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
SIEMENS SIMATIC S5 6ES5942-7UA12
FANUC POWER SUPPLY A06B-6077-H111
YASKAWA SERVO PACK CACR-IR20SB
ALLEN BRADLEY SMC FLEX 150-F480NCD SER A
INDRAMAT MAGNET MOTOR MKD090B-058-K01-KN
SIEMENS SIMODRIVE D
PANASONIC AC SERVO MOTOR MDM102Q2V
FANUC DRIVE A06B-6089-H301
ALLEN BRADLEY SERVOMOTOR 1326AB-B530E-M2L
STERLING INSTRUMENTS CRANKING SPEED SMR-1000
FANUC BOARD A16B
CONTROLLER CARD F31XI39APMALG2FR00/0
CONTROL TECHNIQUES DRIVE UNI3401
FANUC BOARD A20BB
AEG MODICON POWER SUPPLY P810 AS-P
ALLEN BRADLEY TTL OUTPUT MODULE 1771-OG
FANUC SERVOMOTOR A06B-0356-B755 REPAIR SERVICE
ALLEN BRADLEY DRIVE 1336-B003-ECD-L3-S1
BOSCH SE 200 DIGITAL DRIVE 0608 830 123
INDRAMAT LINE FILTER HZF02.1-W025N
VEXTA GEAR HEAD 5GD5K
INDRAMAT CONTROLLER CARD A09-02
SIEMENS SERVO MOTOR 1FK7080-5AF71-1GH3
ALLEN BRADELY AC SERVO MOTOR H-3016-N-H00AA
ALLEN BRADLEY POINT MODULE B8
INDRAMAT DRIVE DKS01.1-W050A
ALLEN BRADLEY SPINDLE DRIVE 8510A-A22-A2
CUTLER HAMMER PANELMATE 3985ST PMPP 3000
WER AC MOTOR P25G7079B
HUBSTACK 10 BASE THUB WITH LANDVIEW SEHI-24
ACOPOS PLUG IN ENDAT ENCODER INTERFACE MODULE 8AC120.60-1
ALLEN BRADLEY POWERFLEX 40 DRIVE 22B-D012N104 SER A
SERVCOS INTERFACE CARD 1C-SE-EN1-EN2-NNN-NN-S-NN-FW
ALLEN BRADLEY SLC500 DC SOURCE OUTPUT MODULE 1746-OB16 SER B
ALLEN BRADLEY DRIVE 1336-B015-EJE-L3
INDRAMAT 3-PHASE INDUCTION MOTOR 2AD132C-B050A2-BS03-B2N2
LINCOLN ELECTRIC POWER WAVE 450 10608
YASKAWA SERVO MOTOR SGMS-50A6AB
SIEMENS SERVO MOTOR 1FK7083-5AF71-1TH0
SIEMENS SERVO MOTOR 1FK7080-5AH71-1AB3
YASKAWA ELECTRIC AC SERVO MOTOR USACEM-03A A2K