1756-IT6I2 诚信至上,质量为本 17750668118
1756-IT6I2 诚信至上,质量为本 17750668118
PLC与电气回路的接口,是通过输入输出部分(I/O)完成的。I/O模块集成了PLC的I/O电路,其输入暂存器反映输入信号状态,输出点反映输出锁存器状态。输入模块将电信号变换成数字信号进入PLC系统,输出模块相反。I/O分为开关量输入(DI),开关量输出(DO),模拟量输入(AI),模拟量输出(AO)等模块。
常用的I/O分类如下:
开关量:按电压水平分,有220VAC、110VAC、24VDC,按隔离方式分,有继电器隔离和晶体管隔离。
模拟量:按信号类型分,有电流型(4-20mA,0-20mA)、电压型(0-10V,0-5V,-10-10V)等,按精度分,有12bit,14bit,16bit等。
除了上述通用IO外,还有特殊IO模块,如热电阻、热电偶、脉冲等模块。
按I/O点数确定模块规格及数量,I/O模块可多可少,但其最大数受CPU所能管理的基本配置的能力,即受最大的底板或机架槽数限制。
电源模块
PLC电源用于为PLC各模块的集成电路提供工作电源。同时,有的还为输入电路提供24V的工作电源。电源输入类型有:交流电源(220VAC或110VAC),直流电源(常用的为24VDC)。
底板或机架
大多数模块式PLC使用底板或机架,其作用是:电气上,实现各模块间的联系,使CPU能访问底板上的所有模块,机械上,实现各模块间的连接,使各模块构成一个整体。
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PEPPERL+FUCHS 14570/NJ8-18GM-?Z PROXIMITY SWITCH
FINCOR 104602901 REACTOR
BLOCK B9711112 TRANSFORMER 250/555VA
NORGREN 03029822 ROTARY SWITCH 2-10 BAR
SQUARE D 9070T100D20 TRANSFORMER 0.1KVA
RELIANCE ELECTRIC 410403-77AW/410?403-77W THYRISTOR DIOD
NORGREN 03029822 ROTARY SWITCH 2-10 BAR
CONRAC/CRAMER 472A-E TIMER 30MIN 115/60 10A
SIEMENS 3TF4-010-0B/3TF?40-10-0B/3TF401?0-0B/3TF40100B CO
JOHNSON A72AA-4C CLOSE HIGH TEMPERATURE CONTROL
GENERAL ELECTRIC SRPG150B80 CIRCUIT BREAKER
GENERAL ELECTRIC SRPG150B60 CIRCUIT BREAKER
TELEMECANIQUE GV2 P10 MOTOR STARTER 600VAC 6.3AMP XL
FUJI SC-03 ConTACT CONNECTOR
TB WOODS 5V805 HEAVY DUTY BUSHING
SIEMENS 3LC3-607-1TB53/?3LC36-07-1TB53/?3LC3607-1TB53/3?LC
COOPER CAMERON 2" [5002-BR] TECHNO CHECK VALVE
LEESON 114176.00 MOTOR 3450/2850RPM 60/50HZ 1/2HP XL
SMC FH6XN512-P020N HYDRAULIC FILTER
YUKEN DSG-01-2B2-D24-?60-L DIR SOLENOID VALVE
NORDSON 1036690A TURN KNOB
BANNER 27087/OSBDX 2M RANGE PHOTOELECTRIC SENSOR NIB
SIEMENS HHED63B020 CIRCUIT BREAKER 20AMP 3POLE
AEG/GOULD/MODIC?ON/SCHNEIDER AS-B810-108 ISOLATED OUTPUT
YOKOGAWA 103021PZSJ7MAF/?P/UL 0-600V AC PANEL METER X
MITSUBISHI NF50-SWU2 005 CIRCUIT BREAKER 5A 2P
CENTRY COVER CC-075-0600-075?-AAE 424 24" metaL SPRING
ITT CANNON 057-3262-000 9841 CONNECTOR/PLUG
ALLEN BRADLEY 800MR-16HA2BRA SELECTOR SWITCH
TURCK BI10T-Q34-ADZ30?X2-B1131/S34 PROXIMITY SENSOR
BARBER-COLMAN CB11-01240-022-?3-00 CONTACTOR
BANNER 16446/SBEXF SCANNER BLOCK EMITTER
VIATRAN 2184AFG PRESSURE TRANSDUCER
TELEMECANIQUE GV2ME14 600VAC MANUAL STARTER
SIEMENS 3VE1010-2F MOTOR STARTER PROTECTOR NNB
SIEMENS 3UA5-900-1D/3UA?59-00-1D/3UA590?0-1D/3UA59001D 2-
OPCON 1455A-6511 115VAC PHOTOELECTRIC REFLEX
PARKER F32VXBK023A 2 POS DBL SOL VALVE
SIEMENS 3VU1-300-0MK00/?3VU13-00-0MK00/?3VU1300-0MK00/3?VU
ALLEN BRADLEY 1492-CB2H160 CIRCUIT BREAKER 16A
ORIENTAL MOTOR 5RK40GN-AM AC MAGNETIC BRAKE MOTOR NN
RELIANCE 14C212 2POLE CIRCUIT BREAKER
BANNER 27081/OSBLV OMNI BEAM SCANNING HEAD
ALLEN BRADLEY 1492-CB3-F150 15A 3P
TELEMECANIQUE RHN412B/RHN-412?B RELAY 24VDC
SIEMENS 3UA5-900-0K/3UA?59-00-0K/3UA590?0-0K/3UA59000K .8
WESTINGHOUSE 766A026G01 RELAY 600V 100A COIL
ALLEN BRADLEY 193-EB1GB/B OVERLOAD RELAY
ORIENTAL MOTOR 5IK90GU-CTF INDUCTION MOTOR
SQUARE D 8501 X0 40 FORM CS SERIES A RELAY
ALLEN BRADLEY 800T-U90 POTENTIOMETER REMOTE
OMEGA FPM-700A DIGITAL FLOMETER GPM
FUJI BU-ECA-3010/BU-?ECA3010 CIRCUIT BREAKER 10A 3P N
CUTLER HAMMER DS200EK1/10316H?89 SERIES A AUXILIARY CONT
TELEMECANIQUE SG0-8003 PROXIMITY SENSOR
KLOCKNER MOELLER DIL00AM 190VAC/50HZ CONTACTOR
RELIANCE 0-51377-31/0513?7731/O-51377-31 MAXPAK PLUS MOT
TOSHIBA CBVX-7B4 VFSX INVERTER KEYPAD