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
OMRON TEMPERATURE CONTROLLER E5C2-R20J-10
MOTOROLA INBOUND RECOVERY CONTROLLER CARD 84E84537L03
ALLEN BRADLEY POWER SUPPLY 1606-XLDNET4
SIEMENS SERVO DRIVE 6FC5247-0AA00-0AA3
ALLEN BRADLEY DRIVE 1336-B040-EJG-L3
KEP DISPLAY S124X1
RELIANCE ELECTRIC INDUCTION SERVO MODULE UAZ3022
SIEMENS SERVO MOTOR 1FT6064-1AF71-1AG1
SIEMENS SERVO MOTOR 1FK7083-5AH71-1TG5
SIEMENS SERVO MOTOR 1FK7103-5AF71-1SA0
SIEMENS SERVO MOTOR 1FK7101-5AF71-1EA5
INDRAMAT MEMORY CARD (SD) FWA-INDRV-MPH-04VRS-D5
ALLEN BRADLEY 4 AXIS SLIM POWER RAIL 2094-PRS4 SER.A
FANUC AC SERVO MOTOR A06B-0514-B604 #7208
SIEMENS SERVO MOTOR 1FK7103-5AF71-1TB0
ALLEN BRADLEY PC BOARD
MITSUBISHI BATTERY MODULE MC062
SIEMENS SERVO MOTOR 1FK7060-5AH71-1AH5
SIEMENS RS232/PPI MULTI MASTER CABLE 6ES7901-3CB30-0XA0
ALLEN BRADLEY DRIVE 1391-DES45-DI-AQB
EMERSON SERVO DRIVE EN-208
ALLEN BRADLEY HIGH RESOLUTION ANALOG MODULE 1771-NIS SER A
SIEMENS SERVO MOTOR 1FK7060-5AF71-1SH3
KROMAS AUTO CONTROLLED SERVO TRANSFORMATOR VRG-10
ALLEN BRADLEY ISOLATED OUTPUT MODULE 1771-OD C
WESTINGHOUSE CIRCUIT BREAKER MCP23480S
SIEMENS SERVO MOTOR 1FK7060-5AH71-1GB5
SIEMENS SINUMERIK 820 M PANELVIEW 6FC3531-0AB-Z
FANUC PLC BASE UNIT A03B-0807-C001
CONTROLLER CARD CMK-C2X
MITSUBISHI CONTROLLER CARD MC161-1
ADAPTIVE CONTROL RELAY ASSAY CARD BM
CONTROLLER CARD *AS IT IS* 191839
OKUMA OPUS MAIN BOARD EC
SIEMENS SERVO MOTOR 1FK7040-5AK71-1GG3
ELMO MOTION CONTROLLER CLAC
ALLEN BRADLEY PLC PROCESSOR 1772-LSP
FANUC DRIVE A06B-6089-H207
FANUC AC SERVO MOTOR A06B-0506-B001
INDRAMAT SERVO MOTORMHD112B-048-PG0-AN
AC TECH INTELLIGENT DRIVE M3510C