140DDI35310 Schneider140DDI35310 Schneider

PLC控制系統(tǒng)設(shè)計(jì)步驟可用流程圖來(lái)表示。這種設(shè)計(jì)方法與傳統(tǒng)的繼電器——接觸器控制系統(tǒng)的設(shè)計(jì)相比較，組件的選擇代替了原來(lái)的器件選擇，程序設(shè)計(jì)代替了原來(lái)的邏輯電路設(shè)計(jì)。
（1）根據(jù)工藝流程分析控制要求，明確控制任務(wù)，擬定控制系統(tǒng)設(shè)計(jì)的技術(shù)條件。技術(shù)條件一般以設(shè)計(jì)任務(wù)書的形式來(lái)確定，它是整個(gè)設(shè)計(jì)的依據(jù)。工藝流程的特點(diǎn)和要求是開發(fā)PLC控制系統(tǒng)的主要依據(jù)，所以必須詳細(xì)分析、認(rèn)真研究，從而明確控制任務(wù)和范圍。如需要完成的動(dòng)作（動(dòng)作時(shí)順、動(dòng)作條件，相關(guān)的保護(hù)和聯(lián)鎖等）和應(yīng)具備的操作方式（手動(dòng)、自動(dòng)、連續(xù)、單周期，單步等）。
（2）確定所需的用戶輸入設(shè)備（按鈕、操作開關(guān)、限位開關(guān)、傳感器等）、輸出設(shè)備（繼電器、接觸器、信號(hào)燈等執(zhí)行元件）以及由輸出設(shè)備驅(qū)動(dòng)的控制對(duì)象（電動(dòng)機(jī)、電磁閥等），估算PLC的I/O點(diǎn)數(shù)；分析控制對(duì)象與PLC之間的信號(hào)關(guān)系，信號(hào)性質(zhì)，根據(jù)控制要求的復(fù)雜程度，控制精度估算PLC的用戶存儲(chǔ)器容量。
（3）選擇PLC。PLC是控制系統(tǒng)的核心部件，正確選擇PLC對(duì)于保證整個(gè)控制系統(tǒng)的各項(xiàng)技術(shù)、經(jīng)濟(jì)指標(biāo)起著重要的作用，PLC的選擇包括機(jī)型的選擇、容量的選擇、I/O模塊的選擇、電源模塊的選擇等。選擇PLC的依據(jù)是輸入輸出形式與點(diǎn)數(shù)，控制方式與速度、控制精度與分辨率，用戶程序容量。

鄭娟萍

廈門仲鑫航自動(dòng)化設(shè)備有限公司  

（4）分配、定義PLC的I/O點(diǎn)，繪制I/O連接圖。根據(jù)選用的PLC所給定的元件地址范圍（如輸入、輸出、輔助繼電器、定時(shí)器、計(jì)數(shù)器。數(shù)據(jù)區(qū)等），對(duì)控制系統(tǒng)使用的每一個(gè)輸入、輸出信號(hào)及內(nèi)部元件定義的信號(hào)名和地址，在程序設(shè)計(jì)中使用哪些內(nèi)部元件，執(zhí)行什么功能格都要做到清晰，無(wú)誤。
（5）PLC控制程序設(shè)計(jì)。包括設(shè)計(jì)梯形圖、編寫語(yǔ)句表、繪制控制系統(tǒng)流程圖。控制程序是控制整個(gè)系統(tǒng)工作的軟件，是保證系統(tǒng)工作正常，安全。可靠的關(guān)鍵，因此，控制程序的設(shè)計(jì)必須經(jīng)過(guò)反復(fù)測(cè)試。修改，直到滿足要求為止。
（6）控制柜（臺(tái)）設(shè)計(jì)和現(xiàn)場(chǎng)施工。在進(jìn)行控制程序設(shè)計(jì)的同時(shí)，可進(jìn)行硬件配備工作，主要包括強(qiáng)電設(shè)備的安裝、控制柜（臺(tái)）的設(shè)計(jì)與制作、可編程序控制器的安裝、輸入輸出的連接等。在設(shè)計(jì)繼電器控制系統(tǒng)時(shí)，必須在控制線路設(shè)計(jì)完成后，才能進(jìn)行控制柜（臺(tái)）設(shè)計(jì)和現(xiàn)場(chǎng)施工。可見，采用PLC控制系統(tǒng)，可以使軟件設(shè)計(jì)與硬件配備工作平行進(jìn)行，縮短工程周期。如果需要的話，尚需設(shè)計(jì)操作臺(tái)、電氣柜、模擬顯示盤和非標(biāo)準(zhǔn)電器元部件。

