8V1090.001-2

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描述

8V1090.001-2

影響PLC控制系統(tǒng)的干擾源,大都產(chǎn)生在電流或電壓劇烈變化的部位,其原因是電流改變產(chǎn)生磁場,對設(shè)備產(chǎn)生電磁輻射;磁場改變產(chǎn)生電流,電磁高速產(chǎn)生電磁波。通常電磁干擾按干擾模式不同,分為共模干擾和差模干擾。共模干擾是信號對地的電位差,主要由電網(wǎng)串入、地電位差及空間電磁輻射在信號線上感應(yīng)的共態(tài)(同方向)電壓疊加所形成。共模電壓通過不對稱電路可轉(zhuǎn)換成差模電壓,直接影響測控信號,造成元器件損壞(這就是一些系統(tǒng)I/O模件損壞率較高的主要原因),這種共模干擾可為直流,亦可為交流。差模干擾是指作用于信號兩極間的干擾電壓,主要由空間電磁場在信號間耦合感應(yīng)及由不平衡電路轉(zhuǎn)換共模干擾所形成的電壓,這種干擾疊加在信號上,直接影響測量與控制精度。

良好的接地是保證PLC可靠工作的重要條件,可以避免偶然發(fā)生的電壓沖擊危害。接地的目的通常有兩個,其一為了安全,其二是為了抑制干擾。完善的接地系統(tǒng)是PLC控制系統(tǒng)抗電磁干擾的重要措施之一。
PLC控制系統(tǒng)的地線包括系統(tǒng)地、屏蔽地、交流地和保護地等。接地系統(tǒng)混亂對PLC系統(tǒng)的干擾主要是各個接地點電位分布不均,不同接地點間存在地電位差,引起地環(huán)路電流,影響系統(tǒng)正常工作。例如電纜屏蔽層必須一點接地,如果電纜屏蔽層兩端A、B都接地,就存在地電位差,有電流流過屏蔽層,當發(fā)生異常狀態(tài)如雷擊時,地線電流將更大。
此外,屏蔽層、接地線和大地有可能構(gòu)成閉合環(huán)路,在變化磁場的作用下,屏蔽層內(nèi)又會出現(xiàn)感應(yīng)電流,通過屏蔽層與芯線之間的耦合,干擾信號回路。若系統(tǒng)地與其它接地處理混亂,所產(chǎn)生的地環(huán)流就可能在地線上產(chǎn)生不等電位分布,影響PLC內(nèi)邏輯電路和模擬電路的正常工作。PLC工作的邏輯電壓干擾容限較低,邏輯地電位的分布干擾容易影響PLC的邏輯運算和數(shù)據(jù)存貯,造成數(shù)據(jù)混亂、程序跑飛或死機。模擬地電位的分布將導致測量精度下降,引起對信號測控的嚴重失真和誤動作。

產(chǎn)品承諾:
保?證?全新原裝進口,
保?證?安全準時發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢價格,大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家

COMPAQ DS-BA356-SE 7 DEVICE 16BIT SBB SHELF

COMPAQ 340834-001 DLT7000 35/70GB S-DIFF L.READY

COMPAQ 422869-002 COMPAQ SERVER NETII CARD

COMPAQ NAS S1000/384MB NAS S1000 384MB MEMORY KIT

COMPAQ 402230-001 DLT7000 35/70GB TAPE DRIVE W/HOUSING

COMTROL 95900-7 COMTROL ROCKETPORT 32 PCI SERIAL ADAPTE

COMPAQ 241375-001 4100 STORAGE ENCLOSURE CHASSIS

COMPAQ DEINA-AA ROAMABOUT PCMCIA ADAPTER

COMPAQ 728956-005 MODULE

COMPAQ DVNXX-MX DEC VNSWITCH 900XX

COMPAQ DS-SWXHB-07 FIBRE CHANNEL 7-PORT STORAGE H

COMTROL 96500-8 COMTROL ROCKETPORT RM16 RJ45

DEC 30-56120-02 3 CHANNELS SCSI RAID CONTROLLE

DEC 54-19375-01 DEFEB APPLICATION PROC.

