3HAC025834-001
3HAC025834-001
3HAC025834-001
3HAC025834-001
從可靠性來說，IPC要比單片機要好得多，但其價格昂貴，
不計其整機價格，單就要滿足I/O點數(shù)據(jù)的板卡量（32通道，約10塊）費用就不少，其價格要遠遠高于采用PLC控制的價格。
更為重要的是工控機更新?lián)Q代較快，不但硬件如此，而且最根本的操作系統(tǒng)也不斷地更新?lián)Q代，換句話說，如果設(shè)備控制系統(tǒng)出現(xiàn)故障，更換硬件，可能意味著更新操作系統(tǒng)，進而導(dǎo)致整個系統(tǒng)的應(yīng)用軟件（包括界面）都要重新設(shè)計（或開發(fā)），這對太多數(shù)用戶來說是不能接受的。
所以，本人認為此方案也不適用。
3 PLC控制
· 可靠性
自第一臺PLC誕生就是應(yīng)用于工業(yè)現(xiàn)場控制，不可否認，PLC的
可靠性得到了工控業(yè)界的認可。據(jù)最近行業(yè)統(tǒng)計顯示，目前采用PLC控制的設(shè)備份額達90％。
· 成本低
就此設(shè)備的控制來說，采用PLC來進行的設(shè)備開發(fā)和控制費用
都要遠遠低于采用單片機或IPC的費用，其系統(tǒng)可大可小，小的幾點，大的數(shù)千點，甚至上萬點，很好解決工業(yè)控制問題，適用于很多場合。
· 開發(fā)周期短
采用PLC進行設(shè)備控制，工程師無須花太多的精力在硬件的處理上，采用積木式結(jié)構(gòu)很快可以形成系統(tǒng)電路，大部分精力集中在工藝的了解處理和程序的編寫上，有利于設(shè)備的快速開發(fā)，程序的編輯、修改和調(diào)試也都可隨時進行，縮短了開發(fā)時間。
REZNOR HMA400AL42VTSE2?N 400,00 BTU DUCT FURNACE TUBES全國低價,歡迎來電!
CARRIER 50HQ-900521 LOOP CONTROLLER W/ B OPTION 146286全國低價,歡迎來電!
SQUARE D DT362 FUSIBLE SAFETY SWITCH 161221全國低價,歡迎來電!
DAYTON 36" FAN CIRCULATOR 1 HP 115/230V 1140:RPM 91777全國低價,歡迎來電!
MITSUBISHI CMB-106NU-F BC CONTROLLER 208/230V 145999全國低價,歡迎來電!
DAY AND NIGHT C9MPV050F12D 50,000 GAS FURNACE 92%全國低價,歡迎來電!
YORK HBBE-F048S 4 TON SPLIT SYSTEM AIR CONDITIONER R-22全國低價,歡迎來電!
MITSUBISHI CMB-106NU-F BC CONTROLLER 208/230 VOLT全國低價,歡迎來電!
WINSMITH 935MDSN METRIC SPEED REDUCER 5:1 345:RPM 45999全國低價,歡迎來電!
WINSMITH 935MDSN50DLR90-?B1435 SPEED REDUCER 50:1 61542全國低價,歡迎來電!
COPELAND ZR16M3-TW7-568 13 TON SCROLL AC/HP COMPRESSOR全國低價,歡迎來電!
WINSMITH 943MWNS076X0GC METRIC SPEED REDUCER 60:1全國低價,歡迎來電!
JACUZZI K374969 60" OYSTER FIBERGLASS BATH 160252全國低價,歡迎來電!
WEG 02518EP3E284TC 25 HP MOTOR 208-230/460 VOLT 159310全國低價,歡迎來電!
MI-T-M GC-2403-0MHB 5.5HP PRESSURE WASHER 2400PSI 81640全國低價,歡迎來電!
RHEEM RPNL-042JAZ 3.5TON 13 SEER SPLIT SYSTEM HEAT PUMP全國低價,歡迎來電!