Cisco 34068701 7200 SERIES PSU Power Supply UNIT

Delta Electronics A76009-007 AC Power Module 0950-4490

ATRICA AT20007-00-AC FAST ETHERNET ACCESS MODULE 8 PORT (Nokia Siemens Networks)

GARRETT MAGNUM DS880 MODEL:DS880B-48DVC 10/100 DUAL-SPEED STACKABLE HUB

NOKIA 469111A UUHA SYNCHRONIZATION CABLE

GENERAL INSTRUMENT SR-3200 MAGNITUDE PROFESSIONAL SALITE RECEIVER

Lot of 10 Wirewerks Patchcord Multi-Mode 62.5 DUA P/N: PC-2E-SCCSCC-003

NOR NETWORKS NTN451HA (HECI:SNPQCMZ2AA) OPTA3500 20A I/O PWR

NOR NETWORKS NTNP20AA (HECI:SAPUEE0DAA) S/DMS ACC POWER CARD

Lot of Ten Wirewerks PC-2E-LCCSCC-006D1 Multimode Duplex LC PC/SC PC 6

Carrier Access 48 Volt Battery Backup Unit P/N: 730-0114

ADC SPX-H2LXRB1 SONEPLEX HDSL2 REM MOD (SNP5M30EAA)

Paradyne 6512-A2-200 Superline Integrated Access SRVC

NEC NSA-94630 COL-NB KTU REV 5

FONS (ADC) OCMF19A4169A9FV 1x16 Splitter MX20073280-06

NOR-NTBB02GA-93-NORSTAR 2 PORT FIBER CARD

DEC DELNI-AA 8 PORT NETWORK HUB 7035-01-277-6677

GIC-11 Riverstone Transceiver Module HECI: IPI43S0CAA PACK OF 10

PNY TECH 69000160-BF01-CSC SIMM CARD LOT OF QTY.7

PNY TECH 69000160-DF00-CSC SIMM CARD LOT OF QTY. 7

NOR NTN18AB S-N (HECI:EMPQAEK1AC) DMS-10 LAN SHLF CONTROLLER CARD

SCIENTIFIC ATLANTA VIDEO CIPHER RS RECEIVER MODEL 9660

SCIENTIFIC ATLANTA VIDEO CIPHER RS PROFESSIONAL RECEIVER MODEL 9660 P/N:541943

CISCO 800-08941-07 (HECI:IPUCAL7BAB) UBR10000 CLK MOD W/T1 MOD CARD

SUPERIOR RTC36A CABINET 36 PORT RACK MOUNT

AUGAT BROADBAND RF AMPLIFIER MODEL 94T3

Motorola Next Level SMPS48B (HECI: BAP2H56AAB)

Motorola Next Level SMAD2P (HECI: BA3CSR0GAB)

FUJITSU FC9616PW61 (HECI:SNPQADE5AD) FLM-600 PWR UN CARD

SIEMENS 817560-526-008 (HECI:EGDTS001AA) DCO DTF T1 INTERFACE BOARD

TRILITHIC SEARCH LITE LEAKAGE DETECTOR

Wesl A90-311080 DSI Connector T1LIC961AA

Wesl B90-31MA22 DS1 Mounting T1ML8531RA T1 FAC LPBK

Xavi x7722R+ A77012204531 ADSL Modem Router w/ CD

AMERICA MEGATRENDS IUESER418 2 CHAN PERC3 PCI/SCSI RAID CONTROLLER 428 REV.D1

CISCO SYSTEMS 800-02427-03 ROUTE PROCR MOD 1 CNL1HMSDAA

DX ANTENNA DIR-767 P/N:412788-002 DIGITAL SALITE RECEIVER

Olson Agile TV Modulator P/N: LCM-500

Nor Meridian CP Call Processor Card NT9D19HA

NOR NTNP44AA (HECI:SAPQAEFAAA) S/DMS ACC LINE CD 1 CARD

ALCA 822-0251-002 (HECI:SNPWFT07AA) 1631-SX SMC PWR SUP CONVR

Motorola Professional Salite Receiver DSR-4400X

Emacs 180 Watt Power Supply (Auto-Switching) P/N: MPW-6180F

ETC-1086-C IIS-SYS3 REC/ALM PROCR (VSC1LN0DAA)

ETC-1084-C IIS-SYS3 REC/ALM PROCR (VSP1MP0DAA)

