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
ALLEN BRADLEY DRIVE 1336S-B010-AN-EN5-GM1-L6 SER D
SIEMENS SERVO MOTOR 1FK7060-5AH71-1AB0
SIEMENS SERVO MOTOR 1FK7063-5AH71-1GG5
INDRAMAT SPINDLE MOTOR 2AD132D-B350B1-BD03-B2N1
CINNCINNTI MILACRON NEW I/O BUS ADAPTERG REV D
ALLEN BRADLEY DRIVE 1336VT-B060-EAS REPAIR SERVICE
SIEMENS CONTROLLER CARD 6DD1642-0BC0 EA12
YASKAWA ELECTRIC SERVOMOTOR SGMG-75V2ABC
ALLEN BRADELY VERSA VIEW 1700P 6181P-17NP-XPH
INDRAMAT CONTROLLER MODULE PPC-R02.2N-N-NN-NN-NN-FW
ALLEN BRADLEY DRIVE 1336VT-B060-EOS-L1 REPAIR SERVICE
AC TECH VFD2 M15150B
FANUC SERVOMOTOR A06B-0356-B755 REPAIR SERVICE
ALLEN BRADLEY POWERFLEX 22A-D2P3N104
BALDOR DC SERVO MOTOR MTE-4525-CNBCE
FANUC SPINDLE AMPLIFIER A06B-6102-H215#H520
INDRAMAT SERVO MOTOR MAC 090A-0-R0-4-C/110-A-1/W152
ALLEN BRADLEY SMC FLEX 150-F480NCD SER A
SIEMENS SERVO MOTOR 1FK7043-7AH71-1EG0
CINCINNATI MILACRON MEMORY CARDG
SQUARE D MOLDED CASE CIRCUIT BREAKER FAL-36070
ALLEN BRADLEY AC SERVO MOTOR 1326AB-B730E-S2L
FANUC INPUT MODULE A03B-0801-C129
PARKER COMPUMOTOR SERVO DRIVE GV-U6E
SQUARE D WELD CONTROL MODULE
SUPERCOOL SERVO DRIVE DAAR
ALLEN BRADLEY DRIVE 1336VT-B015-EAN-S1
FANUC 2 SLOT BACKPLANE A05B-2400-C060
ALLEN BRADLEY ANALOG COMBINATION I/O MODULE 1746-NIO4I SER A
PANASONIC SERVO MOTOR MHMD042P1S
KOLLMORGEN POWER SUPPLY PSR4/5A-112
SIEMENS SERVO MOTOR 1FT7084-5WH71-1NH1
ENFA PRESSURE GAGE 228-2
BALDOR SERVO DRIVE FPH4A05TR-DD23
VELLINGE ELECTRONICS CARD 3HAA0001-ADX/I
FANUC SERVO DRIVE A06B-6124-H209
SIEMENS CONTROLLER CARD,6FC5110-0BB04-0AA1
SIEMENS SERVO MOTOR 1FT6064-1AF71-2EH1
SIEMENS INPUT CARD 6ESGD00-0ABO
ACCU DRIVE E090C-025-MCKC
OMRON OUTPUT UNIT C200H-0C222