IC670CHS002Z

1．PLC的類型
   PLC按結(jié)構(gòu)分為整體型和模塊型兩類，按應(yīng)用環(huán)境分為現(xiàn)場(chǎng)安裝和控制室安裝兩類；按CPU字長(zhǎng)分為1位、4位、8位、16位、32位、64位等。從應(yīng)用角度出發(fā)，通常可按控制功能或輸入輸出點(diǎn)數(shù)選型。整體型PLC的I/O點(diǎn)數(shù)固定，因此用戶選擇的余地較小，用于小型控制系統(tǒng)；模塊型PLC提供多種I/O卡件或插卡，因此用戶可較合理地選擇和配置控制系統(tǒng)的I/O點(diǎn)數(shù)，功能擴(kuò)展方便靈活，一般用于大中型控制系統(tǒng)。


2．輸入輸出模塊的選擇


輸入輸出模塊的選擇應(yīng)考慮與應(yīng)用要求的統(tǒng)一。例如對(duì)輸入模塊，應(yīng)考慮信號(hào)電平、信號(hào)傳輸距離、信號(hào)隔離、信號(hào)供電方式等應(yīng)用要求。對(duì)輸出模塊，應(yīng)考慮選用的輸出模塊類型，通常繼電器輸出模塊具有價(jià)格低、使用電壓范圍廣、壽命短、響應(yīng)時(shí)間較長(zhǎng)等特點(diǎn)；可控硅輸出模塊適用于開關(guān)頻繁，電感性低功率因數(shù)負(fù)荷場(chǎng)合，但價(jià)格較貴，過(guò)載能力較差。輸出模塊還有直流輸出、交流輸出和模擬量輸出等，與應(yīng)用要求應(yīng)一致。可根據(jù)應(yīng)用要求，合理選用智能型輸入輸出模塊，以便提高控制水平和降低應(yīng)用成本。考慮是否需要擴(kuò)展機(jī)架或遠(yuǎn)程I/O機(jī)架等。


3.電源的選擇


PLC的供電電源，除了引進(jìn)設(shè)備時(shí)同時(shí)引進(jìn)PLC應(yīng)根據(jù)產(chǎn)品說(shuō)明書要求設(shè)計(jì)和選用外，一般PLC的供電電源應(yīng)設(shè)計(jì)選用220VAC電源，與國(guó)內(nèi)電網(wǎng)電壓一致。重要的應(yīng)用場(chǎng)合，應(yīng)采用不間斷電源或穩(wěn)壓電源供電。如果PLC本身帶有可使用電源時(shí)，應(yīng)核對(duì)提供的電流是否滿足應(yīng)用要求，否則應(yīng)設(shè)計(jì)外接供電電源。為防止外部高壓電源因誤操作而引入PLC，對(duì)輸入和輸出信號(hào)的隔離是必要的，有時(shí)也可采用簡(jiǎn)單的二極管或熔絲管隔離。


4.存儲(chǔ)器的選擇


由于計(jì)算機(jī)集成芯片技術(shù)的發(fā)展，存儲(chǔ)器的價(jià)格已下降，因此，為保證應(yīng)用項(xiàng)目的正常投運(yùn)，一般要求PLC的存儲(chǔ)器容量，按256個(gè)I/O點(diǎn)至少選8K存儲(chǔ)器選擇。需要復(fù)雜控制功能時(shí)，應(yīng)選擇容量更大，檔次更高的存儲(chǔ)器。
BIT3 COMPUTER CORP /?SBS 465-201 SBUS PMC CARD - 84202322 (USED)




BIT3 COMPUTER CORP/?SBS 466-202 VME SUN?SBUS TO A32/D32 VMEBUS W/DMA CONTROLLER




BIT3 COMPUTER CORP/SBS 617-202 VME SUN SBUS TO A32/D32 VMEBUS W/ DMA CONTROLLER




BIT3 COMPUTER CORP/?SBS 412-101 VME SBUS?TO A32/D32 VMEBUS WITH DMA CONTROLLER




BIT3 COMPUTER CORP/?SBS 400-206 8MB DYNAMIC DUAL PORT RAM CARD - 82503180 (USED)


BIT3 COMPUTER CORP/?SBS 418-101 VME64 BUS REPEATER EXTENDER?MODULE - 84702215




BIT3 COMPUTER CORP/?SBS 403-202 IBM PC/AT TO A24/D16 VMEBUS?ADAPTER - 82002045




BIT3 COMPUTER CORP/?SBS 413-101 VME SBUS?TO A32/D32 VMEBUS WITH DMA CONTROLLER




BIT3 COMPUTER CORP/?SBS 400-204 2MB DYNAMIC RAM CARD - 82503160 (USED)