DEC 54-16853-01 PC500 RAM BOARD 2MB

DEC 54-22229-01 32MB READ CACHE MODULE

DEC 54-19481-01 VAX FT SUMMARY MAIN PANEL

DEC 54-19409-01 DEFEB-LA NI MODULE MULTI-

DEC 54-22444-01 DEC KFDDA-AF DUAL CARD

DEC 54-22414-01 MODULE

DEC 54-23242-01 ALPHASTATION 600 300MHZ MODUL

DEC 54-22589-02 MODULE.

DEC 54-24758-01 DS20 CPU MODULE ASSM

DEC 54-23468-01 DWLPA PCIA MOTHER BOARD

DEC 54-22631-01 ALPHA VME 2100 PCI TO VME

DEC 54-30194-01 GS80/160/320 H-SWITC PWS

DEC 54-25074-01 ALPHA SERVER GS320 PSM

DEC 70-13578-00 TS11 REEL MOTOR ASSY

DEC 70-24041-01 FRONT DOOR ASSY

DEC 54-25037-01 DEC STARFIRE MODULE

DEC 54-24776-01 VAX7000 CLOCK MODULE

DEC 70-29335-01 VAX 7000 EXP BOX

DEC 54-24544-03 MOTHERBOARD

DEC 70-14533-02 LA120 MECHANICAL ASSY W/P.HEAD

DEC 54-30434-01 HSV110 MODULE

DEC 70-30711-01 TZ87 TAPE HEAD *TESTED GOOD*

DEC 70-28602-01 BA213 RF DISK BACKPLANE

DEC 70-32195-02 HSZXX CONTROLLER MODULE

DEC 70-33250-03 DS-DWZZH-05 BLUE HUB

DEC 70-32194-02 DEC SCSI/DSSI CONTROLLER BOARD

DEC 70-33276-01 IO MODULE ASSY

DEC 70-33249-03 PERSONALITY CARD DIFF TO 2 SCSI

DEC 872-E DEC TU78 872-E POWER SUPPLY

DEC 70-28868-01 SA106 / TF787 POWER CONTROLLER

DEC B2012-BA MODULE

DEC 70-60370-08 35/70GB DLT7000 SCSI TAPE DRIVE

DEC 70-33544-01 IO MODULE ASSY

DEC B4190-BA STANDAR I/O W/USB PORTS

DEC 74-50640-01 FRONT COVER BLUE 5100

DEC BA356-SC 7 DEV SHELF, NO I/O MODUL

DEC DEFBB-M DECSWITCH 900FO

DEC B4171-AD DEC COOPER I/O RISER MODULE REV. A6

DEC DECOM-AA COMMUNICATION SINGLE PORT

DEC BA356-RA 16 BIT ENCLOSURE

DEC DEXBR-M DEC ROUTEABOUT ACCESS EI

DEC DEFGT-BA GIGASWITCH FDDI MODULE

DEC DETPX-M PORTSWITCH 900TP/12

DEC H7506-AA GS160/320 POWER SUPPLY-1600W

DEC DESSL-AB ATM MODULE 2PTS-155MBPS

DEC DEFPA-UC PCI TO FDDI NIC WITH RJ45

DEC DEFPZ-AA FDDI CONTROLLER/PMC

DEC FD-52920-01 DEC LA600 PRINTHEAD

DEC H7861 VAX 11/23 POWER SUPPLY

DEC KZPBA-DY DUAL CNL ULTRAW ADAPTER

DEC DESNC-BA LAN ENCRYPT DEV W/ETH.