TRANE 2TEE3F65A1000A 5 TON MULTIPOSITION FAN COIL 55459全國低價,歡迎來電!
DAYTON 36" INDUSTRIAL HAZARDOUS LOCATION AIR CIRCULATOR全國低價,歡迎來電!
RHEEM RPNL-042JAZ 3.5TON 13SEER SPLIT SYSTEM HEAT PUMP全國低價,歡迎來電!
CHAMPION COOLER 4001DD-N43/48D EVAPORATIVE COOLER 53789全國低價,歡迎來電!
CARRIER 50HQ-900531 LOOP CONTROLLER W/ C OPTION 146287全國低價,歡迎來電!
DAYTON 36' CABINET EXHAUST FAN/RPM 611 156894全國低價,歡迎來電!
THERMO SCI BARNSTEAD LABLINE 95097 PREMIUM CONTROLLER全國低價,歡迎來電!
AVAYA HD-700009517-EX?PO SYSTIMAX OPTICAL CABLE 156301全國低價,歡迎來電!
NORDYNE FG6TL060C-VAB 60,000 BTU 90% AFUE GAS FURNACE全國低價,歡迎來電!
RHEEM RPNL-036DAZ 3 TON SPLIT SYSTEM HEAT PUMP 154509全國低價,歡迎來電!
TRANE 2TEE3C40A1000A 3.5 TON MULTIPOSITION FAN COIL R22全國低價,歡迎來電!
JACUZZI R810959 72"x42" WHITE FIBERGLASS HOT TUB 160065全國低價,歡迎來電!
TRANE CRHH062J0A000R0?K0C0 5T AC/HP HERMATIC COMPRESSOR全國低價,歡迎來電!
WINSMITH 943MDNS40DLR100?B1442 SPEED REDUCER 40:1 62565全國低價,歡迎來電!
CARRIER 50HQ-900451 LOOP CONTROLLER W/A-C OPTION 146284全國低價,歡迎來電!
THERMO SCIENCE IEC 4-PLACE SWINGING BUCKET ROTOR 146178全國低價,歡迎來電!
WINSMITH 1LD-99 10:1 METRIC SPEED REDUCER 172 RPM 66329全國低價,歡迎來電!
SQUARE D QGL32150 150A/MOLDED CASE CIRCUIT BREAKER全國低價,歡迎來電!
DAYTON CHEMICAL RESISTANT SUMP PUMP 166415全國低價,歡迎來電!
DAYTON AHP60D3XH21 5-TON FAN COIL - NO TXV 165175全國低價,歡迎來電!
JACUZZI B690969 41" X 72" OYSTER WHIRLPOOL BATH 160677全國低價,歡迎來電!
DAYTON EXHAUST VENTILATOR,18 3/4 INCH 31483全國低價,歡迎來電!
ALLIED AT3714FXLSC-10 10/100 12 PORT FIBER SWITCH全國低價,歡迎來電!
BELDEN CMR2PR18 SHIELDED CIRCUIT CABLE 154393全國低價,歡迎來電!
GE ALCP2003 PROGRAM TEMPERATURE LOOP CONTROL PANEL全國低價,歡迎來電!
US ELECTRIC 6231B 50HP ELECTRIC MOTOR 69809全國低價,歡迎來電!
TRANE TDD1D120A9H51B 120,000 DOWN/HORIZ FURNACE 80%全國低價,歡迎來電!
SPEEDAIRE SA3600V BLOWER/VACCUM PUMP 162334全國低價,歡迎來電!
WATTS 0389309 2-1/2" DOUBLE CHECK VALVE 160813全國低價,歡迎來電!
JACUZZI BF75-959 72" WHITE FIBERGLASS WHIRLPOOL BATH全國低價,歡迎來電!
MUELLER 1-1/2791S-AHCI 1-1/2" THREADED DUPLEX STRAINER全國低價,歡迎來電!