BUSTRONIC 101VMEM106 MONOLITHIC 6-SLOT VMEBUS BACKPLANE (USED)




BUSTRONIC 101PNGJ306 6-SLOT VME BACKPLANE (USED)


BYTE RUNNER PCI-800 8-PORT 9-PIN SERIAL 16550 UARTS PCI CARD WITHOUT CABLES-USED


BROOKTROUT TECHNOLOGY NS301+CP256DM-8P-AB NETWORK INTERFACE?& PACKET PROCESSING




BROOKTROUT TECHNOLOGY TR114+P2L 2 CHANNEL ANALOG FAX/VOICE PCI CARD(802-926-XXX)




BROOKTROUT TECHNOLOGY TRNIC-I24T 24 CHANNEL ANALOG FAX/VOICE?ISA CARD 802-922-XX




BROOKTROUT TECHNOLOGY TR114+14L (802-907-06B) 2 PORT 4 CHANNEL ANALOG FAX/VOICE


CASTELLE 81-0043-002 JETPRESS M10 10 BASE-T HP LJ5 JETDIRECT INTERNAL MODULE




CAMINTONN DHV11-16?16 LINES Q-BUS MUX -DEC DHV11 EQUIVALENT (USED)




CAMINTONN CMX-4200-48 48MB MEMORY (DEC MS650-XX EQUIVALENT)?MODULE (USED)


CAMINTONN CMV-504 2MB DUAL Q-BUS MODULE?(USED)




CAMINTONN CM-DRV11-WA 18/22-BIT GENERAL PURPOSE DMA INTERFACE (USED)


CLEARPOINT DCMEV40-00050 64MB MS670-CA EQUIVALENT MEMORY MODULE (USED)


CLEARPOINT DCMEV40-00095 32MB MS670-BA EQUIVALENT MEMORY MODULE (USED)




CMAC 8136-LG498-33-2 Q-BUS QUAD TEST MODULE (USED)




CMC 320080-03 6U VME MIL SPEC MODULE WITH DAUGHTER CARD 100156-32 (USED)




Cisco CVPN 3000 Concentrator




CISCO CVPN3002-8E (SET OF 2) VPN 3002 HARDWARE CLIENT WITH AC ADAPTER (USED)




CISCO DS-X9016 9000?SERIES 16-PORT 1/2?GBPS FC MODULE (USED)




Cisco PIX-515 Firewall




Cisco NM-8AM 8-Port?Analog Modem




CISCO DS-CAC-2500W MDS 9500 2500W POWER?SUPPLY (USED)


CISCO PIX-501 FIREWALL PIX SERIES P/N 47-10539-02 W/ AC ADAPTER P/N 341-0008-01




CMT GIGE-PMC-OPT SINGLE FIBER CHANNEL PMC MODULE (USED)


COGNEX CORP VM-5 DUAL Q-BUS MODULE (USED)




COLORGRAPHIC COMMUNICATIONS 602168 PRO LIGHTNING V+ 2 SVGA PORTS PCI MODULE




COLORGRAPHIC COMMUNICATION 602184 EVOLUTION 4 VGA 4 PORT MODULE (USED)




HP/COMPAQ StorageWorks SDLT 320 Tape Drive 257321-001 (USED)




COMPCONTROL CC-98 VMEBUS 1.05GB SCSI SINGLE HARD DRIVE (USED


COMPUTONE 3-01655-E PCI EX INTELLIPORT PCI MODULE (USED)


COMPUTONE 3-01835-A 16 PORTS INTELLIPORT II ISA-CEX MODULE (USED)


COMTROL CORP 5000004 ROCKET 8 PORTS RS422 PCI CARD (USED)




CMD CBI-1012/TM VAXBI-BUS DISK&TAPE DIFFERENTIAL (DAUGHTER PCF-1012-000 BOARD)




CMD CSV-8050/6 DUAL?6-PORT TRIDENT RAID?CONTROLLER MODULE W/FRONT CONTROL PANEL




CMD CQD-260/TMS QBUS?QUAD SCSI DISK AND?TAPE CONTROLLER MODULE (USED)




CMD CQD-243/TM QBUS?SCSI DISK AND TAPE CONTROLLER MODULE (USED)