DEC FD-51859-01 LG05S/LGPLUS TOP COVER ASSY

DEC DSRVY-MA DECSERVER 900GM

DEC KZPBA-DB DUAL CNL ULTRAW ADAPTER

DEC L0122-AF VAX 8550/8800 64MB MEMORY

DEC H7853-AA VAX 6210 POWER SUPPLY

DEC LJ550 INKJET COLOR PRINTER

DEC H7877 BA23 OLD STYLE POWER SUP

DEC L0121 M.CACHE HSC95 OPTION 32MB

DEC HS1CP-C DEC SCSI/DSSI CONTROLLER BOARD

DEC H7423-AA TU78/79 POWER SUPPLY

DEC M7639 SEE MS200

DEC M8208 MODULE

DEC M8016-YB MODULE

DEC MS7CC-UA UPGRADE MEMORY KIT

DEC MS7CC-GA DEC 4 GB MEMORY FOR ALPHASERVER 8XXX

DEC MTXLB-AA 60 KEY POS KEYBOARD WITH

DEC MSP01-KB 256MB MEMORY KIT

DEC MS520-BA 32 MG MEMORY MODULE

DEC MS451-FA 512MB MEMORY ALPHA 2100

DEC MS88-DA VAX 8550/8800 64MB MEMORY

DEC PMTNV-A CARD

DEC PS1XG-AA VIDEO GRAPHICS ADAPTER W/MOUSE

DEC SHZ35-ZZ SCSI CONVERTER BOX

DEC VT420-AC MONO WHITE TERMINAL W/KEYBOARD

DEC RF-VS240-A RF-VT240 BASE UNIT

DEC RZ57-UK RZ57-UK

DEC T1061 VAX 6000 MODULE

DEC RF-VS240 RF-VT240 BASE UNIT

DEC VT420-AB MONO WHITE TERMINAL W/KEYBOARD

DEC SWXSS-01 EXPANSION STORAGE

DEC SWSA1-BC SW ADAP-SUN DIFF/FAST SCSI

DEC T2029-AC VAX7000.620 MODULE

DEC T2025 MODULE

DEC SHZH1-DT HARD DRIVE IN CANISTER

DELL 330NK DELL POWEREDGE MOTHERBOARD

GENICOM CA02626-E240 LN40 TONER HOPPER

GENICOM CA02626-E304 LN40 PAPER FEED ASSY 3

HEWLETT PACKARD 005-44289 HP MOTHER BOARD

GENICOM CA02626-E301 LN40 PART

EMC 005040997 CLARIION POWER SUPPLY

GENICOM CA02626-E250 LN40 TONER HOPPER

EMC 005-41330 10SLOT INTERCONNECT PCB

HEWLETT PACKARD 107003856-00 HP MOTHER BOARD

HEWLETT PACKARD 5150-60023 VERTICAL DRIVE ASSEMBLY

HEWLETT PACKARD A2699-66001 HP 10/100 LAN INTERFACE

HEWLETT PACKARD C1107-69032 HP 206W 5/12V POWER SUPPLY

HEWLETT PACKARD 98268-66520 4MB PCB MEMORY MODULE

HEWLETT PACKARD C1160-67936 HP OPTICAL JUKEBOX CTRL BOA

HEWLETT PACKARD A3641-80022 KX70/98KS 180MHZ PROCESOR B

HEWLETT PACKARD C1160-66508 HP OPTICAL JUKEBOX SCSI BOA

HEWLETT PACKARD 630214-202 NETSERVER DUAL PROCESSOR BOA

HEWLETT PACKARD A2982-60001 HP X60 PROCESSOR BOARD

HEWLETT PACKARD C3232A HP C3232A ENTRIA TERMINAL

HEWLETT PACKARD A2375-60097 K200 SYSTEM BOARD

HEWLETT PACKARD C1107-60032 HP 206W 5/12V POWER SUPPLY

HEWLETT PACKARD D3338-60001 NETSERVER DUAL PROCESSOR BO

HEWLETT PACKARD A6386A HyperFabric2 PCI 4X fiber adap

HEWLETT PACKARD C5173-89007 DLT7000 35/70GB TAPE DRIVE

HEWLETT PACKARD C4118-69001 FUSER KIT HP4000

HEWLETT PACKARD C7200-66521 HP SURESTORE FC INTERFACE B

HEWLETT PACKARD C7200-60006 HP SURESTORE FC INTERFACE B

HEWLETT PACKARD J3136-90001 HP ADVANCESTACK PWS REDUNDA

HEWLETT PACKARD J3136-61001 HP ADVANCESTACK PWS REDUNDA

HEWLETT PACKARD J3299A HP PROCURVE SWITCH 224M

HEWLETT PACKARD C7200-61521 HP SURESTORE FC INTERFACE B

HITACHI 667830-004 VISIONBASE 8460 CARRIER MEMORY

HITACHI 667829-304 VISIONBASE 8460 CARRIER MEMORY

HITACHI 667383-005 VISIONBASE 8460 POWER SUPPLY

HEWLETT PACKARD D6530-60005 D6530-60005

HITACHI 662379-404 VISIONBASE 8460 MOTHERBOARD

HIT 2098174-A 3PHASE AC POWER SUPPLY

IBM 04N4317 IBM 940X OPERATOR PANEL ASSY

HEWLETT PACKARD ZTC22942680 HP POWER SUPPLY

HITACHI DPS-420CB VISIONBASE 8460 POWER SUPPLY

HITACHI 671317-007 VISIONBASE 8460 MOTHERBOARD

IBM 00G3165 7013 I/O PLANER BOARD

HEWLETT PACKARD J3136A HP ADVANCESTACK PWS REDUNDANT

IBM 00G2503 650W POWER SUPPLY

HITACHI 668492-004 VISIONBASE 8460 BACKPLANE MOD.

IBM 07H5225 IBM POWER CABLE ASSY

IBM 05J8924 IBM DUAL CHANNEL SCSI ADAPTER

HITACHI 668445-204 VISIONBASE 8460 BACKPLANE MOD.