RACKNEST (4u) FOR MT180C RACKMOUNT MT1800A 153040全國低價,歡迎來電!
EMERSON U25E2D 25 HP 3-PHASE 208-230-460V MOTOR 42908全國低價,歡迎來電!
BLACK BOX LR0061A# DSL LAN EXTENDER 156360全國低價,歡迎來電!
BLACK BOX IC455A ACTIVE CCTV RECEIVER HUB 148377全國低價,歡迎來電!
WATTS 0437800 REDUCED PRESSURE ZONE ASSEMBLY 160812全國低價,歡迎來電!
CISCO EB-CISCO1005-CH SMALL DESKTOP ROUTER 155134全國低價,歡迎來電!
JACUZZI T705958 72"x36"ALMOND FIBERGLASS BATHTUB 160074全國低價,歡迎來電!
DAYTON 5VD79A 150,000 INFARED TUBE HEATER 152403全國低價,歡迎來電!
DAYTON CONE EXHAUST FAN 48" 152579全國低價,歡迎來電!
CORNING TB110FNRUL 540 FEET FIBER OPTIC CABLE 154396全國低價,歡迎來電!
ETHERNET CISCO2505#CH(UT?P HUB PORTS)DUAL SERIAL RT全國低價,歡迎來電!
KOHLER K-1164-47 72x42 ALMOND WHIRLPOOL BATH 160573全國低價,歡迎來電!
TRANE CSHB175KO*OM 17.6T REFRIGERATION COMPRESSOR 10638全國低價,歡迎來電!
DAYTON SUPPLY VENTILATOR/DIRE?CT DRIVE DOWNBLAST 160086全國低價,歡迎來電!
U-LINE ULN-BI98WH-00 ICEMAKER, 23 LBS/DAY, WHITE 49232全國低價,歡迎來電!
DAYTON 1-HP HI VOLUME & VELOCITY CIRCULATOR FAN 60469全國低價,歡迎來電!
COZY 90N75A 75,000 BTU FLOOR FURNACE 159688全國低價,歡迎來電!
MULTI SERVSWITCH KV155A-SFI 153220全國低價,歡迎來電!
TRANE TDX1B040A9H21B 40,000 DOWN/HORIZ GAS FURNACE 91%全國低價,歡迎來電!
TRANE TDX1B040A9H21B 40,000 DOWN/HORIZ 91% GAS FURNACE全國低價,歡迎來電!
DAYTON 36 INCH TUBEAXIAL FAN 162549全國低價,歡迎來電!
A HIGH SPEED T1 FORMAT PROCESSOR MT202A-449-R2 153235全國低價,歡迎來電!
BLACK BOX EB-LR3001A-CT21 REMOTE BRIDGE/ROUTER 155142全國低價,歡迎來電!
RHEEM EGSP30-B 30 GALLON 240 VOLT WATER HEATER 160639全國低價,歡迎來電!
BLACK BOX TD115VE#R3 SERIAL TEST COMPROBE FOR WINDOWS全國低價,歡迎來電!
AO SMITH BN37 7.5 HP MOTOR 230/460 VOLT 1765 RPM 81637全國低價,歡迎來電!
ALLEGRO 9516 115/230 VOLT HIGH OUTPUT BLOWER 158058全國低價,歡迎來電!
WINSMITH 935** 60:1 METRIC SPEED REDUCER 29:RPM 66342全國低價,歡迎來電!
TRANE 2TEE3F49A1000AA 3.5TON MULTIPOSITION FAN COIL R22全國低價,歡迎來電!
TRANE 2TEE3F49A1000AA 3.5T MULTIPOSITION FAN COIL R22全國低價,歡迎來電!
TRANE 2TEE3F49A1000AA 3.5t MULTIPOSITION FAN COIL R22全國低價,歡迎來電!
TRANE 2TEE3F49A1000AA 3.5Ton MULTIPOSITION FAN COIL R2全國低價,歡迎來電!