CMD CRD-5440 4 CHANNEL VIPER II ULTRA SCSI RAID CONTROLLER?(USED)




CMD CDU-710-T UNIBUS?SCSI TAPE CONTROLLER MODULE (USED)




CYCLONE MICROSYSTEMS PMC-0359 (270-0359) ATM FIBER CARD (USED)




CYCLONE MICROSYSTEMS PMC55- 270-0355-02 ATM-OC3 USER NETWORK INTERFACE (USED)


CYCLONE MICROSYSTEMS PCI-983 FIBER PCI 64BIT SINGLE MEMORY SLOT MODULE- 270-0983


CYCLONE MICROSYSTEM CVME-965 MEZZANINE CARD W/OPTION VME MODULE 965-1009-408-21


DATABILITY LC-32-RS423 VCP1000 32 RJ45 PORTS MODULE - 500210103 D423/500220103
、
DATABILITY VCP/E-NIC VCP1000 ETHERNET INTERFACE MODULE 10BASET AND AUI PORTS


DATACUBE QVG-123 IMAGING QBUS PROCESSOR MODULE WITH AF-123 PIGGY-BACK MODULE


DATARAM 61994 [MSP01-BC 128MB = 4 X 32MB] MEMORY KIT (USED)


CSPI 2640 MULTICOMPUTER WITH DUAL RISC PROCESSORS, DUAL PORT?MYRINET NETWORK




CSPI 2641 MULTICOMPUTER WITH DUAL RISC PROCESSORS, DUAL PORT?MYRINET NETWORK




CSPI SC3XL/32MB SUPERCARD VMEBUS INTEL i860XP 50mhz ARRAY PROCESSOR BOARD




CSPI SC-2XL/16MB SUPERCARD VMEBUS INTEL?i860 40mhz ARRAY PROCESSOR BOARD


DATEL DVME-628 8 CHANNEL 12-BIT D/A VOLTAGE CONVERTER VMEBUS MODULE (USED)


DATEL DVME-601 16S/8D CHANNEL 12-BIT D/A DATA ACQUISITION W/CO-PROCESSOR VMEBUS


DATUM BC635VME 6U TIME/FREQUENCY PROCESSOR WITH TIME ON DEMAND, EVENT LOGGING


DATUM BC330VME 3U SERIAL TIME SIGNAL DECODER READER / PROCESSORS VMEBUS MODULE


DEVELOPMENT COCEPTS INCORPORATED (DCI) 791004-01 RS/5250 CONTROLLER CARD (USED)




DSRVW-ZA DEC SERVER?700 8 RS232 PORTS 2MB WITHOUT POWER SUPPLY




DTC03-AA DEC TALK III ENCLOSURE W/ POWER?SUPPLY (USED)




DEC 57-19400-04 / DCJ11-AC CPU FOR DEC PDP-11 (USED)




M8061 RLV12 Q-BUS RL01 / RLO2 DISK 22-BIT CONTROLLER




54-24327-01 ALPHASTATION 500/266 MOTHERBOARD (USED)


M7555 RQDX3 QBUS RD/RX CONTROLLER


M7740 KLESI-QA Q-BUS TO LESI BUS CONTROLLER


M7740-PA KLESI-SA S-HANDLE Q-BUS TO LESI BUS CONTROLLER


M7946 RXV11 Q-BUS RX01 CONTROLLER DUAL MODULE



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 本公司主要優(yōu)勢(shì)產(chǎn)品： 【..美國(guó)..英維思 Invensys FOXBORO I\\A系統(tǒng), Triconex ESD系統(tǒng)】
【..美國(guó).. .AB ..1756系列,1785系列,1746系列,1747系列,1771系列】 【..瑞士.. .ABB.. 機(jī)器人 DSQC系列,ABB Advant OCS,ABB Procontic PLC CPU 】 
【..法國(guó)....施耐德.. 140莫迪康昆騰系列處理器,內(nèi)存卡,電源模塊等。】 【..德國(guó)...西門子..Siemens MOORE,S5,S7,6DD等】 
【..美國(guó)...通用電氣..GE..IC693/IC697系列】 【..美國(guó) ...Westinghouse（西屋）： OVATION系統(tǒng)、WDPF系統(tǒng)、WEStation系 統(tǒng)備件。】
【 ..德國(guó)...Bosch Rexroth（博世力士樂(lè)）：Indramat，I/O模塊,PLC控制器,驅(qū) 動(dòng)模塊等。】 【..美國(guó)... Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、 MVME177等系列。】






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