IBM 05J8911 IBM MEMORY CARRIER MODULE

IBM 07H6255 IBM 9672 TESTER BOX ASM

IBM 21F9345 IBM 9406-F80 CABLE 2 PORT ADA

IBM 09G7649 IBM 3490 READ DETECT CARD

IBM 31G9751 SYSTEM BOARD

IBM 31G9740 7013 I/O PLANER BOARD

IBM 34L3582 IBM MODULE ASSY

IBM 37L2406 AGP 3D-PRO 4110 VIDEO CARD

IBM 44H2731 IBM ACI-4M SYSTEM POWER

IBM 44H2721 IBM PBE-5M 9672MODULE ASSY

IBM 44H8304 IBM 940X SPCN MODULE

IBM 32G1924 SYSTEM BOARD

IBM 65G7623 SYSTEM BOARD

IBM 65G7622 SYSTEM BOARD

IBM 45G2781 IBM 4-PORT MODULE

IBM 44H8421 IBM 940X REMOVABLE MEDIA CAGE

IBM 59H7486 IBM 2105 I/O ATTACHMENT CARD

IBM 8184913 IBM 7013 CPU PLANAR

IBM 93H2641 IBM MEMORY CARRIER MODULE

IBM 44H7779 IBM 940X POWER SUPPLY

IBM 60H0558 IBM QD82 FIBER CHANNEL ADAPTER

IBM 44H7777 IBM 940X 200-240V POWER SUPPLY

INTERPHASE 9000-0751-006 INTERPHASE 9000-0751-006 BOARD

IBM 8193663 IBM AS/400: HIGH SPEED COMM IO

JNI FCE-1473-N JNI 2GB FC HOST BUS ADAPTER

MARCONI NM-4/155UTP5C MARCONI 4-PORT 155MBPS MODULE

LUCENT 750A030150 LUCENT PACKETSTAR ICM CARD

MARCONI NM-4/155MMSCE 4-PORT OC3 MULTIMODE MODULE

MARCONI 7401-00 FORE POWERHUB 7000 ATM

MARCONI NM-4/155MMSCD FORE 4-PORT 155MBPS MODULE

MISC 01-03E121202 RACAL-MILGO OMNIMODE96 UNIT

MARCONI NM-1/622MMSCD FORE 1-PORT 622MBPS MODULE

MARCONI ESX-48-FAN ESX-4800 FAN TRAY ASSY

LSI 356-0003856B QUAD-PORT 10/100 ETNET ALPHA

MARCONI NM-4/155UTPLC MARCONI 4-PORT 155MBPS UTP

MISC 311-0006-002 GS/E SWITCH CONTROL MODULE

MARCONI NM-4/155UTP5LC FORE 4-PORT 155MBPS MODULE

MISC 55000325 PC/XEM HOST ADAPTER BOARD

MISC 6210518-01 TL810 Y-AXIS UMBILICAL CABLE

MISC 22946600 ARTYSAN POWER SUPPLY

MISC 40004049-001 DIAMOND FIRE GL4000 VIDEO CARD

MISC 6210480-01 TL810 X-CARRIAGE INTERCO-

MISC 640QT-C2 RT-VAX 3305 BOX

MISC 04006-T90 PCMCIA ROAMABOUT

MISC 0MNIMODE 96 RACAL-MILGO OMNIMODE96 UNIT

MISC 530-0022-001 GS/E SWITCH CONTROL MODULE

MISC 600-ATX DUALPOWER 600 ATX PWS 600W

