代PLC不仅有逻辑运算、计时、计数、顺序控制等功能，还具有数字和模拟量的输入输出、功率驱动、通信、人机对话、自检、记录显示等功能。既可控制一台生产机械、一条生产线，又可控制一个生产过程
目前，大多数PLC仍采用继电控制形式的“梯形图编程方式”。既继承了传统控制线路的清晰直观，又考虑到大多数工厂企业电气技术人员的读图习惯及编程水平，所以非常容易接受和掌握。梯形图语言的编程元件的符号和表达方式与继电器控制电路原理图相当接近。通过阅读PLC的用户手册或短期培训，电气技术人员和技术工很快就能学会用梯形图编制控制程序。同时还提供了功能图、语句表等编程语言
HAROWE ENCODER 11BRCX-300-J10B
FANUC SERVO MOTOR A06B-0213-B200#0100
FANUC CONTROLLER CARD A16BB
MITSUBISHI SERVOMOTOR HC-SFS202K
SIEMENS SERVO MOTOR 1FK7063-5AF71-1EB3
MAGNETIC DC MOTOR BR 60 S 20/17
ALLEN BRADLEY SERVO DRIVE 8520-3S5A-BAT-EX4-Y-5-7 SER C
SIEMENS SERVO MOTOR 1FK7060-5AH71-1EH3
ALLEN BRADLEY SPINDLE DRIVE 8510A-A22-A2
MOTOROLA SITE CONTROLLER CARD 84D82277T02
MODICON CONTROLLER
HUB CITY GEARBOX
FANUC SPINDLE SERVO DRIVE A06B-6041-H112
SIEMENS SERVO MOTOR 1FK7103-5AF71-1TH5
ALLEN BRADLEY DRIVE 1336-C025-EAF-L2
SIEMENS SERVO MOTOR 1FK7061-7AF71-1EG0
BALDOR BRUSHLESS SERVO MOTOR BSM63A-250AA
MITSUBISHI DRIVE FR-E540-0.4K-NA
LENZE DRIVE PLC EPLXX
ALLEN BRADLEY DRIVE 1336VT-B050-EAS-L1 REPAIR SERVICE
CONTROL TECHNIQUES DRIVE CDE150-R
GE FANUC AC SERVO MOTOR A06B-0142-B175
SMART PUMP VACUUM MANAGEMENT SYSTEM VMS
RELIANCE ELECTRIC MOTOR 1326AB-B430E-21
MCG SERVO MOTOR ABB4004-Q1
SIMENS MIDIMASTER VECTOR DRIVE 6SE3224-2DJ50
LENZE 8200 VECTOR DRIVE E82EV152_4C200
SIEMENS SERVO MOTOR 1FT6044-1AF71-3AH1
KOLLMORGEN BRUSHLESS P.M. SERVO MOTOR M-805-B-A1
INDRAMAT CONTROLLER CARD DCF01-12
ELMO SERVOMOTOR PSA P-PMB-4653
FANUC SERVO MOTOR A06B-0505-B001#7000
CINCINNATI MILACRON LOGIC BOARD G
BALDOR AC SERVO DRIVE DBSCAAA
FANUC AV501 PULSECOSER
SIEMENS SERVO MOTOR 1FT6044-1AF71-2EH1
SIEMENS BRUSHLESS SERVO MOTOR 1FT6062-6AC79-3AL9-Z
HEIDENHAIN ENCODER ERN 1387 2048 62S14-70
ALLEN BRADLEY SERVO MOTOR YH00AA
POWERTEC BRUSHLESS DC DRIVE C0151AR4CH114
HONEYWELL EXPANSION MODULE FF-SRE3081E