PLC基本组成包括中央处理器(CPU)、存储器、输入/输出接口(缩写为I/O，包括输入接口、输出接口、外部设备接口、扩展接口等)、外部设备编程器及电源模块组成，见图1。PLC内部各组成单元之间通过电源总线、控制总线、地址总线和数据总线连接，外部则根据实际控制对象配置相应设备与控制装置构成PLC控制系统。
Power Source Module Diode PT1018 8C09
SMC, CD85N20-80C-B, Pneumatic Air Cylinder
Balluff, BES SA3-E5-C-S49, Proximity Sensor Switch 10-30VDC
Numatics, 34HLS4410, Hand Lever Valve
Amphenol, MS3106B-24-28P, MS3106A24-28P, Plug Circular Connector #16
SANOH CA-NTSC TOUCH SCREEN
GE General Electric 5K38RN44A A-C Motor 1hp 3PH 3450rpm marathon USA made
Hayward YC10075T 3/4" .75" check valve pvc threaded viton o-ring one way YC
Banner, SM312LVQDP, 28155, Mini-Beam Photoelectric Sensor Used
PARVEX RS220KR1049-Z (CUT CABLE) MOTOR
SMC, KQ2P-06, Tube Fitting KQ2 Connector Plug Push to fit Pack of 10
Efector IFM E21003 OJ rail mount sensor lens mounting
Opto 22, G4 DA3, Analog I/O Module 4-20MA Output
Mitsubishi, HC-KFS13D, AC Servo Motor 100W
Turck, BI5-M18T-RZ3X60MM, Inductive Proximity Sensor Switch
TSUBAKI SW35E30LF MOTOR
NTE, R46-5D3-12, Power Relay SPDT 5A 12VDC 12v
KELE DC power supply DCP-1.5-W wentech 1.5w 24v 24vdc
Rocon WCVASSY Air Lockout Kit
Star AA10M Linear Bearing 794 D7080 Block
Yamatake, FEW-K8A5, FEW-K8A5HB, Photoelectric Control
Nordson Pressure Gauge 1.95" U-Clamp Dry 1/8" NPT Brass CBM 0-100PSI
Ranger ii POD Isolated K type Thermocouple
Allen Bradley, 42SRP-6006-QD, Photoswitch Diffuse Control QD
Gates QD Vulco Mount Bushing SH 1" bore
IFM, IIA2010-FRKG/US-100-IRF, Efector Proximity Switch Sensor
Davis Instruments, 7916, AC Power Adapter 9VDC 9 Volt 200ma
Siemens, 6EPBA00, SITOP Power 30 Power Supply
SANYO DENKI 103HXS42 STEPPING MOTOR