TRANE 2TEE3F49A1000AA 3.5ton MULTIPOSITION FAN COIL R2全國低價,歡迎來電!
BLACK BOX SW998A-R2 16 TO 1 SERVMANAGER 159710全國低價,歡迎來電!
JACUZZI B540969 42" x 72" OYSTER WHIRLPOOL BATH 160680全國低價,歡迎來電!
DAYTON 4ZA51A 230 VOLT, 3 HP CENTRIFUGAL PUMP 165130全國低價,歡迎來電!
SMARTVUE S2C4/EU 4MM WIRELESS CAMERA 162957全國低價,歡迎來電!
BLACK BOX LR7001A-25 LASAT SAFEPIPE 25 155280全國低價,歡迎來電!
GOODMAN AEPF1830-1 1.5 - 2.5TON MULTI-POSITION FAN COIL全國低價,歡迎來電!
ADC FT651 EPOXY TERM TOOL KIT 162745全國低價,歡迎來電!
TRANE 2TEE3F40A1000AA 3.5TON MULTIPOSITION FAN COIL R22全國低價,歡迎來電!
DAYTON 48" GRAVITY VENTILATOR, BASE 54 1/2" SQ. 31713全國低價,歡迎來電!
MAAX/AKER AC004272WH ACRYLIC OVAL WHIRLPOOL TUB 156503全國低價,歡迎來電!
DAYTON AF08 15 HP ELECTRIC MOTOR RPM:1775 81407全國低價,歡迎來電!
WATTS 0111730 DOUBLE CHECK VALVE ASSEMBLY 145806全國低價,歡迎來電!
POWELL & POWELL SUPP 2346-3 CHECK VALVE 3 INCH 160768全國低價,歡迎來電!
DAYTON 30" TUBEAXIAL FAN-BELT/LESS DRIVE PACKAGE 146535全國低價,歡迎來電!
DAYTON 30 INCH TUBEAXIAL FAN-BELT/LESS DRIVE PACKAGE全國低價,歡迎來電!
DAYTON 30INCH TUBEAXIAL FAN-BELT/LESS DRIVE PACKAGE全國低價,歡迎來電!
MINUTEMAN FR20115 SINGLE SPEED FLOOR MACHINE 30493全國低價,歡迎來電!
RUUD UPNE-036CAZ 3 TON SS HEAT PUMP 13 SEER R-22全國低價,歡迎來電!
MULTI FAN PH6E63 24" AGRICULTURAL EXHAUST FAN 147155全國低價,歡迎來電!
MITSUBISHI PLH-42AK 3.5 TON MINI SS/HP FAN COIL 145997全國低價,歡迎來電!
MAAX/AKER ACRYOV4260BWS-W?HI WHIRLPOOL ACRYLIC OVAL TUB全國低價,歡迎來電!
BELDEN 9553 CABLE 300:VOLT AWG:18 154394全國低價,歡迎來電!
FRIEDRICH MR40Y3 3-1/2T HP SS CONDENSING UNIT 10 SEER全國低價,歡迎來電!
BLACK BOX S2DVM250P SMARTVUE 250G DVM 159714全國低價,歡迎來電!
BLACK BOX TS6000AE SCAN LAN VI 164495全國低價,歡迎來電!
BLACK BOX EXN2036A-1000 FIBER OPTIC CABLE 1000' 156307全國低價,歡迎來電!
BLACK BOX LWU1000-TP-US LASER TWISTED PAIR INPUT 155292全國低價,歡迎來電!
BLACK BOX AIR-BR1410A-A-K?9-N WIRELESS BRIDGE 156291全國低價,歡迎來電!
BLACK BOX KVT133A-R3 8-PORT SERVVIEW ULTRA II 164814全國低價,歡迎來電!
BLACK BOX EB-MDR100AE-R4 INDUSTRIAL MODEM RF115 155145全國低價,歡迎來電!
