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
LLEN BRDLEY DJUSTBLE FREQUENCY C MOTOR DRIVE 1334-CJB SER B
SIEMENS SERVO MOTOR 1FK7080-5H71-1TB3
LLEN BRDLEY DRIVE 1370R-O71-E REPIR SERVICE
SIEMENS MIDIMSTER 6SE3225-2FS45 VECTOR
FNUC BORD 16B
SIEMENS SERVO MOTOR 1FK7101-5F71-1H5
PCIFIC SCIENTIFIC SC
EMERSON DT ENTRY TERMINL T-21
LLEN BRDLEY DRIVE 1336S-B010-N-EN4-L4
YSKW SERVO MOTOR SGMGH-552-YR12
OMRON POWER SUPPLY CQM1-PD026
.C SIMPSON UTO DELT PHSE SHIFTING TRNSFORMER 02240Z030
MERLIN GERIN THREE PHSE CONTCTOR NSJ400 H , ISSUE NO: XR-1874
SIEMENS TRNSFORMER 4T3612-8DD40-0F0
FNUC PLC BSE UNIT 03B-0819-C001
LLEN BRDLEY SERVO DRIVE 8520-3S5-BT-EX4-T1-Y-4-7 SER C
EMERSON SERVODRIVE FX-316
SIEMENS CONTROLLER CRD C
YSKW SERVO MOTOR SGMGH-552-YR12
SIEMENS SERVO MOTOR 1FK7032-5K71-1SB0
LLEN BRDLEY SLC 500 PROCESSOR UNIT 1747-L30 SER
LEESON SPEEDMSTER INTELLIGENT DRIVE 174594
FLUKE 1780 INFOTOUCH DISPLY 1780
LLEN BRDLEY DRIVE 1336S-BRF50-N-EN SER.-D
INDRMT MEMORY CRD FWB-PSM01*-GP*-09V36-MS
LLEN BRDLEY DC INPUT 32 POINT MODULE
SIEMENS SERVOMOTOR 1FT6064-6K71-42
LEROY SOMER DRIVE SE
SIEMENS SERVO MOTOR 1FK7103-5F71-10
LLEN BRDLEY DRIVE 160-B10NPS1
LLEN BRDLEY DRIVE 1351-ROB REPIR SERVICE
ELECTRIC INDUSTRIES REGULTED DC POWER SUPPLY 4005
BOSCH DRIVE VM60-150
GPD515 MGNETEK DRIVE GPD515C-B003
SIEMENS CONTROLLER CRD 6SN1118-0D11-01
EMERSON MOTION CONTROLS SERVO MOTOR BLN-6310B-4
LLEN BRDLEY DRIVE 1336S-BX040--EN REPIR SERVICE
INDRMT SERVO MOTOR MHD090B-035-NP1-UN
GIDDINGS & LEWIS SINK/SOURCE M.1016.8929 R4,
INDRMT PERMNENT MGNET MOTOR MC112D-0-ED-4-CW154LX/S005
LLEN BRDLEY 1774-LB2 PROCESSOR MODULE S IS