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。
INDRAMAT CONTROLLER CARD B-2
ALLEN BRADLEY DRIVE 1336-C040-EJG-S1 REPAIR SERVICE
INDRAMAT CONTROLLER MTC-R02.1-M1-A2-A2-NN-FW
RELIANCE ELECTRIC V*S POWER MODULE E 59092
CINCINNATI MILACRON DC DRIVE 6SC 6101-6A-Z
BOSCH SERVO DRIVE ASM 25-TD
SIEMENS SERVO MOTOR 1FK7080-5AH71-1AA5
ALLEN BRADLEY DIGITAL AC SPINDLE DRIVE 8510 8510A-A11-B2
BALDOR SERVO MOTOR BSM 6RB5-A7-9
SIEMENS SERVO MOTOR 1FT6086-1AH71-1EH1
SIEMENS SERVO MOTOR 1FK7022-5AK71-1PG2
ALLEN BRADLEY DRIVE 1336VT-B040-EAR-S1
HEIDENHAIN ENCODER ROD 426 500 03S12-013
ELAU CONTROLLER BE-7/10
ALLEN BRADLEY DRIVE 1336-B015-AA-EN4
SIEMENS MS140 POWER SUPPLY MODULE 6FX1113-2AA01
ALLEN BRADLEY ULTRA3000 SERIES DRIVE 2098-DSD-020-SE PART NO: SER B
SIEMENS SERVO MOTOR 1FT5064-1AF71-4AG0
SIEMENS SERVO MOTOR 1FK7083-5AF71-1AH5
YASKAWA AC SERVO MOTOR SGMSH-40DCA6C
LENZE DRIVE UNIT EVS9325-ES
BOSCH MODULE CIRCUIT BOARD
SIEMENS SPINDLE MOTOR 1PH7137-2ND02-0CA0
CINCINNATIMILACRON ESD SERVICE PART A
YASKAWA ELECTRIC SERVO DRIVE CACR-IR30SFB P00 B11
SIEMENS 2 AXIS SIMODRIVE 6SN1124-1AB00-0CA1
HARLAND SIMON ANALOG INPUT CARD H4890P1210
SIEMENS SIMATIC S5 9 SLOT EXPANSION RACK 6ES5701-1LA12
SIEMENS SERVO MOTOR 1FK7063-5AH71-1SH2
SIEMENS SERVO MOTOR 1FK7042-5AF71-1SA0
ALLEN BRADLEY SERVO MOTOR (NO ENCODER) 1326AB-32E-11
SIEMENS MEMORY MODULE 6FR1826-0AB10-2B
INDRAMAT SERVO DRIVE HDS03.2-W100N-HS45-01-FW
SIEMENS SERVO MOTOR 1FK7063-5AF71-1GA0
ELMO SERVOMOTOR PSA P-LSS-4732
FANUC DRIVE *AS IT IS* A06B-6066-H291
ALLEN BRADLEY DRIVE 1336VT-B050-EOS-FA REPAIR SERVICE
SIEMENS SERVO MOTOR 1FK7032-5AK71-1GB2