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。
HUBBELL 30A 3 POLE LOCKING FLANGE RECEPTACLE HBL2746
GE GENERAL ELECTRIC 10A 600V 1NO/1NC AUXILIARY CONTACT CR7XR11
TELEMECANIQUE 9A 600V 1NO 120V COIL CONTACTOR LC1D0910G6
1 TELEMECANIQUE 9A 600V 1NO 120V COIL CONTACTOR LC1D0910G6
ABB 5 / 7.5 HP VARIABLE FREQUENCY DRIVE ACS501-005-4-00P2
GENERAL TOOLS 5/8" ARCH PCH 1271G-5/8
SKF ALUMINUM BEARING SEAL LER24 / B10980-24
BROWNING 2-ROW SPROCKET D100R35
EATON GREEN PUSH BUTTON LENS CAP 10250TC8N
SEALMASTER 7/16" FEMALE ROD END TR-7N
HUBBELL 30A 480V TWIST LOCK RECEPTACLE 2730A
NUMATICS 1/8" NPTF 5-PORT 24V SOLENOID VALVE 031SA4414000061
1 NUMATICS 1/8" NPTF 5-PORT 24V SOLENOID VALVE 031SA4414000061
ACCURATE 1.5" ROLLER DIA CAM FOLLOWER CR-1-1/2
WARNER VISOLUX PHOTOELECTRIC SCANNER SENSOR MCS-165
TSUBAKI 10' 80 LINK ROLLER CHAIN RF2060S / B110907
ROSS DECCO 100/130V SOLENOID COIL 171C95
PYROMATION 0-70F DEGREE TEMPERATURE TRANSMITTER 440-385U-S(0-70)F
HELWIG 1-1/4" X 1-1/4" X 1/2" CARBON BRUSH 30-491212-160-2-01
MDA SCIENTIFIC TOXIC GAS DETECTOR 870500
TELEMECANIQUE 2.5-4A 600V OVERLOAD RELAY LRD08
TB WOOD'S 20HP 460V 3 PHASE SENSORLESS VECTOR AC DRIVE WF2C4020-0N
LOT OF 10 HKK CHAIN SIZE 40 CONNECTING LINKS ANSI40
ASCO RED HAT 1/4" SOLENOID VALVE 8262G7
ALLEN-SHERMAN-HOFF SOLENOID ACTUATED CYLINDER A-224731 108342 JKB8340G001M0
ORION PRECISION AIR PROCESSOR CONTROL BOARD RZ-039-04R200 8X06
GENUINE SKF CYLINDRICAL ROLLER BEARING NU-217-ECM
ITT CONOFLOW DIAPHRAGM SEAL 316L DC200 2500 BSWA 300AM
ROSS CONTROLS MANUAL HORIZONTAL HAND LEVER 3126A3007
ALLEN-BRADLEY CONTROL BOARD 74104-396-51
AMPHENOL 12 PIN FEMALE SOCKET INSERT 10-825813-19S
AUTOMATION DIRECT OUTPUT MODULE D2-04TRS
OF 10 BUSS BUSSMANN 1/4A BLADE FUSES GMT-1/4
ROSEMOT PRESSURE TRANSMITTER 3051CG4A02A1AS5Q4 C305111124
ABB 100-250V CONTACTOR 1SBL417001R7011
PHILIPS MASTER COLOR 150W CERAMIC METAL HALIDE BULB MHC150/U/MP/3
GE FANUC 4-CH ANALOG OUTPUT MODULE IC200ALG322A
BIMBA PNEUMATIC CYLINDER 128-DP
VIATRAN 30V 0-30 IN WCG PRESSURE TRANSMITTER 348FYGDHTH
KEYENCE PHOTOELECTRIC AMPLIFIER IT LX2-70
LINK ELECTRIC CIRCUIT BOARD 5000-6
NOS MODULAR INDUSTRIAL COMPUTERS IKEY DT-5K-MIC-CXPS2 KYB REV.P2-F24R3-2