DAYTON 24" EXHAUST VENT 115/230V 1 PHASE 60HZ 54516全國低價,歡迎來電!
COPELAND ZR144KC-TF7-250 12 TON SCROLL AC/HP COMPRESSOR全國低價,歡迎來電!
NORDYNE KG6RL060C-12A 60,000 DOWNFLOW 92.1% GAS FURNACE全國低價,歡迎來電!
CISCO 280879 ROUTER CONFIGURATION 153727全國低價,歡迎來電!
MAAX/AKER BFS-63 1-PIECE GELCOAT FIBERGLASS SHOWER全國低價,歡迎來電!
WESCO 272754 HIGH-LIFT PALLET TRUCK 164999全國低價,歡迎來電!
DAYTON 36" TUBEAXIAL FAN REPLACEMENT 6 BLADE 80365全國低價,歡迎來電!
JACUZZI N821959 20x60x60 WHITE FIBERGLASS CORNER TUB全國低價,歡迎來電!
MARVEL 6CRF7001 REFRIGERATOR/FR?EEZER 160347全國低價,歡迎來電!
COMDIAL DXAUX DXP AUXILIARY BOARD 149243全國低價,歡迎來電!
NORDYNE PGF1TL092CVB 92,000 DOWNFLOW 90+% GAS FURNACE全國低價,歡迎來電!
BLACK BOX MT902A T1/E1 CSU/DSU 2-CHANNEL PLUS 164459全國低價,歡迎來電!
BLACK BOX LE632A# LOCAL AND REMOTE REPEATER 147190全國低價,歡迎來電!
MICROSOFT TECHNICAL SUPPORT TRAINING 147189全國低價,歡迎來電!
DAYTON 24 1/2" EXHAUST VENTILATOR FAN 157376全國低價,歡迎來電!
WINSMITH 935MDSN5DLR132-?B1435 SPEED REDUCER 5:1 61544全國低價,歡迎來電!
WINSMITH 935MDSN20DLR100?-B5 METRIC SPEED REDUCER 15:1全國低價,歡迎來電!
BLACK BOX LMC100A-SMSC-XL?H-R2 FLEXPOINT CONVERTS 159749全國低價,歡迎來電!
KOHLER K-T6906-4-BV BATH FAUCET 160837全國低價,歡迎來電!
DAYTON EXHAUST VENT 30.5" CONTROL UP 38582全國低價,歡迎來電!
JACUZZI 4480969 60" OYSTER WHIRLPOOL BATH 160807全國低價,歡迎來電!
WINSMITH 943MWN10LR132-R?5 METRIC SPEED REDUCER 10:1全國低價,歡迎來電!
WINSMITH 943MWN50LR90-B1?4 METRIC SPEED REDUCER 50:1全國低價,歡迎來電!
WINSMITH 943MWN30LR100-B?14 METRIC SPEED REDUCER 30:1全國低價,歡迎來電!
GE AZ55H12DAB 1 TON PACKAGED AC/HP UNIT 208-230V 15418全國低價,歡迎來電!
DAYTON 18 1/2" ROOF EXHAUST VENTILATOR 41949全國低價,歡迎來電!
DAYTON 21 1/4" ROOF EXHAUST VENTILATOR 157949全國低價,歡迎來電!
ANDWIN SCIENTIFIC HX2138 PLATFORM ROCKER 146140全國低價,歡迎來電!
COPELAND ZR125KC-TF7-250 10.5T SCROLL AC/HP COMPRESSOR全國低價,歡迎來電!
GOODMAN ARPF18241 1.5-2 TON MULTI-POSITION FAN COIL全國低價,歡迎來電!
3M VOL-H62P1 HORIZONTAL 62.5/125 2 FIBER PLENUM 3280'全國低價,歡迎來電!
RHEEM RGLR-12EARMR 125,000 BTU 2-STAGE 80% GAS FURNACE全國低價,歡迎來電!
