enclosure
One-day shipping available

Leybold D25B Trivac Rotary Vane Vacuum Pump: Rebuilt
Factory rebuild with 1 year warranty: 230/460V 3 phase
One-day shipping available

Stokes 15240-BC 306-41 Blower w/575 Vacuum Pump Station

CTI-Cryogenics 8510 Cryogenic Compressor, Endura PVD

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BrandTech Vacuubrand Membrane Diaphram Vacuum Pump MZ2C

LEYBOLD VACUUM PUMP SV40 9500513 ISO VG 32-100 NEW

4″ Taco KV4007AE2JCA709 Vertical In-Line Pump NEW

LEYBOLD MODEL SV40 95005 VACUUM PUMP NEW

BUSCH WY 0500 Vacuum Blower: Ex Condition 208V on Cart

Leybold-Heraeus D60A Trivac Rotary Vane Vacuum Pump Cat

Vacuubrand MD4C Diaphragm Vacuum Pump Unit 1

RB Alcatel 2033 27CFM Vacuum Pump 1.5hp d/d

Vaccubrand RZ5 Rotary Vane Vacuum Pump 3.2 CFM

Pfeiffer DBP 050 Balzers Dry Vacuum Pump DBP050, Tested

Edwards QDP 40

Cryomech AL125 Cryorefrigerato​r Coldhead Cryo Pump Good

Thoreson McCosh Vacuum Pump & Filter MK7, 7.5 Hp #6250

KITTELL FSU2-5 VACUUM PUMP/BLOWER W/ SUTORBILT 5MP

VAT Pneumatic Gate Valve 12148-PA44-AK01 working

V-Tex Vacuum Rollcam Slit Valve 200803-25-0013-​02 new

Varian Turbo-V 1800 Controller 9699461S002 E23000028

Leybold Varian Turbopump Controller NT 1000 112087001

EDWARDS DRYSTAR DRY PUMP QDP40

High Vacuum Research Chamber UV Plasma MDC Quartz Glass

EDWARDS DP80 Dry Vacuum Pump, used, as is

Adixen/Alcatel Vacuum 5101 Turbo Pump Tested Good
One-day shipping available

ENI OEM-25A-21091-5​1 RF Generator, 2500 W, 13.56 MHz,

Hill-rom 3 HP Vacuum Pump – Medaes / Busch – RA-0063

Leybold Pump and Converter

Leybold rotary lobe blower pump WAU251

vacuum receiver tank, 200 gallon vertical

EBARA ET300 VACUUME TURBO MOLECULAR PUMP

Oerlikon Leybold SV65 Sogevac Vacuum Pump SV-65 Rebuilt
One-day shipping available

Rietschle VCE-60 Pump

KNF Diaphragm Oil-Free Vacuum Pump N920KT.29.18

Leybold Heraeus Trivac D60A Rotary Vane Vacuum Pump

Dri-Eaz Flood King DX Deep Water Extraction Machine

ENI GHW-12Z Genesis RF Generator 1250W, AMAT 0190-09832

ROTARY VANE VACUUM PUMP ALCATEL 2033 – REFURBISHED

TURBOMOLECULAR PUMP ALCATEL 5080 – REFURBISHED

TURBOMOLECULAR PUMP ALCATEL 5100 – REFURBISHED

TURBOMOLECULAR PUMP ALCATEL 5100 DET – REFURBISHED

TURBOMOLECULAR PUMP ALCATEL 5100 DET / REFURBISHED

TURBOMOLECULAR PUMP ALCATEL 5101 – REFURBISHED

1-1/4 HP Busch RC-0021 Vacuum Pump new in crate 110V

ALCATEL TURBOMOLECULAR PUMP 5080 – REFURBISHED

ROTARY VANE VACUUM PUMP SOGEVAC SV40 – REFURBISHED

Rietschle Elmo Vacuum Pump VGD 10 (01) NEW!

