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。
HAMMOND POWER SOLUTIONS 1.0 KVA TRANSFORMER C1F1C0LES
TRI-TRONICS PHOTOELECTRIC RECEIVER PTR-F
BRANDED 6A2H VENTED GRINDING WHEEL PER-181266
ABB 10A 240VAC TIME DELAY RELAY W/ BASE TDB120AL
ALLEN-BRADLEY .5mH 55A 3 PHASE LINE REACTOR 1321-3R55-B
WATLOW SERIES 965 TEMPERATURE CONTROLLER 965A-3CD0-02AA
MINSTER TIME DELAY CIRCUIT BOARD 491-0323
CRYDOM 120V 40A PROPORTIONAL CONTROLLER RPC1240
PARKER 3/4" STAINLESS STEEL FLARLESS FITTING 12BU-SS
SOLA 5V 6.0A POWER SUPPLY SCP30-S5-DN
LOT OF (6) SENTRY SUPPLY ZINC 3/4" 1-EAR WALL BRACKETS 656-9282
ELGES 50MM ID X 75MM OD JOINT BEARING GE50-UK-2RS
RADISYS CIRCUIT BOARD 61-0215-10 EXM-MX40
AGASTAT TIMING RELAY T KIT 2412-01
KAMYR ANDRITZ COUPLING 1011386-Z011152
FOR PARTS OR REPAIR ERA INDUSTRIAL COMBUSTION SYS BURNER CONTROL RELAY ERA-04F2
SCHNEIDER 63-80A 600V THERMAL OVERLOAD RELAY LRD3363
MOORE SIEMENS CONTROL BOARD FACEPLACE 15756-8-2
JORDANVALVE SIZE 3/4 MODEL 60 REGULATOR VALVE DI 303SS
SYNCHRON 110V 3W 8 RPH MOTOR HW201RC-24
ACOPIAN REGULATED POWER SUPPLY 32J50
FOR PARTS OR REPAIR SICK PHOTOELECTRIC PROXIMITY SENSOR DS60-P21111
GE GENERAL ELECTRIC 120V RED INDICATING LIGHT CR104PLG92R
RELIANCE ELECTRIC MEMORY MODULE 57C413-3F 57413-3F
SIEMENS K60 INTERFACE MOTING PLATE 3RK1901-0CA00
AUTO-PONENTS PNEU-TROL EXHAUST VALVE EV-125
ALLEN-BRADLEY .5HP POWERFLEX 40P AC DRIVE 22D-D1P4N104
1 ALLEN-BRADLEY .5HP POWERFLEX 40P AC DRIVE 22D-D1P4N104
MAC 120V VAC-120PSI SOLENOID VALVE 35A-BAE-DAAA-0BA
MAC 24V 1/8" SOLENOID VALVE 45A-LAC-DDAJ-1KD
EDWARDS RED REPLACEMENT LENS CAP FOR 90 SERIES FLASH/STROBE 92-LR
MAC 24V SOLENOID VALVE PME-591CAAA / PME-591CA
MAC 120V 1/4" SOLENOID VALVE 113B-111AAAA
WILKERSON 3/8" X 1/4" 0-125 PSI REGULATOR R19-03-FA00B
KALMAR AC OIL FILTER ELEMENT 4855745 74855745
SETON ROLL OF COMPRESSED AIR PIPE MARKERS FITS 3/4"-2-3/8" PIPE 77979
BIMBA 3/4" STROKE PNEUMATIC CYLINDER SR-091-NR
BIMBA SEAL REPAIR KIT K-B-17
ABB 10A 250V TEMP SENSOR KIT 2520032-090-065 61200541
MRC DOUBLE ROW BALL BEARING 5215MG
LOT OF (250) SCHWER FITTINGS 1/4" TUBE OD IONS PO-U53B25-4L
KINGSTON 1/4" NPT 200 PSI RELIEF VALVE OG15749.2CL
AEG MODICON P810 POWER SUPPLY MODULE AS-P810-000
GENERAL ELECTRIC CIRCUIT BOARD 44A398725-G01