BLACK BOX 82120-1000 RG6/U COAX CABLE 1000' REEL 159874全國低價,歡迎來電!
DAYTON 14-3/4" EXHAUST VENT/CENTRIFUGA?L UPLAST 159266全國低價,歡迎來電!
DAYTON 16 1/2" 115-208-230V ROOF EXHAUST VENTILATOR全國低價,歡迎來電!
APC SU2200RMI3U UNINTERRUPTIBLE POWER SUPPLY 155378全國低價,歡迎來電!
BRINKMAN LAB. SYSTEMS 09548332 SENSOR SET F/B721 CV全國低價,歡迎來電!
NEXAIN 530645 50 PAIR PLENUM CABLE 838'全國低價,歡迎來電!
ALLTECH AGILENT GC COL DB-624-75M-MEGA?-3.0UM 125-1374全國低價,歡迎來電!
YORK 2PE04703025 3-6 TON POWER EXHAUST 150784全國低價,歡迎來電!
BLACK BOX LB1301A-SM40 TX (TO) FX CONVERTER 163078全國低價,歡迎來電!
FRIEDRICH EM18M34-A 17,500 BTU WINDOW AIR CONDITIONER全國低價,歡迎來電!
BLACK BOX CDT400A-R4 T4 FOUR CD TOWER 147833全國低價,歡迎來電!
THERMO SCIENTIFIC ORION DURAPROBE CONDUCTIVITY 013150A全國低價,歡迎來電!
BLADEX INC 22080086 SHARPS COLLECTOR 159123全國低價,歡迎來電!
KOHLER 505-96 MENDOTA 5' BATH TUB LEFT OUTLET BISCUIT 全國低價,歡迎來電!
ELKAY LCCR3232 GOURMET DOUBLE BOWL CORNER SINK 159017全國低價,歡迎來電!
CUNO CWS200ME AQUA-PURE WATER SOFTENER 160663全國低價,歡迎來電!
LIGHT CRIMP SC TERMINATION KIT 147765全國低價,歡迎來電!
DAYTON 18 1/2" EXHAUST VENTILATOR 1/4-2 HP 158274全國低價,歡迎來電!
DAYTON 18 1/2"EXHAUST VENTILATOR 1/4 TO 2 HP 158274全國低價,歡迎來電!
DAYTON 18 1/2"EXHAUST VENTILATOR 1/4-2 HP 158274全國低價,歡迎來電!
DAYTON 24" TUBEAXIAL FAN/DIRECT DRIVE 160083全國低價,歡迎來電!
BLACK BOX AC1063A-DA CAT5 MULTI-VIDEO RECIEVER 164539全國低價,歡迎來電!
BLACK BOX KV6104SA# SERVSWITCH DUO 4 PORT 155241全國低價,歡迎來電!
JACUZZI 9230959 42" X 60" WHITE WHIRLPOOL BATH 160803全國低價,歡迎來電!
FIRST COMPANY 09SPX4HP 9000BTU PKG TERMINAL HEAT PUMP全國低價,歡迎來電!
BLACK BOX SW700A-ST-MM-E FALLBACK SWITCH 153130全國低價,歡迎來電!
JOHNSON CONTROLS V5842-15 6" 3-WAY MIXING VALVE 59959全國低價,歡迎來電!
CARLYLE 06DA31336FA0400 5 HP SEMI HERMETIC COMPRESSOR全國低價,歡迎來電!
DAYTON 13-1/4" EXHAUST VENTILATOR 115/208-230V 164953全國低價,歡迎來電!
TRANE 2TEH3F42A1000A 3-1/2TON AC FAN COIL UP/HORIZONTAL全國低價,歡迎來電!
DAYTON 13-1/4" EXHAUST VENTILATOR 115/208-230V 164953全國低價,歡迎來電!
DAYTON EXHAUST VENTILATOR 13-1/4" 115/208-230V 164953全國低價,歡迎來電!
