福建中立恒自動化設(shè)備有限公司

1．輸入/輸出單元

輸入/輸出單元通常也稱I/O單元或I/O模塊，是PLC與工業(yè)生產(chǎn)現(xiàn)場之間的連接部件。

PLC通過輸入接口可以檢測被控對象的各種數(shù)據(jù)，以這些數(shù)據(jù)作為PLC對被控制對象進(jìn)行控制的依據(jù)；同時(shí)PLC又通過輸出接口將處理結(jié)果送給被控制對象，以實(shí)現(xiàn)控制目的。

由于外部輸入設(shè)備和輸出設(shè)備所需的信號電平是多種多樣的，而PLC內(nèi)部CPU的處理的信息只能是標(biāo)準(zhǔn)電平，所以I/O接口要實(shí)現(xiàn)這種轉(zhuǎn)換。

I/O接口一般都具有光電隔離和濾波功能，以提高PLC的抗干擾能力。另外，I/O接口上通常還有狀態(tài)指示，工作狀況直觀，便于維護(hù)。

PLC提供了多種操作電平和驅(qū)動能力的I/O接口，有各種各樣功能的I/O接口供用戶選用。I/O接口的主要類型有：數(shù)字量（開關(guān)量）輸入、數(shù)字量（開關(guān)量）輸出、模擬量輸入、模擬量輸出等。

常用的開關(guān)量輸入接口按其使用的電源不同有三種類型：直流輸入接口、交流輸入接口和交/直流輸入接口。

常用的開關(guān)量輸出接口按輸出開關(guān)器件不同有三種類型：是繼電器輸出、晶體管輸出和雙向晶閘管輸出。

繼電器輸出接口可驅(qū)動交流或直流負(fù)載，但其響應(yīng)時(shí)間長，動作頻率低；而晶體管輸出和雙向晶閘管輸出接口的響應(yīng)速度快，動作頻率高，但前者只能用于驅(qū)動直流負(fù)載，后者只能用于交流負(fù)載。

PLC的I/O接口所能接受的輸入信號個(gè)數(shù)和輸出信號個(gè)數(shù)稱為PLC輸入/輸出（I/O）點(diǎn)數(shù)。I/O點(diǎn)數(shù)是選擇PLC的重要依據(jù)之一。當(dāng)系統(tǒng)的I/O點(diǎn)數(shù)不夠時(shí)，可通過PLC的I/O擴(kuò)展接口對系統(tǒng)進(jìn)行擴(kuò)展。

2．通信接口

PLC配有各種通信接口，這些通信接口一般都帶有通信處理器。

PLC通過這些通信接口可與監(jiān)視器、打印機(jī)、其它PLC、計(jì)算機(jī)等設(shè)備實(shí)現(xiàn)通信。

PLC與打印機(jī)連接，可將過程信息、系統(tǒng)參數(shù)等輸出打?。慌c監(jiān)視器連接，可將控制過程圖像顯示出來；與其它PLC連接，可組成多機(jī)系統(tǒng)或連成網(wǎng)絡(luò)，實(shí)現(xiàn)更大規(guī)?？刂啤?/p>

與計(jì)算機(jī)連接，可組成多級分布式控制系統(tǒng)，實(shí)現(xiàn)控制與管理相結(jié)合。遠(yuǎn)程I/O系統(tǒng)也必須配備相應(yīng)的通信接口模塊。

3．智能接口模塊

智能接口模塊是一獨(dú)立的計(jì)算機(jī)系統(tǒng)，它有自己的CPU、系統(tǒng)程序、存儲器以及與PLC系統(tǒng)總線相連的接口。

它作為PLC系統(tǒng)的一個(gè)模塊，通過總線與PLC相連，進(jìn)行數(shù)據(jù)交換，并在PLC的協(xié)調(diào)管理下獨(dú)立地進(jìn)行工作。

