ABB DSMB 127

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    PLC與電氣回路的接口，是通過輸入輸出部分（I/O）完成的。I/O模塊集成了PLC的I/O電路，其輸入暫存器反映輸入信號狀態(tài)，輸出點反映輸出鎖存器狀態(tài)。輸入模塊將電信號變換成數(shù)字信號進入PLC系統(tǒng)，輸出模塊相反。I/O分為開關(guān)量輸入（DI），開關(guān)量輸出（DO），模擬量輸入（AI），模擬量輸出（AO）等模塊。
     開關(guān)量是指只有開和關(guān)（或1和0）兩種狀態(tài)的信號，模擬量是指連續(xù)變化的量。常用的I/O分類如下：
     開關(guān)量：按電壓水平分，有220VAC、110VAC、24VDC，按隔離方式分，有繼電器隔離和晶體管隔離。
     模擬量：按信號類型分，有電流型（4-20mA,0-20mA）、電壓型（0-10V,0-5V,-10-10V）等，按精度分，有12bit,14bit,16bit等。
     除了上述通用IO外，還有特殊IO模塊，如熱電阻、熱電偶、脈沖等模塊。
     按I/O點數(shù)確定模塊規(guī)格及數(shù)量，I/O模塊可多可少，但其大數(shù)受CPU所能管理的基本配置的能力，即受大的底板或機架槽數(shù)限制?！?/span>

DELPHI OXYGEN SENSOR ES10236 NIB
 
DELPHI OXYGEN SENSOR ES10604 NIB
 
DELPHI OXYGEN SENSOR ES10567 NIB
 
CUTLER-HAMMER 400-800A CURRENT SENSOR ITE K-800
 
BANNER * SENSOR CABLE * MM 55441
 
TOLEDO TRANSDUCERS 40KN CAPACITY TRANSDUCER, ZLC-0040
 
HONEYWELL * SENSOR CABLE * USPEM-07YR11

BANNER 27190 PHOTOELECTRIC DC POWER BLOCK OPBTEQDH NIB
 
ALLEN BRADLEY GLASS FIBER OPTIC CABLE 43GT-TTC20SL SER A NIB
 
TEMPOSONICS LDT POSITION SENSING SYSTEM ANALOG OUTPUT MODULE 011024070320100?0
 
MARATHON MONITORS INC. ZIRCONIA CARBON SENSOR
 
DELPHI AIR FLOW SENSOR 10039 NIB
 
DAYTRONIC LINEAR SENSOR DS6000A
 
ALLEN BRADLEY 30VDC 100mA PHOTOSWITCH PHOTOHEAD 42DBS-5100 SER. B
 
STI MINISAFE RECEIVER 42672-0480 MODEL MS4348BR
 
SICK LIGHT CURTAIN RECEIVER C40E-1203CC010
 
IFM EFFECTOR * PROXIMITY SENSOR * IG5788-IGK3008B?BPKG/US
 
TELEMECANIQUE NAUTILUS 200MA 145 PSI PRESSURE SWITCH XML-F010D2036 101150
 
IFM EFECTOR100 IGA200-ABOA/SL/?LS-100AK IG0341 20..250V NIB
 
BANNER LIGHT CURTAIN MSR4624Y
 
ELECTRO-SENSORS MAGNETORESISTIV?E SENSOR, 932 NNB
 
IFM EFECTOR LEVELTRACK SENSOR LK 7023
 
PARKER TAIYO PROXIMITY SENSOR ZD136E-14-T
 
VALMET AUTOMATION KAJAANI ANALYZER MEASUREMENT SENSOR LC-100
 
STI * SAFETY CURTAIN RECEIVER * MS4432R
 
NAMCO EE530-58420 PROXIMITY SWITCH, NNB
 
NAMCO EE230-3820 90°ROTATABLE WELD FIELD IMMUNE CYLINDICATOR PROX. SENSOR NNB
 
ROSEMOUNT TEMPERATURE SENSOR PROBE 78 N22C30A045T26 NNB
 
SICK * C 4000 SAFETY LIGHT CURTAIN RECEIVER NNB * C40E-1203DB200
 
ISSC SENSOR RP-507 NIB
 
TORK 1000W 1800VA 105-285VAC PHOTOCONTROL 2007A
 
IFM EFECTOR PROXIMITY SENSOR IGA2008-ABOA/SL?/IGO341 NIB
 
ASHCROFT 15A 125/250/480VAC PRESSURE SWITCH B424B XFMFS NIB
 
NAMCO EE530-91420 WFI HammerHead 9-WAY CONFIGURABLE PROX SENSOR, NNB
 
DELPHI SS10135 SPEED SENSOR, NIB
 
10.8-26.4VDC EMITTER SENSOR ASSEMBLY HPJ-R22-001
 
FOXBORO 820 INTELLIGENT TRANSMITTER NO CASING L0121FR-A
 
DELPHI OXYGEN SENSOR ES10407 NIB
 
DATALOGIC BARCODE READER SCANNER MATRIX 400 400-010 *PLUG*
 
IFM EFECTOR 200 PHOTOELECTRIC SENSOR 0I0002
 
OPCON 115VAC REFLEX PHOTOELECTRIC SENSOR 1450B-6511
 
BANNER MULTI-BEAM SCANNER BLOCK 16441
 
SUNX DIGITAL PRESSURE GAUGE DPX-410-IN 102468