SKF NEEDLE ROLLER BEARING NKI-25/30
SIEMENS ETHERNET SWITCH 6GK5005-0BA10-1AA3
ENDRESSHAUSER LIQUISYS M LIQUID LEVEL TRANSMITTER CPM253-MS1115
MALLORY RED/YELLOW/GREEN AUDIBLE STACK LIGHT JT028-RYG-CSL
FANUC CIRCUIT BOARD A20B-1002-0190/06A
QTY 10 FESTO M5 MALE X 6MM TUBE OD STRAIGHT FITTINGS CK-M5-PK-4
SET OF 4 HELWIG CARBON GE MOTOR BRUSHES .875X1.5X3.125 10-101596
JOHN CRANE 1-3/8" SHAFT PUMP SEAL 549P122960
FURNAS SIZE 6 1 POLE CONTACT KIT 75MB14
AUTOMATION DIRECT GREEN N.O. MOMENTARY FLUSH PUSH BUTTON GCX1107
THOR TECHNOLOGIES 25-75HP BASE DRIVE MODULE 1700-0000-00105-RC
ABB REV.02 6-PIN CABLE W61/63/65 RES. 3.7M 504168881
LINK ELECTRIC RELAY MODULE BOARD 5000-5B
VALMET METSO NELES ACU ANALOG CONTROLLER PCB MODULE A413165 09
LENZE FREQUENCY INVERTER BOARD 7066N
SMC 1/2" SOFT START VALVE AV4000-N04-5DZ
LOT OF (3) SIMONDS SAW BLADES 1X035X5-8
HONEYWELL PNEUMATIC ELECTRIC SWITCH RELAY P658B-1012-2
IFM EFECTOR DIFFUSE REFLECTOR SENSOR OGH-FPKG/US100-OGH500
GATES SUPER HC V80 BELT 3VX475 / 9412-0475
GE GENERAL ELECTRIC INSTANTANEOUS OVERCURRENT RELAY 12PJC12A1
HOFFMAN FINGER GUARD A-GARD6 / 783510-22190
SICK BURKERT ELECTRONIC VALVE 6106-00199137
MRC 2" ID X 3-1/8" OD BALL BEARING 110KRDU
SAG HARBOR SOLENOID VALVE COIL V57734-F24
HY-PRO FILTER ELEMENT HP1200L15-10M
WOODHEAD 7-PIN MALE MINI-CHANGE RECEPTACLE 42805
HAGAN RUBBER CUPPED DIAPHGRAM 9351-1
AMERICAN ZETTLER 4PDT 14 BLADE RELAY AZ421-C035-1H
HUMPHREY 3/4" BORE X 1" STROKE PNEUMATIC CYLINDER 7-D-1
EFECTOR INDUCTIVE SENSOR IIB2012BAROG/UP/2LED/3M/PH-II5709
TECHKOR WIRELESS ACCELEROMETER DATA LOGGER M9E-RF-1-50G
MAGNETROL VIBRATING ROD LEVEL SWITCH V1H-D1B0-000
OHMITE RHEOSTAT REPAIR KIT 7072
OF (11) NOS PETROL GEL 4OZ WHITE FOOD GRADE SANITARY PETROL GEL
PHD CYLINDER 09135180-02 CTS6U-32X30-M
STAFFORD 1" FLANGED SHAFT MOT 1L100MXR
MILWAUKEE 1-1/2" BORE 1-1/8" STROKE CYLINDER LSV41
SIEMENS 4I /4O S7F INTERFACE MODULE 3RK1400-1DQ02-0AA3
WOODHEAD 15A 125V WATERTITE FLIP LID FEMALE RECEPTACLE 65W47
NUMATICS 3/4" MANUAL LOCKOUT VALVE VL32N06Y
DODGE TIGEAR GEAR REDUCER Q176Y010M056K1
INTRALOX 1-1/4" BORE X 130MM OD 16 TOOTH SPROCKET S1400-51PD-B
MOLEX 9P FEMALE STRAIGHT 12' 16/9 AWG PVC CORD 1300080330 47003SS
NOS NATIONAL INSTRUMENTS COMMICATIONS MODULE CAN NI PXI-8461