CTM INTEGRATION DISPLAY MEMBRANE OVERLAY PE-IN1041
MARTIN QD SHEAVE 6-5V-1090-E
BANNER 10-30V PHOTOELECTRIC SENSOR QS18VN6FF100Q7 71879
COLSON HEAVY DUTY FLOOR LOCK 9.06025.08
BIMBA 1-1/4" BORE X 1/2" STROKE PNEUMATIC CYLINDER 120.5-DP
PMC 0-50 PSIG 4-20MA 24VDC PRESSURE TRANSMITTER PTEL-HC-CV/P
GE 600V 1" STROKE PULL 115V COIL SOLENOID CR9500B101B2A
SHOT 25A 250V OVER TEMP SENSOR PT-I/PQI
SCHNEEBERGER LINEAR BEARING RAIL 35-0470-15-15-G2
DODGE 3/4" 2-BOLT FLANGE BEARING LFTSC012
O CONTROLS 6 WAY BYPASS VALVE NV62L
EATON 1-POLE 2A CIRCUIT BREAKER FAZ-C2/1-NA
ASCO 120V SOLENOID VALVE COIL 64-982-1D
AVTRON INCREMENTAL ENCODER M37S1D1024P000
GENUINE SKF CYLINDRICAL ROLLER BEARING NU-2211-ECJ
NORDSON 240V 147W .496" X 1.20" HEATER CARTRIDGE 1054660
ANFIELD 3/8" FLOW CONTROL NEEDLE VALVE NFC-3/8"NPT-17T
MAGNALOY MODEL 600 2-3/8 X 5/8 COUPLING HUB M60021220
ATLAS COPCO NUTRNER CONTROL POWER FOCUS CONTROLLER PF4000-C-PB-HW
JOHNSON SERVICE 220V/240V COIL ASSEMBLY 49-19431
SPECHER SCHUH 24/28V CONTACTOR CA3-12
OF (5) EUPEC POWER MODULES TT142N16KOF
BIMBA 3/4" X 3/8" PNEUMATIC CYLINDER FS-040-.375-MMTEE0.5
OF (4) AUTOLITE 26 SPARK PLUGS
ABB 300V TERMINATION CABLE NKTU01-10
3 ENERGIZE POWER ELECTROSTATIC DISCHARGERS 232A2008P21
TIMKEN SPHERICAL ROLLER BEARING 23228EMW33
KEYENCE 10A 28V PROXIMITY SWITCH ES-32DC
SPRECHER SCHUH 220/240V COIL 3-POLE CONTACTOR CA6-140
BIRCHER 6A 250V 0.1 SEC-10 MIN TIMING RELAY MRAB
EATON 7A 480Y/277V 2-POLE CIRCUIT BREAKER FAZ-D7/2-NA
FK BEARINGS 5/8" LEFT HAND MALE ROD END ML10SBZ
EMERSON REV F LS D0 24V ETA (R) REDDANT MODULE 12P6486X062
ANDREWS MPB 15MM BORE THRUST BEARING 2902
SUPERIOR ELECTRIC SLO-SYN SYNCHRONOUS STEPPING MOTOR BM101024
SPRECHER SCHUH 1.6-2.5A 600V 3PH MOTOR STARTER PROTECTOR KTA3-25
MICRO-SWITCH 15A 480V LIMIT SWITCH BZ-RS
MAGPOWR 50LBS MAX TENSION SENSOR CL2-50
TELEMECANIQUE 10A 600V 1NO YELLOW MOMENTARY PUSH BUTTON XB4BA51
ALLEN-BRADLEY SOLID STATE OVERLOAD RELAY 4-IN/2-OUT 193-EC2EE
OF (2) NIBCO WEBSTSS 3/4" BALL VALVE H-43703
HORTON CALIPER BRAKE IT 835000
FESTO FLOW CONTROL VALVE GRLA-M5-B
BR ACOPOS PLUG-IN CAN INTERFACE MODULE 8AC110.60-1
PHD AIR CYLINDER AVS-1X4-E-Z1
NORDSON 6MM TUBE X 1/4" NPT PNEUMATIC TEE FITTING 1019511A
EATON 3A 3-P 480Y/277V CIRCUIT BREAKER FAZ-C3/3
BALLUFF 10-30V INDUCTIVE SENSOR BES Q40KFU-PAC35E-S04G47500
