福建中立恒自动化设备有限公司
主营产品: 大型DCS系统备件,进口工业机器人备件,大型伺服系统电机驱动器,变频器,传感器,安全栅,编码器,电磁阀,流量计等机械或电气部件产品
0100-09007板卡船舶半导体工控备件优势经销
发布时间:2024-11-10

福建中立恒自动化设备有限公司


1.输入/输出单元

输入/输出单元通常也称I/O单元或I/O模块,是PLC与工业生产现场之间的连接部件。

PLC通过输入接口可以检测被控对象的各种数据,以这些数据作为PLC对被控制对象进行控制的依据;同时PLC又通过输出接口将处理结果送给被控制对象,以实现控制目的。

由于外部输入设备和输出设备所需的信号电平是多种多样的,而PLC内部CPU的处理的信息只能是标准电平,所以I/O接口要实现这种转换。

I/O接口一般都具有光电隔离和滤波功能,以提高PLC的抗干扰能力。另外,I/O接口上通常还有状态指示,工作状况直观,便于维护。

PLC提供了多种操作电平和驱动能力的I/O接口,有各种各样功能的I/O接口供用户选用。I/O接口的主要类型有:数字量(开关量)输入、数字量(开关量)输出、模拟量输入、模拟量输出等。

常用的开关量输入接口按其使用的电源不同有三种类型:直流输入接口、交流输入接口和交/直流输入接口。

常用的开关量输出接口按输出开关器件不同有三种类型:是继电器输出、晶体管输出和双向晶闸管输出。

继电器输出接口可驱动交流或直流负载,但其响应时间长,动作频率低;而晶体管输出和双向晶闸管输出接口的响应速度快,动作频率高,但前者只能用于驱动直流负载,后者只能用于交流负载。

PLC的I/O接口所能接受的输入信号个数和输出信号个数称为PLC输入/输出(I/O)点数。I/O点数是选择PLC的重要依据之一。当系统的I/O点数不够时,可通过PLC的I/O扩展接口对系统进行扩展。


2.通信接口

PLC配有各种通信接口,这些通信接口一般都带有通信处理器。

PLC通过这些通信接口可与监视器、打印机、其它PLC、计算机等设备实现通信。

PLC与打印机连接,可将过程信息、系统参数等输出打印;与监视器连接,可将控制过程图像显示出来;与其它PLC连接,可组成多机系统或连成网络,实现更大规模控制。

与计算机连接,可组成多级分布式控制系统,实现控制与管理相结合。远程I/O系统也必须配备相应的通信接口模块。


3.智能接口模块

智能接口模块是一独立的计算机系统,它有自己的CPU、系统程序、存储器以及与PLC系统总线相连的接口。

它作为PLC系统的一个模块,通过总线与PLC相连,进行数据交换,并在PLC的协调管理下独立地进行工作。

PLC的智能接口模块种类很多,如:高速计数模块、闭环控制模块、运动控制模块、中断控制模块等。

GASKET KIT FOR REFRIGERATION COMPRESSOR BITZER 2CC-4.2

CIVIL DEFENCE SUPPLY MAINS CHARGING IT FOR T12  DELTA DRAGON PORTABLE SEARCHL

SMC AW30K-F02DE-B FILTER REGULATOR WITH VHS30-F02B-S RELIEF VALVE

MIMIC COMP. AEM4-S ALARM ANNCIATOR

PLEXUS 25102 STROKE GENERATOR PCB

NORGREN RM/55433/M/125 RODLINE DOUBLE ACTING AIR CYLINDER 32MM STROKE 125MM

TEIKOKU MACHINERY 200X100MSM-Am SLEEVE FOR BRINE PUMP

 