PLC的智能接口模塊種類很多，如：高速計(jì)數(shù)模塊、閉環(huán)控制模塊、運(yùn)動控制模塊、中斷控制模塊等。

以下鏈接皆有貨

TUFLINE BODY WCB PLUG MONEL 2" 2 WAY GLOBE VALVE

TURCK BUS STOP NETWORK STATION PDP-IOM 881 18...30 VDCPDP-IOM881

TURCK BUS STOP NETWORK STATION PDP-IOM-881 10...30 VdcPDPIOM881

Turck Electronik Multi Safe Amplifier Relay MS14-33 Ex0-RMS1433EX0R

TURCK PICONET EXTENSION MODULE PINOUT CONNECTOR SNNE-0008D-0006SNNE0008D0006

TURCK PICONET EXTENSION MODULE PINOUT CONNECTOR SNNE-0808D-0001SNNE0808D0001

TURCK PTP 16-DBS25 , PTP16DBS25 16-Port Junction Box

TURNBULL TCS 8 LOOP CONTROLLER MK.2 CIRCUIT BOARD 076032 ISSUE4

TUTCO CH43727 150W 120V Heater

TUTCO DHC3911-16-3P 16KW DUCT HEATER W/ INTEGRAL LIMIT CONTROLS480V 3PH 48"X6"

TUTHILL KINNEY KC-5 KC5 802497 TWO STAGE ROTARY PISTON VACUUMPUMP

 TUTHILL MODEL 30 ST-030 CAST IRON CENTRIFUGAL PROCESSPUMP

TUTHILL PUMP CO MOTOR B2725-3 1/3 HP 208-220/440V 3PH FRAME

TUTHILL ROTARY GEAR PUMP 4108V-C-7 4108VC7 1" INLET / OUTLET-

TWA CB.25 C4265B Search Coil Capacitor Block

TWD Electric Heater 4-Bolt Flange Heating Element 3P 200V 2KW 2KW

TWECO AUTO-GUN Body Weld Gun

TYCO KEYSTONE PNEUMATIC MRP-004U-K-S080 ACTUATOR 120 PSIMRP004UKS080

U.S Seal Pump Seal PS-842 PS842

U.S. FILTER WALLACE & TIERNAN FLOW METER 1" NPT5210B02216XXID436SXX 5042-108F

 UFI HYDRAULIC RETURN LINE FILTERERA52NCC

UI Uinics Digital Speed Meter SP-510S SP510S 200V

 ULINE 4MIL BLUE VCI POLY SHEETING S-15447 48" 500' FT

 ULINE 5S BRUSH BROOM DUST PAN SHADOW BOARD BLUEH-8043BLU

 ULTRA GEAR PUMP GL 114 VB GL114VB CM3/REV 114 10 BAR

 ULTRA GLIDE PUSH PULL CABLE 02961409

 ULTRA-DEX S16R SCLCR3 INDEXABLE BORING BAR 22698-0645

ULTRAFILTER FILTER TYP AG 0288 VESSEL NO. 230 16 BAR 18L 3" NPTFILTER HOUSING

 ULTRAMATION MOVEABLE HOUSING LINEAR THRUSTER 1A-1BYE1A1BYE

 ULTRAMATION MOVEABLE HOUSING LINEAR THRUSTER 1A-ABYE1AABYE

 ULTRATECH ULTRA BURP FREE FUNNEL 0651 31500259 13X11 5 GALGALLON

 ULTRA-TWIN RESPIRATOR FACEPIECE 4LR35

ULVAC DTP-180S DTP180S 198 L/MIN 10 KPA 100V 1PH ROCKING PISTONVACUUM PUMP

ULVAC PIRANI GAUGE SENSOR HEAD WP-02 WP02 -

ULVAC REBUILT VACUUM VALVE UFC070

ULVECO POWER TRANSFORMER AA 22673 PRI: 208-220-240V SEC:25V 80A2069VA 2069 VA

ULVECO POWER TRANSFORMER AA 22673B 080-0010 208-220-240V 27V2KVA 2066VA

 UM UNIMEASURE TRANSDUCER HX-PA-10 94.87 mV/V/inch

 UNAXIS BALZERS CUBE LITE OUTER MASK BB282761-T W0228318185001

UNAXIS Outer Mask BB246713 BB246713/HARD

Unaxis Sand Blasting Device Sand Blaster Out Side BB282628-T BB282 628 -T

 UNAXIS SILICON OUTER MASK ARQ-931 SIN-V5 102230556

UNI CHAIN CONVEYOR CHAIN 39LFPRRTK0750SS LF 882 TAB PRR-K750SSBROWN 10FT X 7.5"