MTE 480V MATRIX HARMONIC FILTER CAPACITOR ASSEMBLY MDP0014D
RBC DOUBLE AIRFRAME CONTROL BALL BEARING S5PP2
COOPER BUSSMANN 600V 200A 3-POLE FUSE HER J60200-3-CR
1 COOPER BUSSMANN 600V 200A 3-POLE FUSE HER J60200-3-CR
KING ENGINEERING 0-30PSID 4-20mA D/P TRANSMITTER 5600-3-3-1
BANNER 30V PHOTOELECTRIC SENSOR QS18VN6FF100Q7 71879
BURKERT 110/120V BRASS SOLENOID VALVE 0211-A-5/64-FPM-BR 450773P
TAKE OFF MONTALVO 1000 LB. ESF2 LOAD TRANSDUCER CELL WINDER REWINDER
ENDRESSHAUSER LIQUIPHANT LIQUID LEVEL TRANSMITTER FTL51C-PAEMDM5E5AA
SQUARE D SER.A 30A NON-FUSIBLE DISCONNECT SWITCH 9422TCN30
FAIRCHILD MODEL 20 250PSI IN 150PSI OUT VOLUME BOOSTER 20712
1 FAIRCHILD MODEL 20 250PSI IN 150PSI OUT VOLUME BOOSTER 20712
FESTO SOLENOID VALVE VMPA1-M1H-E-PI
SEALMASTER 3/8" FEMALE ROD END ARE-6N
ANDERSON INSTRUMENTS 40V PRESSURE TRANSMITTER HB20051015000C
FIRST ROBOTICS BRAKE OUT MODULE CRIO-9403
BROWNING 2 GROOVE PULLEY SHEAVE 2TA52
NOS SUPERIOR ELECTRIC TYPE 21 3.75A POWERSTAT VARIABLE TRANSFORMER 136B
SMC 24V 2-POSITION 4-WAY SOLENOID VALVE VQ1100N-5
LOT OF 7 SWAGELOK 1/4" TUBE X 3/8" NPT MALE ELBOWS SS-400-2-6
1 LOT OF 7 SWAGELOK 1/4" TUBE X 3/8" NPT MALE ELBOWS SS-400-2-6
ENGEL GEAR MOTOR GNM3150-G2.6 W/ BEI GHA406-0500-005
NTN BALL BEARING INSERT UC206-103D
TPC PNEUMATICS 50MM BORE X 2"STROKE PNEUMATIC CYLINDER UAQB50-50D
LOT OF (6) WOOSTER 2-1/2" ULTRA/PRO MINK BRUSHES 4175 CNB042T
METAL-TECH CONTROLS DUAL RELAY OUTPUT BOARD PCB-18A
NATIONAL 3-1/4" X 1-1/2" X 1" CARBON MOTOR BRUSH 61048234 634
PARKER 3-1/4" BORE 9" STROKE CYLINDER 3.25-CMALUS14A-9.000
IBC HIGH PRECISION ANGULAR CONTACT BEARING 7018.C.T.P2H.UL
LOT OF (4) FESTO MANIF SUB-BASE VABV-S4-1S-N14-2T2
EATON BEARING ASSEMBLY SEAL KIT N5-660-14V
MARSH BELLOFRAM PANEL MOTING KIT 0328-260-02-00
ALLEN-BRADLEY GUARDMASTER LIFELINE 3 SAFETY SWITCH 440E-D13100
FUJI 20A 3POLE 120V COIL CONTACTOR SE09AA SC-E02-120V
AGASTAT RELAY SWITCHBLOCK ASSEMBLY 2412-30
ENDRESSHAUSER PRESSURE SENSOR CPA442-A1A1A11
HUB CITY 30:1 RATIO GEAR REDUCER 264 0220-62041
MILLER GREEN CROSS ARM STRAP 8183/6FTGN
ALLEN-BRADLEY PANELVIEW PLUS 600 TOUCHSCREEN PANEL 2711P-T6C20D8
ALLEN-BRADLEY PANELVIEW PLUS 600 TOUCHSCREEN PANEL 2711P-T6C20D8
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