NEC RSG-N (1) Unit Ring Signal Generator

Cisco PIX 501 Firewall- Security appliance Heci: CNS6RVPAAA

C-COR Electronics DV-6016-MX2 CLOCK MOD (VLPIAF05AB)

ADC SPX-H2LXCC1 SONAPLEX HDSL2 CO MODULE (SNP5430EAA)

ALCA 628361-000-001 D448 DPX DA-PATH EXTN D4D1CC03A

FUJITSU-FC9600PWC1-104-FACTR CMS ALARM UN- LFPQAEDCAA

Fujitsu FC9600QPR2-I02 FACTR QPOTS RT CHAN UN LFIUFDR2A

ADC 090713-102 FWD PATH RCVR

LUCENT 3394-001 REV.E INTER CONNECT CABLE

NOR NT2T72AA (HECI:EMPQN7V) DMS-10 PERIPH PROCESSOR

SMC SMC1660T ETHER16 10BASET NE2000 ISA PNP

SUN NETRA X1 P/N: 380-0461-01

ADC 1029941 REV PATH XMTR IX40RPTXA1
 
ALLIED ESYN INTERNATIONAL CENTRECOM 210TS P/N: AT-210TS-07D TRANSCEIVER

NOR NT3T12BA S-C DMS-10 MAG TP CONTROL CARD

NOR NETWORKS NT8E31CA (HECI: SNTXMG13AA) FDN2400 STS-48 TRMTR

Adit 600 CMG Router Card P/N: CMG-01

ADC BNC-11B Connectors 100 Piece Kit

NOR NTBB41FB-93 NOR NORSTAR M0X16 FIBER STATION

ECOM SOLUTIONS 090-45230-01-REV-E DCD523 DDMYABDJAA

FUJITSU FC9608MD33-I02 SNPQA9D5AB LM-2400 MID SPD DS3

CISCO 50125060100-REV-C SDS-1000 SWITCH INTERFACE EDPQSAH1AA

NOR NETWORKS NTFP09AA-S04 PASSPORT V.11 FOT PNL

ANTEC 911224-01-00 CHASSIS

FUJITSU 21-372-050 24 AWG, 28PR,64PM AMP STU

LUCENT TN1845 S-5 5ESS PACKET HANDLER E5PQATKAAD

LUCENT TN2523 S-1 AUTOPLEX CDNIII CP MRPQAE3AAA

CO SYSTEMS CCA011G0 828F MX FIBOP RCVR CD M3RGS423AA

New Linksys Cisco AC1600 Dual Band Smart Wifi Wireless Router EA6400 USB 3.0

HP/COMPAQ 28696-60001 SCSI Controller Adapter Module

FUJITSU 21-375-050 DS1 OUTPUT CBL

FUJITSU 21-371-050 CABLE DS1 TX/RX (SM SHELF, 64-PIN)

CADCO 370T AGILE DEMODULATOR

labs Titan 5500 81.5506A-REV-Q HECI: T3PQAR9BAA

labs 81.5502C-REV-D Disk/Tape 1.2G T3PQAPBBAA

labs 815501A-REV-E Processor Module HECI:T3PQAM1BAA

labs 81.5507A-REV-G CTR STG Module HECI: T3PQANXBAA

Scientific Atlantic D9223 PowerVu Comm Digital Salite Rec

Videotek ADS-24F/DC Dual Channel Audio Distribution Amp

Premisys 8904 10W 20Hz Ringing Generator (DEPQAAT3AA)

Premier Technologies ADL 3004 Music On Hold Recorder

FUJITSU FC9600TCE1-FACTR TMG CONT UN ENH- LFPQADKCAA

FUJITSU FC9612HCM1-I04-FLM-150 HI SPD INTFC- SNCU7R01AD

CISCO NM-1E2W NET MOD ETHRNT/WAN (CNI7AA0AAA)