SEEPEX ROTOR 0012-12MD

KINGFORD KF-D-4VO PCB CARD 01006052C

ANCHOR FLUID POWER W59-16-16-SS-BS-PASS 4-BOLT STAINLESS STEEL FLANGE 2407161

DANFOSS TYPE KPS 79 TEMPERATURE SWITCH 060L3137

SEA TEL INC. P/N 112459 REV.G PEDESTAL CONTROL IT

ENDRESSHAUSER MR2250-R5D6S1 MOISTURE MEASURING INSTRUMENT RH-PLUS 2250

KAMEWA LOAD INCREASE CONTROLLER

ABB 6197/14-101-500 IVERSAL DIMMING ACTUATOR UD/S 6.315.2

CAT 245-5829 BATTERY COOLANT REFRACTOMETER WITH ATC

DEIF IMCON FC-5N FREQUENCY CONVERTER

DEIF ACV-3N AC VOLTAGE CONVERTER

PELTOR MT52H79F-18 Aviation Headset B2244

SICK SAFETY MAGNETIC SWITCH RE-27-SA10L-1059511

REXROTH MECMAN 2995-4-0002-2 VALVE 30 BAR

MAUREY P36-8M-30-SH SPROCKET WITH SHX1 BUSHING

VILLEROY  BOCH 93260000 ACCESSORIES EXTRACTOR

SAIA-BURGESS PCD7.W202 OUTPUT RANGE MODULE VERSION A

BUDENBERG STANDARD TEST GAUGE

JRC M1302/M5020 MAGNETRON

TURCK P-RKV 80-1158XL-5M HAZARDOUS LOCATION CORDSET

SPRIANO PM SET 45 ELECTRONIC TRANSMITTER ATEX 003 0-50 BAR E28202

WANDFLUH AH4D101A/F HYDRAULIC MANUAL VALVE

PEPPERL FUCHS KFD2-GU-Ex1 TEMPERATURE TRIP AMPLIFIER

MICO 02-500-017 REPAIR KIT

NORCONTROL NN-803.2 ANALOG OUTPUT ADAPTER CARD

GLOBALMARK BROWN POLYESTER B569 2.25" X 100' TAPE CARTRIDGE

GLOBALMARK GREEN B569 4" X 100' TAPE CARTRIDGE

GLOBALMARK WHITE B569 4" X 100' TAPE CARTRIDGE

BW GAS DETECTOR PUMP TEST CAP  HOSE - LOT OF 10

FRESE 53-1181 OPTIMA COMPACT ACTUATOR

KANEKO SANGYO M00LT-8-A12P SOLENOID VALVE

DRAEGER 8313832 SMART PUMP KRRE-1058

HONEYWELL HJZTPX KEYBOARD JOYSTICK CCTV CONTROLLER

KRACHT SPVF 25 A1G 1 A 20 PRESSURE RELIEF VALVE

RAVEN INDUSTRIES ASST-0050014 GPS INLINE AMPLIFIER LA-12-L1L2-N

DEIF TAS-331DG SELECTABLE TRANSDUCER AC110V

SIEMENS GBB.131.1E DAMPER ACTUATOR

DEIF MALLING KONTROL HORN 173, 220V

RIKEN KEIKI HW-6214 SENSOR FOR GD-A8, VCM - HW-6214B

RIKEN KEIKI HW-6214(P) SENSOR FOR GD-A8, VCM - HW-6214B

OTECO 431560 RH,WGBJ,ROL ASSY,6050-50,NBR

PELCO WCS1-4 ENVIRONMENTAL POWER SUPPLY

ELECTROLUX/HP-TRONIC 4388803-01 THERMOSTAT W3105N

TAIYO AA 195A SIC DISPLAY

JRC MSF1425B MARINE MAGNETRON

K376637 H09 ISOLATOR PCB CARD MCC85ADPTI2

FALCON II 1S007354 SOLENOID VALVE

PHOENIX CONTACT UMK-SE 11,25-1 INTERFACE MODULE FOAB RL/8-2B-ARK02B

REXROTH BOSCH R900542116 SEAL KIT LC 32.-2X/

DANTEC DYNAMICS 9072C0081 TURBO CHARGER SENSOR

NORIS RW54-S LIMIT VALUE SWITCH -  

HISCO CL.1.5 AMMONIA COMPOD GAUGE 0.1-2 MPa BOTTOM MOT

SPASCIANI TR 82 FULL FACE MASK 112300000

KLOCKNER MOELLER PS4-201-MM1 COMPACT PROGRAMMABLE LOGIC CONTROLLER

MITSUBISHI C6616 RIX CANOPEN BASE IT 16 PT. 24VDC

ENERCON DM 3270 DIGITAL FREQUENCY PANEL METER 110V 50 Hz

SIEMENS 3RW3035-1AB04 SIRIUS SOFT STARTER

DANFOSS MBT 5250 TEMPERATURE SENSOR GEA 0005-1534-400

OMRON CPM1A-MAD11 A/D D/A IT

MEIYO ELECTRIC RESISTANCE BULB PTR-A11 P 6ma

WIELAND BAMBERG BTB 16R INPUT TERMINAL BOARD

ECOLAB LM-4000 X-MASTER CONTROLLER

PELCO DA104DT VIDEO DISTRIBUTION AMPLIFIER

PELCO DA104DT VIDEO DISTRIBUTION AMPLIFIER