MISC 34-44529-09 34-44529-09

MISC 530-0011-001 DGBGA-AA BACKPLANE BOARD

MISC 10273-01B LOAD CARD ASSY

MISC 520-0022-001 GS/E SWITCH CONTROL MODULE

MISC 140E38452 LN28 POWER SUPPLY 115V

MISC 2T-ADPDG-AB DIGI PORTS

MISC 5190020G2 LEESON HUB MOTOR 60HZ

MISC 9720-736 736MB SABRE DRIVE W/PWS*AS IS*

MISC A6C34DC34B LEESON HUB MOTOR 60HZ

MISC 933-0004-001 DGBGA-AA BACKPLANE BOARD

NORTEL 700231-001 100-240VAC POWER SUPPLY

PCB 200007B-06 1GB BASE SX PCI FIBRE CHANNEL

PERTEC 77021240 TU80/81 MODULE

PRINTRONIX 110988-901 PRNTRONIX SHUTTLE AASY

NETAPP XL401R-S-02Z NETAPP SE SHELF STORAGE ARRAY

QUADRICS QM400 AS SC40/SC45 INTERFACE MODULE

NORTEL NTEP05AA-05 NORTEL PASSPORT TERMINATOR MOD

MYRICOM M2F-PCI32 MYRICOM INTERFACE MODULE

PRINTRONIX 112315-001 PRINTRONIX IGP-2X0 CONFG. BOAR

PRINTRONIX 112313 PRINTRONIX IGP-2X0 CONFG. BOAR

PRINTRONIX 152939-001 PRINTRONIX IGP-2X0 CONFG. BOAR

QUANTUM TH5XB-NP 20/40 DLT FOR TAPE LIBRARY

QMS 1710193-001 QMS MAGICOLOR 2 OPC BELT

QUANTUM TH5AA-EL DLT4000 TAPE DRIVE SCSI-SE*BLA

SUN 370-3531 POWER SUPPLY W/O SWITCH

QUANTUM TH4AB-YF 10/20GB INT. DIFF TAPE DRIVE

QUALSTAR 500826-01-1 QUALSTAR 4440 HANDLER PWS

ZIATECH COMPACTPCI ZT-5610B PMC CARRIER BOARD ZT-5610

DEC VAX PDP CMD CQD-423/TM QBUS SCSI CONTROLLER MODULE

COMPAQ ALPHASERVER DS10L 6/466MHZ, 512MB DA-71AAA-EA

CS11 PDP 11/44 Emulex Module CS1110201-H2

DEC 54-24719-02 AS1000 5/300 CPU

DEC 54-22499 DEFPA PCI/FDDI ADAPTER

QUANTUM/PITTMAN 6204257-01 TL82X VERTICAL MOTOR

DEC DSRZF-E MUXSERVER 90

COMPAQ 401912-001 SHELF WIDE DEVICE BA356-CLEAN

DEC 3R-A2407-AA CPQ 35/70GB AIT-1(LVD) INT.TAPE-CARBON

DEC 3R-A2493-AA CPQ 35/70GB AIT-1(LVD) INT.TAPE-CARBON

DEC 54-19811-02 KN02- VAX 5000-240 CPU

DEC 54-22501-01 FIBER OPTIC OPTION MODULE

DEC 54-24544-01 MOTHERBOARD

DEC 54-23225-01 LN09 DISK DAUGHTER CARD

DEC 54-24574-02 ST RISER CARD MODULE

DEC 54-30210-01 MODULE.

