由于PLC采用了软件来取代继电器控制系统中大量的中间继电器、时间继电器、计数器等器件，控制柜的设计安装接线工作量大为减少。同时，PLC的用户程序可以在实验室模拟调试，更减少了现场的调试工作量。并且，由于PLC的低故障率及很强的监视功能，模块化等等，使维修也极为方便。
ALLEN BRADLEY DRIVE 1336VT-B050-EOS-S1 REPAIR SERVICE
ABB CIRCUIT BOARD DSQC 302
INDRAMAT AC SPINDLE DRIVE RAC3.L00-W1-220
ALLEN BRADLEY DRIVE 1370AR-BOB72-E REPAIR SERVICE
TOSHIBA SERVO DRIVE UNIT VT150M1
WESTINGHOUSE CIRCUIT BREAKER FD3050
SIEMENS SERVO MOTOR 1FK7040-5AK71-1SG5
SIEMENS SERVO MOTOR 1FK7042-5AF71-1TA5
ALLEN BRADLEY SERVO MOTOR 1326AB-A2E-11-A4
MAPLE SYSTEM BACKLIT LCD OIT3165-A00
SIEMENS RAM 6ES5377-0BA51
FANUC BOARD A16BA
MITSUBISHI RACK BASE 8 SLOT A1S38B
ALLEN BRADLEY AC SERVO MOTOR 1326AB-B530E-21-KS
PARKER SERVO MOTOR MPC
INDRAMAT DIGITAL CONTROLLER DDS02.1-W150-D
DC BRUSHLESS SERVO MOTOR MTS30U4-42
SIEMENS SAFETY SWITCHING UNIT 6FM8090-0AS01
ALLEN BRADLEY OPERATOR INTERFACE 2706-A41J
ALLEN BRADLEY DRIVE 1336-C040-EAG-L3 REPAIR SERVICE
SIEMENS CONDUCTER 3TH4355-0B
KUKA CONTROL CARD FE
INDUSTRIAL DRIVES DIVISION DC SERVO MOTOR TTD
REXROTH INDRAMAT PERMANENT MAGNET MOTOR MAC090C-0-GD-4-C/110-A-1/WI520LV/S001
ALLEN BRADLEY DRIVE 1336-C025-EOF-S1
ALLEN BRADLEY DRIVE 1336, GT-BB25,
SIEMENS SERVO MOTOR 1FK7103-5AF71-1GA0
ALLEN BRADLEY SLC 500 PROCESSOR UNIT 1746-0A8
COMPUMOTOR SERVO DRIVE GV-U3E
SIEMENS SIMODRIVE LT MODULE 1NT.300A 1P 6SN1123-1AA00-0JA1
YASKAWA ELECTRIC SERVO DRIVE CACR-IR 020202FB
SIEMENS SERVO MOTOR 1FK7040-5AK71-1AB5
INDRAMAT AC SERVO CONTROLLER KDS1.W1-220
FANUC CONTROLLER CARD A16B
SANYO DENKI SERVO MOTOR P50B07020DXVT2
SIEMENS SIMODRIVE 6SN1123-1AA00-0HA1
SIEMENS SERVOMOTOR 1FT6086-1AH71-4EH1
AMICON TYPACT DRIVE TPY3A-1122B-60HP