REXROTH 372240 PNEUMATIC CONTROL VALVE

MARTEK MARINE NAVGARD BNWAS BRIDGE WING RESET

FUJI ELECTRIC PXR5NEY1-1V000 TEMPERATURE CONTROLLER

KRAMER TOOLS 105A STEREO AUDIO DISTRIBUTION AMPLIFIER

PRICE WHEELER BRICK WALL SERIES MODE SURGE FILTER PL-HW-20W-240

REXROTH MECMAN 299-119-408-0 3/2 WAY SOLENOID VALVE

FESTO VL-5-14 PNEUMATIC VALVE

NORGREN L68M-NNP-ERN HIGH FLOW AIR LUBRICATOR

PARKER 131M7550 SOLENOID VALVE S1913A 3 WAY VALVE

DT 2236 PHOTO CONTACT DIGITAL TACHOMETER

DAFA PF-224 CARRY 2000/24 PORTABLE DIESEL TRANSFER PUMP

IMPERIAL 644-C 600 SERIES 4-VALVE MANIFOLD

TERMOELEKTRO 82000 2 WIRE TRANSMITTER

GLOBALMARK BROWN B569 4" X 100' TAPE CARTRIDGE

SAVOX 400HGP344#A PUSH TO TALK IT

BLCH PNEUMATIC AF5000-10 AIR FILTER

ALTRONIC AB 014-0021K REV1 PCB

WIKA E-10 PRESSURE TRANSMITTER WITH FLAMEPROOF ENCLOSURE

MXP DER VOLTAGE RELEASE 9011063E1 220V-50Hz

FLUID AUTOMATION SYSTEMS 220V 50Hz 8W SOLENOID VALVE 311V O5 10 EACNVD

SIEMENS 5ST3010 AUXILIARY CIRCUIT SWITCH 1NO1NC, FOR 5SY/5SP/5SL -  

GROHE 40367000 ESSENTIAL TOILET PAPER HOLDER WITH COVER -  .

TORAL BN-833311-01 PCB CARD 11-3-2217-152

SHINWA SEISAKUSHO MARINE CLINOMETER OSAKA JAPAN

SIEMENS WATER TECHNOLOGIES 4080177-2 SEALING PLATE

WHIRLPOOL WP206418 WASHER WATER LEVEL SWITCH

FANAL TF 142-9 THERMOSTAT 130°...180°C

PARKER C1620S-20CK HYDRAULIC INLINE CHECK VALVE-40 GPM-4000 PSI

HAMWORTHY LC1/A11C VALVE

TRAFAG 8472.74.5717 PRESSURE TRANSMITTER - RANGE 0-250 BAR

ATLANTIC FLUID TECH LK000077 HYDRAULIC VALVE BLOCK 220V RAC

VINGCARD KDE EST-4938 R-MAIN MAGNETIC STRIPE ENCODER PCB

CONSILIUM SALWICO SWM-1KL 57 HEAT DETECTOR 37170

PARKER 316 159B T0815 T-FITTING - LOT OF 6 .

ELECTROLUX 004014 HOT PLATE; DIA 145MM 1500W 440V

ABB i-bus EIB KNX SA/S 12.6.1 SWITCH ACTUATOR 2CDG110038R0011

REXROTH BOSCH R900314048 SEAL KIT LF32DB.F/G/H-2X/7161

KAC ALARM WR2072/SR-470 MANUAL CALL POINT

LANDIS  STAEFA SQE 85.1 DAMPER ACTUATOR 24V~

STAHL 8907/51-24/45 SAFETY BARRIER i3nG5

MITSUBISHI FX0S-14MR/MT PCB JY331C79801H

HONEYWELL SENSOR CARTRIDGE 2302BCD40FCHO  2302BCD42FCHO

MANSEI JAM-2 5PE-300DR AIR MOTOR SPARES

ATLAS COPCO 2903-1016-01 COUPLING ELEMENT

HUBA CONTROL PL-528-1-V PRESSURE TRANSMITTER 528.911008191N

MIKI PULLEY LOVEJOY L-110 SPIDER COUPLING -  .

SIEMENS 3UF7000-1AU00-0 SIMOCODE PRO C PROFIBUS DP INTERFACE RELAY

IVECO AIFO 08007392 INJECTION PIPE SET

DETROIT DIESEL 05144744 PISTON PIN -  

WESTRONICS SB-WH WINDING HEATER CONTROLLER 220 VAC-50/60 Hz

ODE 4628YQ0V12 SOLENOID VALVE SERVICE KIT - 3/2 WAY

SAILOR H410 REMOTE CONTROL IT

ICONTROL M-SPL 3/1/IIB PCB

MOTOROLA PMLN5276B HEAVY DUTY HEASET WITH NOISE CANCELLING BOOM MICROPHONE

WANDFLUH AS4Z60a-S460 HYDRAULIC VALVE 350 BAR

GRAINGER KI 1.6 PRESSURE GAUGE 0-11 BAR

CKD FS1-03-3-AC100V SOLENOID VALVE

MONITEUR DEVICES FFNB-1120 WATCHMAN-VALVE POSITIONING TRANSMITTER

MTL 5061 TWO CHANNEL LOOP POWERED FIRE/SMOKE DETECTOR INTERFACE CIRCUIT PCB415/4

OMRON SYSDRIVE 3G3EV INVERTER 3G3EV-AB002MA-CUES1


展开全文
拨打电话 微信咨询 发送询价