 UNI CHAIN PLASTIC CONVEYOR BELT BELTING 18PP PP20W18PPPP20W 10FT 12"W

UNI OELER LUBRICATOR PUMP ELO 302 24V COIL 12VA 12 VA

Uniaxis Magnet System ARQ 930 AG ARG930AG 102103622

Uniaxis Magnet System ARQ 930 AG ARG930AG 102151546/AG

 UNICHAIN BLUE CONVEYOR BELT BELTING CHAIN 10' FT 12"W

UNICO BUS CAPACITOR MODULE BOARD 318-916.0 9721 400-345

UNICO CIRCUIT BOARD 100-198.11 100-198.11 0844 019-0339-00104-462-SCR

UNICO CIRCUIT BOARD CARD 307-088.1 307088.1 3070881

UNICO CIRCUIT BOARD FOR DRIVE 316-465.1 9713 316465.1

Unico Converter I/O Interface Circuit Board 704-482 704482310-549.03

Unico Converter I/O Interface Circuit Board 704-557 704557310-549.03

Unico Dual 14-Bit Resolver Interface Circuit Board 308229 Rev8

Unico High-Speed Serial Data Interface w. Memory & DMA Board313025 Rev 7

UNICO INC CIRCUIT BOARD CARD 306-567 306567 REV 4

UNICO INC CIRCUIT BOARD CARD 309-482.3 309482.3

Unico Parallel Input/Output Interface 24 VDC Board 313023 Rev 2312.203.1 9839

Unicor Programmable Message Display 76731-16 Rev A 115/230 Volt.3/.15 Amp

UNIMEASURE INC. LX-PA-25 , LXPA25 Linear Position Transducer

UNION 3 JAW LATHE CHUCK 36312 A8 36312A8 A5229 12"DIA -

UNION 3 JAW LATHE CHUCK DPC11608WSP 123-K 10"DIA -

UNION 4 JAW LATHE CHUCK 518 10"DIA -

 UNIPOWER POWER SUPPLY CPCIB2933 802-1400-0000 2.8A 2.8 AAMP

UNIPOWER POWER SUPPLY FET305-4/CN FET3054CN 100-120VAC 7A 7 AMPA 300W

 UNIROYAL POWERGRIP TIMING BELT 1000XH400 4" WIDTH

 UNIROYAL POWERGRIP TIMING BELT 1600XXH300 3 " WIDTH

UNIT MASS FLOW CONTROLLER UFC-1200 20SCCM RANGE 15VDC 35 BARMAX

UNITED ELECTRIC HT-435034 SENSOR PROBE

 UNITED ELECTRIC PRESSURE SWITCH J54 25 9644 J54259644

 UNITED ELECTRIC TEMPERATURE SWITCH 9333 D21BC E540-150°F

 UNITED ELECTRONICS CONTROLS SPACE PAK I921K33 115/230 VAC10A 10 A AMP

UNITRON CIRCUIT BOARD CARD 12-26 1951603926

UNITRON CONTROL CIRCUIT BOARD CARD 12-6 195160536REV. Y

UNITRON PARALLEL CIRCUIT BOARD CARD 12-2 195140902REV. C

UNITRONICS V350-35-T2 PROGRAMMABLE LOGIC CONTROLLER 24Vdc5.5W

UniTro M-53 DA/DLS w. Monit

UNIVER K200-080-100M ALUMINUM PNEUMATIC AIR CYLINDER 80MM BORE100MM STROKE

UNIVERSAL CIRCULAR STADIUM LIGHTING CAMERA 47063506 102 OF A602-4MIL

UNIVERSAL DYNAMICS PC CIRCUIT BOARD CARD PCB-086A 84272-3649

Universal Instrument Vision Interface Board 45521101-E DEV10552TET/L 26687 1000

UNIVERSAL INSTRUMENTS 48699901 C 48699901C 50254001

UNIVERSAL INSTRUMENTS 48699901 C 48699901C 50270702

UNIVERSAL INSTRUMENTS CIRCUIT BOARD CARD 45981602 REV N/CTET/L26687

UNIVERSAL INSTRUMENTS LOC I/O CIRCUIT BOARD PLC CARD44308902-A

 UNIVERSAL INSTRUMENTS SPINDLE HEIGHT GAUGE 45465601

Universal PCB 30452900-A 30452900A 5100PF0123

UNIVERSAL PTF1 CONTROL I/O CIRCUIT BOARD CARD 46501

 UNIVERSAL SYSTEMS THERMO-FLO PLUS HOSE G115885 10FT 240V50W RTD SENSOR