ALCATEL TURBOMOLECULAR PUMP 5100 – REFURBISHED

Leybold Heraeus Trivac D60A Rotary Vane Vacuum Pump

Vacuubrand Diaphragm Vacuum Pump MD4C

Vacuubrand MD4C Diaphragm Vacuum Pump (2) 500ml Flask

CTI-Cryogenics On-Board 8F Cryopump 8116081G005

CTI-Cryogenics On-Board P300 Cryopump 0190-27350

CTI-Cryogenics On-Board P300 Cryopump 8116250G002

CTI-Cryogenics On-Board P300 Cryopump 0190-12086

CTI-Cryogenics On-Board P300 Cryopump 8116250G002

CTI-Cryogenics On-Board P300 Cryopump 8116250G002

CTI-Cryogenics On-Board P300 Cryopump 8116250G001

CTI-Cryogenics On-Board 8F Cryopump 8116244G002

CTI-Cryogenics On-Board 8F Cryopump 8116244G001

VAT Pneumatic Gate Valve 12148-PA44-AK01​/0004 working

Seiko Seiki Turbopump Controller STP-F2203C working

CTI-Cryogenics On-Board P300 Cryopump 8116250G001

CTI-Cryogenics On-Board P300 Cryopump 0190-12086

CTI-Cryogenics On-Board P300 Cryopump 8116250G002

CTI-Cryogenics On-Board P300 Cryopump 8116250G002

CTI-Cryogenics On-Board P300 Cryopump 8116250G001

CTI-Cryogenics On-Board P300 Cryopump 8116250G001

CTI-Cryogenics On-Board P300 Cryopump 8116250G001

CTI-Cryogenics On-Board P300 Cryopump 0190-27355

CTI-Cryogenics On-Board P300 Cryopump 8116250G002

CTI-Cryogenics On-Board P300 Cryopump 8116250G001

CTI-Cryogenics On-Board P300 Cryopump 0190-12085

CTI-Cryogenics On-Board P300 Cryopump 8116250G002

CTI Cryogenics On-Board P300 Cryopump 8116250G002

Varian TV 301 Vacuum Turbopump 7698918 need rebuild

CTI-Cryogenics On-Board 8F Cryopump w/ACM 8116081G006

VAT Pneumatic Gate Valve 10846-UE24-ALK1 new 3870-03478

CTI-Cryogenics On-Board P300 Cryopump 0190-12085

CTI-Cryogenics On-Board 8F w/ACM Cryopump 8116081G006

Edwards Dry Vacuum Pump iQDP80 Untested, AS-IS

Granville-Phill​ips 307 Vacuum Gauge Controller working

CTI-Cryogenics On-Board 8F Cryopump 8116081G006

Granville-Phill​ips 307 Vacuum Gauge Controller working

Leybold Turbopump Controller Turbo.Drive TD20 new

CTI Cryogenics On-Board P300 Cryopump 8116250G002

Edwards Multi Stage Dry Vacuum Pump DP 40 working

Seiko Seiki Turbopump Controller STP-H1301L1 working

Seiko Seiki STP-H1301L1B Turbopump Controller working

Shimadzu Vacuum Turbopump TMP-203LM

LPHA20103 SIHI VACUUM PUMP

Becker Pumps Corp. Vacuum Pump w/ TECO MAX E1 motor

PFEIFFER Turbo Pump TMH 262 P with TC100 Controller

NASH ELMO SIEMENS VACUUM PUMP 2BL1101-2NKO1-2​S 30MBAR

NEW Masport HXL75 Vacuum Pump, oil field, septic

Alcatel 2033 Vacuum Pump: Tests to 15 Microns, Ex Cond

PFEIFFER BALZERS TYPE TPU 330 PLASMA TURBO VACUUM PUMP

High Pressure Blower M-D Pneumatics Tuthill 8″ 1800 CFM

Ebara 40×20 Vacuum Pump

Leybold WSU 501 Booster Pump – Used

Nash CL 2002 core for rebuild

Nash Size H9 core for rebuild

Nash Size L core for rebuild

Becker KVT3.14 Vacuum Pump KVT 3.14 KVT-3.14

Sorption Roughing Pumps, Quad system

Busch WY700 Booster Pump – Used

BECKERT & HIESTER FILTRATION SYSTEM

BIGIESSE SILVAN 4 HP VACUUM PUMP WITH RECEIVER TANK

Leybold WS 151 Booster Pump – Used

Vacuum Pump Model ZYB80A

Leybold WAU 500 Booster Pump – Used

Busch Vacuum Pump: Type RC0063-E 506-1001

leybold turbovac 361 pump

Busch WY500 Booster Pump – Used

Edwards E2M40 + EH250 on Frame Pump Combination – Used

CTI Cryogenics Cryo-Torr 8F Vacuum Pump

Busch RC0160-B032-100​1 Vacuum Pump 117CFM 7.5HP 230V

Rietschle Elmo Vacuum Pump Type VPR 500 20 HP Motor

Alcatel Turbopump Controller ACT 1300M 3930-01149

Leybold Trivac Model: D60AC Rotary Vane Vacuum Pump

Alcatel/AMAT IPUP A100L A100 L Compact Dry Vacuum Pump

RECONDITIONED REIMELT ROTARY DISCHARGE VALVE TYPE 15

GD CYCLOBLOWER POSITIVE DISPLACEMENT BLOWER 5CDL13F

C65584 Perkin Elmer 1002700 Vacuum Ion Pump System

Huges Turbo Molecular Sargent-Welch Vacuum Station Pump
Complete Station-CHA Controller-Tec​umseh-Mdl 3120-LACaL

SAE Getters Mono Torr Model: PS3MT3R1 Gas Purifier

Seiko Seiko H1000L Turbo Molecular Pump Control Unit

NICE CTI CRYO-TORR 8 HIGH VACUUM PUMP HELIX

NRC DIFFUSION PUMP SYSTEM WITH CHAMBER GATE VACUUM SYST

Edwards EXT255H Compound Turbomolecular Vacuum Pump

Ruvac Leybold Roots Blower Pump WSU250 ++

Ebara Vacuum Turbopump Controller ET600W w/ Battery

42G OMEGA INDUSTRIAL BLOWER (Complete) 40hp

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Skid mounted Busch Vacuum pump system RC0025E 20CFM

专业销售进口DCS  PLC系统备件模块

PLC模块,可编程控制器,CPU模块,IO模块,AI模块,通讯模块。AB/施耐德/ABB/GE/本特利/西屋/英维斯/霍尼韦尔/黑马/FU克斯波罗

15天包退换 一年质保 大量现货  国内实力库存商家


选择深圳长欣,选择放心,售后无忧大量现货,当天顺丰发货!
主营: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。

先介绍几点经验。
1、先通读一遍“系统手册”(不管能不能看懂,先了解个大概,以便学习编程时查找);
2、由位控逻辑入手,逐渐增加定时、计数等条件,把或、与、非关系理顺;
3、进而练习整数运算、实数运算、类型转换;
4、量程转换、PID调节回路的建立及P、I、D参数的理解(最好是有个物理回路验证,比如变频器+电机+测速传感器);
5、循环、顺序、跳转等程序控制(尽量避免跳转,非跳不可时也是跳的越近越好);
6、中断、通讯、位置控制....

本人以ABB工业机器人配件DSQC系列和Motorola MVME系列,GE 卡件 模块 驱动器系列为主攻。各位电工朋友可根据自己的条件选择适合自己的PLC品牌,由于PLC的基本框架大同小异,学会一种至于其它的学习起来也就简单了。