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
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ALLEN BRADLEY DRIVE 1336VT-B060-EAS REPAIR SERVICE
FANUC AC SERVO MOTOR A06B-0521-B041
ELECTRO-CRAFT BRU-200 BRUSHLESS SERVO DRIVE DM-30 PART NO:
ALLEN BRADLEY OEM PLATFORM MODULE 1771-OEM1 SER A
ALLEN BRADLEY DRIVE 1336-C040-EAG REPAIR SERVICE
ELAU SERVO MOTOR SM P0-45-S1-B0
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GOULD SERVO POSITIONER 410-2
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LINCOLN ELECTRIC POWER WAVE 450 10608
ALLEN BRADLEY 1771-IA AC INPUT MODULE
ABS SUPER MOTOR 69BMO14CBRY1
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INDRAMAT SERVO CONTROLLER TDM3.W0
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ALLEN BRADLEY 4 SLOT RACK 1746-A4 SER B
SIEMENS PANELFRONT PART
SIEMENS DC MOTOR 1HU3102-0AH01
ALLEN BRADLEY DRIVE 1336-B015-ECE-L3
LEROY SOMER DRIVE SE
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ALLEN BRADLEY POWER FLEX 700S 20D D 034 A 0 EYNANABE
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INDRAMAT CLM DRIVE CLM01.3-XFW
SIEMENS VARIABLE SPEED AC MOTOR DRIVES CQ15005B
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Electric Modicon Quantum Ethernet DIO network module - RJ45 - 10/10 140NOC78000
FANUC CARD A16B
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CUSTOM SERVO MOTOR MPM
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CINNCINNTI MILACRON NEW I/O BUS ADAPTER G REV D