HONEYWELL MODUTROL 24V .80A 18W DAMPER MOTOR ACTUATOR M941A-1024
REXROTH FILLER PLATE BP352
BANDO V-BELT 3L-700
BANNER 36" FIBEROPTIC CABLE IT235
BIMBA 1.5" BORE X 3" STROKE DOUBLE ACTING CYLINDER MRS173DXPZ
TELEMECANIQUE SG SERIES MAGNET ACTUATED PROXIMITY SENSOR 7046
YASKAWA V1000 480V 20-1/9HP STANDARD AC DRIVE CIMR-VU4A0038FAA
RELIANCE ELECTRIC POWER THYRISTOR 701819-302AW
HUBBELL 15A 125V CONNECTOR BODY HBL5969VY
1 HUBBELL 15A 125V CONNECTOR BODY HBL5969VY
BALLUFF M12 ANGLED 4-PIN CORD SET M425-0000-1A-008-PX0434-050
ABB SWITCHGEAR SOLID STATE POWER SHIELD TRIP IT SS4 609905-T501
MIL-SPEC TWIN DISC TRANSMISSION PISTON 2520-00-902-1917 B1399
GENERAL ELECTRIC 3P C6A CIRCUIT BREAKER P103ULC06
EMERSON SLATROL 120V ACTIVE TRACKING FILTER IC107 *BLEMISHED*
HITACHI SEIKI DISTRIBUTION BOARD 13-08-00-00 CA-DIS.DB
LOT OF (18) ALLEN-BRADLEY CLOSE AUTO/OPEN LEGEND PLATES 800T-X502
R.S. A.I. AUTOMATION OPERATOR INTERFACE SNP-0001A01
DOMINO AIRDRYER UPGRADE KIT FOR A300 A200 67683
REXNORD 6F SEAL KIT 0706047
YOKOGAWA DIGITAL OPERATOR INTERFACE KEYPAD JVOP-130P
BENTLY NEVADA 8MM PROXIMITY VIBRATION PROBE 21504-000-040-10-02
MAC SOLENOID VALVE 57D-32-521JJ 250-521JJ
GATES SUPER HC POWERBAND BELT 5V900
SMC 110V SOLENOID VALVE VZ215
SCHNEIDER 208-240V CONTACTOR COIL 2090-71-DA
PARKER SOLENOID VALVE REPAIR KIT PS5387
1 PARKER SOLENOID VALVE REPAIR KIT PS5387
FESTO END CAP BLOCK VTSA-FB
MRC ANGULAR CONTACT BALL BEARING 7306PJDU
MITSUBISHI PROGRAMMABLE CONTROLLER FX0N-24MR-DS
ALLEN-BRADLEY GUARDMASTER SAFETY RELAY 440R-H23180
SCHK PROXIMITY SWITCH 80/SL-M12 0301529
SEW-EURODRIVE 71.75 RATIO 1480 TORQUE 1750 RPM GEAR REDUCER SA47TAM56
EMERSON SEAL-MASTER 30MM G-LINE PILLOW BLOCK BEARING NP-206
CROUSE-HINDS 20A 250V 1HP 3-PIN/SLEEVE PLUG CPP516
ELECTRA GEAR 30:1 RATIO 2.145 INPUT HP EL-B-826-30-L EL8260007.00
KADANT KJ ANTIMONY CARBON SEAL RING 103852720
ACP CARBON MOTOR BRUSH ACP-052A
FAIRCHILD 0-20 PSI PRESSURE REGULATOR 10102
ITT CONOFLOW 4-20mA 3-15 PSI PRESSURE TRANSDUCER GT2108ED
STUFFED CIRCUIT BOARD 200-3120 600-3120
HEIDENHAIN 820MM LINEAR ENCODER 329-990-24 LS-486 D-83301
RADISYS SUPER VGA BOARD EXM-13A 61-0154-22
DOMINO 3 METER MHB CONNECTION CABLE 78972