DEC 54-25125-01 BA54A CSB DISTRIBUTION MODULE

DEC 70-29951-03 BLUE COVER PANEL

DEC 70-40073-01 ES40 FAN

DEC A8154 PCI/TOKEN RING NETWORK ADAPTER

DEC H720-E POWER SUPPLY

DEC H3220 20 MA ADAPATER PDP11/70

DEC DSW42-AA SYNC LOGIC MODULE

DEC M7732 OPT CHAR SET MODULE

DEC MSP01-HF COMP 512MB MEMORY KIT COMPATIBLE

DEC RZ73-MX RZ73-E DISK DRIVE WITH

HEWLETT PACKARD A1809-60129 HP POWER CONTROL MODULE

HEWLETT PACKARD A5599-70001 HP DLT8000 SCSI-HVD LOADER

HEWLETT PACKARD A6384-69002 HP HFW 8 PORT FIBER CARD

HEWLETT PACKARD A1809-60030 HP POWER CONTROL MODULE

HEWLETT PACKARD A1809-60017 HP PCBA BACKPLANE W/TRAY

HEWLETT PACKARD C3971A HP 5SI MAINTENANCE KIT

HEWLETT PACKARD C7200-60110 HP REMOTE MANAGEMENT CARD

HEWLETT PACKARD RG5-3027-000 HP LJ 8550 PW MODULE

MISC 155-0185-01 32Z PCI VIDEO BOARD DUAL

MISC 29-26372-00 TU80/81 POWER SUPPLY

NATIONAL INSTRUMENTS AT-GPIB-TNT NATIONAL INST. INTERFA

SUN 348-0036690B SUN SCSI DIFF-DUAL CONTROLLER

SUN 348-0036 SUN SCSI DIFF-DUAL CONTROLLER

SUN 501-1855 SUN IPI-2 DISK CONTROLLER MODU

COMPAQ 157301-B21 CPQ TL891DLX EXPANSION UNIT LVD

COMPAQ 157301-001 CPQ TL891DLX EXPANSION UNIT LVD

COMPAQ 306257-001 POWER SUPPLY WITH SWITCH

DEC H7266-AA DEC POWER REGULATOR UNIT

PRINTRONIX 109925-001 PRINTRONIX P6080 PCBA LOGIC

PRINTRONIX 140386-001 PRINTRONIX P6080 PCBA LOGIC

COMPAQ 190711-002 CL DRIVE INTERFACE BOARD KIT

HP A9794A HPTC CLUSTER SVR 900MHZ BASE SYSTEM

HP A9794B INTEGRITY RX2600 CLUSTER SERVER

DEC DLMT2-MA MULTISWITCH FAST ETHERNET HUB 924TX DLMT2-

DEC 54-24385-01 ALPHA SERVER 2100 4 SLOTT

專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊

PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家


選擇深圳長欣,選擇放心,售后無憂大量現(xiàn)貨,當天順豐發(fā)貨!
主營:本特利,英維思,伍德沃德,??怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點經(jīng)驗。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個大概,以便學習編程時查找);
2、由位控邏輯入手,逐漸增加定時、計數(shù)等條件,把或、與、非關(guān)系理順;
3、進而練習整數(shù)運算、實數(shù)運算、類型轉(zhuǎn)換;
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解(最好是有個物理回路驗證,比如變頻器+電機+測速傳感器);
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制(盡量避免跳轉(zhuǎn),非跳不可時也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學會一種至于其它的學習起來也就簡單了。