 UNKNOWN BRAND 085-38-226 AIR/OIL/MIST SEPARATOR FILTERCARTRIDGE 4" NPT

UNKNOWN BRAND CIRCUIT BOARD CARD 372.00.291/1 372-00-291-1

UNKNOWN BRAND NAME AMPLIFIER CIRCUIT BOARD KC60-088B KC60088BKC60-088 KC60088

UNKNOWN BRAND NAME CIRCUIT BOARD 3913-461-78-001ECN-11553 ECN11553

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 0015006REV. 2

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 1022585 REV B

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 2494-8796 REV AA4142-2460

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 2494-8796 REV AA 4142-2478D

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 274261

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 3922 541 91623 01

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 5011016C 5011016-C

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 515M

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 603213142 J

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 603213323 B

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 607E01B

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 6314A H VER C GP 6314A HC

UNKNOWN BRAND NAME CIRCUIT BOARD CARD 6314A I VER B

UNKNOWN BRAND NAME CIRCUIT BOARD CARD D073660 D073658 D073659180603-21

UNKNOWN BRAND NAME CIRCUIT BOARD CARD DAA-5070PCB REV. A

UNKNOWN BRAND NAME CIRCUIT BOARD CARD HS-A PPB15LC PP815 PCBVERSION C

UNKNOWN BRAND NAME CIRCUIT BOARD CARD MP184-0-F MP1840F

UNKNOWN BRAND NAME CIRCUIT BOARD CARD P-29-020 P29020

UNKNOWN BRAND NAME CIRCUIT BOARD CARD P-5323B/1 GB150H-3FA2

UNKNOWN BRAND NAME CIRCUIT BOARD CARD PL60399 60346-2

UNKNOWN BRAND NAME CIRCUIT BOARD CARD SA 847007754 847008000847007747

UNKNOWN BRAND NAME CIRCUIT BOARD CARD SHL040306

UNKNOWN BRAND NAME CIRCUIT BOARD CARD V114649 041613 REV D

UNKNOWN BRAND NAME CIRCUIT BOARD CARD VF-4 CONTROL-7-C

UNKNOWN BRAND NAME CONTROL CIRCUIT BOARD 274261

UNKNOWN BRAND NAME CONTROL CIRCUIT BOARD CARD 225797 225805225821 REV C

UNKNOWN BRAND NAME CPU CIRCUIT BOARD CARD RX-92001 RX92001PB86051-01

UNKNOWN BRAND NAME DETECTOR CIRCUIT BOARD CARD PB86

UNKNOWN BRAND NAME DISPLAY CIRCUIT BOARD CARD N7GE-1100-22AJ REV2.00

UNKNOWN BRAND NAME DISPLAY CIRCUIT BOARD PANEL CONTROL -03003 REV D

UNKNOWN BRAND NAME DISPLAY UNIT CIRCUIT BOARD CARD SHL040924

UNKNOWN BRAND NAME DRIVE UP13 7004-0128 ISS. 2 9398-01132700-150

UNKNOWN BRAND NAME ENDORSER STAMP DRIVER BOARD ME17610 ME-

UNKNOWN BRAND NAME METROLOGIC CIRCUIT BOARD CARD 35555-D35555D

UNKNOWN BRAND NAME NAME CIRCUIT BOARD CARD T-1950D-2 T1950D2

UNKNOWN BRAND NAME PLC CIRCUIT BOARD CARD 514477-01B 514477-01 BD514476-01 A

UNKNOWN BRAND NAME POWER CONTROL TC-818 TC818

UNKNOWN BRAND NAME PRINTER DRIVER BOARD ME20498 ME-204982493-2717 2494-9273