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
PACIFIC SCIENTIFIC MOTOR SRBC-CV
ALLEN BRADLEY 1774-TB2 PROGRAM PANEL INTERFACE MODULE
OMRON CONTROLLER LINK UNIT CQM1H-CLK21
ABB SERVOMOTOR 3HAC
SIEMENS SINAMICS S120 COMPACT FLASH CARD 6SL3054-0TA01-1BA0
FANUC POWER SUPPLY MODULE A06B-6077-H111
SIEMENS TEACH PENDANT 6FX2007-1AE03
BAUMULLER SERVO MOTOR DSG 56-M
AMICON TYPACT DRIVE TPY3A-1122B-60HP
SIMENS BRAKE GM
FANUC DRIVE A02B-0118-B002
INDRAMAT POWER SUPPLY HDS04.2-W200N-HT25-01-FW
GUSHER 3 PHASE MOTOR MSCFJ
MITSUBISHI AC SERVO MOTOR HC-SFS202B
ACOPOS PLUG-IN MODULE 8AC110.60-2
SIEMENS SERVO MOTOR 1FK7003-5AF71-1FG0
ALLEN BRADLEY DRIVE 1370AR-BOB73-E REPAIR SERVICE
SIEMENS ANALOG INPUT
ALLEN BRADLEY AC SERVOMOTOR 1326AS-B690E-21 , PART NO: SERIES A
FANUC SPINDLE AMPLIFIER MODULE A06B-6088-H215#H500
INDRAMAT AC MAINSPINDLE DRIVE KDA 3.D00-U1
ALLEN BRADLEY 2711E-T10C6 Panelview
ASSOCIATED RESEARCH, INC. TESTER 4040AT
ALLEN BRADLEY AC SERVO MOTOR 1326AB-B420E-21
ISOLATED ANALOG INPUT MODULE *AS IT IS* 1771-IL C
ALLEN BRADLEY DC SERVO CONTROLLER 1388B-AV 40
FANUC AC SERVO MOTOR A06B-0114-B275#0008
ISOLTRA TRANSFORMER,EJ
SIEMENS SERVO MOTOR 1FK7060-5AH71-1EH2
LTN ENCODER G58SSCDB
EAGLE PICHER BATTERY CF-6V7
SIEMENS COUPLING MODULE 6FX1122-1AC02
SIEMENS SERVO MOTOR 1FK7060-5AH71-1EH3
ALLEN BRADLEY PANELVIEW 2711-B5A2
INDRAMAT CONTROLLER UNIT DDS02.1-A050-D
SIEMENS SERVOMOTOR 1FT6084-8AF71-1AA2
KTRON SMART CONTROL MODULE SCM
INDRAMAT SERVO MOTOR MHD112B-024-PP0-LN
AEG MODICON 24 VDC OUTPUT B824
SIEMENS SERVO MOTOR 1FT6102-1AC71-4AG1
INDRAMAT SERVO DRIVE HDS03.2-W075N-HS96-01-FW