CISCO CESSE-1150-19-K9 Building Broadband Manager

HEWLETT PACKARD 0950-3259 1200W POWER SUPPLY K-CLASS

ADTRAN 1200375L1 TA 850 CHASIS ONLY SIM2HG0DRA

WATCHMAN E112025 MULTIGAS MONITOR

NOR NT2X10AA (HECI: ENTCN503XX) DMS-100 LINE TEST ANLG CARD

SIEMENS 817504-536-006 (HECI:EGPQTHT1AA) DCO LN GRP HWY SW BOARD
 
NOR NETWORKS NTN452AA (HECI:SNPQCE92AC) EXP GX 1-28 DS1 I/O CP

Trilithic Texscan Tunable Bandpass Filter P/N: 5VF110/220-3-75-XX

Alca Omni PCX SLI 16-1 Analog Interface Card 3EH73052AB JB-03 3EH73052ABJB

Lot of 3 Electrorack Enclosure Server ecom Cabinet 12U x 24W x 28D 126680C

Alca 3EM12295AB 16SL STS-1 SW CD HECI: WMEC903AAA

CISCO 800-03881-02 AS5300 QUAD T1/PRI CN2I24JAAA

OPVISTA OSCT-1510-0-AB METRO VISTA 2000 SWITCH CARD

SIEMENS 822731-546-003 DCO TURBO CALL PROCR EGCULU0CAA

CISCO 800-05548-07 (HECI: BA5A84UFAA) ESR-1GE GIGABIT ETHERNET MODULE

Fujitsu Flashwave 4300 FC9520VF11 HECI: SNP8150CAA

NOR NT9X44AD (HECI: ENPQAZV1AA) DMS-100 SLM-3

Harmonic Lightwaves YAGlink Transmitter P/N: HLT6720

COGNITRONICS POWER SUPPLY P/N: 44347100 (HECI: VSPUN5BBAA)

Redback 695-0104 REV 01 SMS-2000 DC PWR SU (VAPEDDECAA)

AUDICHRON-H8016-G06-IIS-2E LOC VOC CD-ETC-1106-A

BAYTECH DS72 NETWORK EXPANSION MODULE (M332A018C)

NOR NETWORKS NT3T98AA PROCESSOR MODULE Heci: EMCPU20BAA

Covaro Networks Etherjack CC-410

Premisys 8920 DSS/800 Interface Card (DEPQAAU3AA)

PREMISYS 8215 4 PORT HSU CARD (Heci# DEUP380AAA)

FUJITSU-FC9600MDN2-I03-MULDEM UNIT- LFI2EJ4BAB

SONUS 850-00017 REV 2 GSX9000 MGMT TMG ADPTR NGI14Y0GAA

LUCENT UN580B SCSI HOST ADAPTER CONT Heci/Clie: SPPQABT

SONUS 850-00019 REV 1 GSX9000 FAN TRAY FRU (NGPQAA2GAA)

LARSCOM A87-095A-170B NETWORK INTERFACE MOD-SPLIT-T-002

NOR NTMX79AB DMS-100 DS60 EXTENDER Heci: ENPQAWY

CISCO 800-02986-03 PCKT 4-PT T1 NET TRCVR CN3I6V0AAA

TERAYON CHERRY PICKER VIDEO RE-MULTIPLEXER P/N: CP-7000

Juniper MX960 P/N: PWR-MX960-DC-S-E (HECI: COUPAEDEAA)

FUJITSU MODEL: CKT BRK PNL P/N: HA15B-0001-B299/02

R38-GBCMM-04 Riverstone Expansion Module

NEC NSA-93822 SLI-N KTU REV 6M

Nor NT4T04AE DMS-10 DS30A INTFC CARD (EMDCN4A1XX)

Trango Broadband M900S-SU REV-E 900 MHz Wireless Pltfrm

New Bridge 90-3598-33/B DCS-1310/NSX/R3.1 (DSC)

Newbridge 90-2352-01-00-G 4 Port Ethernet

FUJITSU-FC9600PWN2-I02-NBS POWER UNIT-LFPUFAD2AA

FUJITSU-FC9600MDN2-I04-FACTR MULDEM UNIT- LFI2EJVBAA

CRNT-87-31-00013-TRANSCEIVER 14 PT DS1-SNTUAAAAAA

PREMISYS 891630-REV-B2 IMACS/600 Heci: DEMAAP01RC

SEIMENS 822736-526A-001E Dco Feat Procr Iii EGPQA6M1AB

ALCA-LUCENT UN597 PERIPHERAL CONTROLLER SPPQABU

SEIMENS 817648-556A-001B DCO REM TERM CONT EGPQ2A11AD

NOR NETWORKS 50181060100-REV-A SDS-1000 VME POWER MODULE EDPQSAD1AA

CISCO 50182060100-REV-A SDS-1000 M/E POWER MODULE EDPQSAC1AA

MARCONI PWSP0173-0200 POWER SUPPLY FOR ASX200BX/AC

APC SMX48RMBP2U 48V EXT BATT PK RM TWR SMARTUPS X SERIES

NOR NETWORKS NTN510AA S-07 SACPAK0AAA AMPLR PWR SUP

NOR NETWORKS NTN510AA S-11 SACPAKHAAA S/DMS ACC SHLF PROCR