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。
DEMAG CRANES & COMPONENTS AC MOTOR KBL 71 A 4
TSUBAKIMOTO CHAIN CO. SHOCK RELAY TSB151
FANUC BOARD A16BA
ELAU MOTOR SMP1-45-S1-B0
MITSUBISHI CONTROLLER CARD MC161-1
ALLEN BRADLEY DRIVE 1336VT-B060-EOS-L1 REPAIR SERVICE
INDRAMAT CONTROLLER DDS02.1-A050-D
YASKAWA VARISPEED DRIVE CIMR-SVJ-11AA
SIEMENS SERVO MOTOR 1FK7040-5AK71-1TA3
INDRAMAT SERVO MOTOR 1120-N-030-N2L-130PB0
SIEMENS SERVO MOTOR 1FK7080-5AH71-1AA5
SIEMENS SERVO MOTOR 1FK7040-5AK71-1TG5
FANUC SERVOMOTOR A06B-0501-B756
SIEMENS SERVO MOTOR 1FT6105-8SF71-4EG0
FANUC MONITOR A02B-0200-C061
MITSUBISHI OUTPUT MODULE AY41
MITSUBISHI AS SERVO MOTOR HC-SFS702BG1
ALLEN BRADLEY SERVO MOTOR MPL-A330P-SJ22AA
SIEMENS POWER SUPPLY MODULE 6ES5955-3NF41
CUTLER HAMMER DRIVE SVX040A1-5A4N1
MODICON SERVOMOTOR S76D-EB0-F010
SIEMENS SERVO MOTOR 1FK7063-5AF71-1AA5
ALLEN BRADLEY 2711-T6C10L1 Panelview
FANUC CONTROLLER CARD A20BB
INDRAMAT AC-MAINSPINDLE DRIVE RAC 3.LP0-W1-220
MITSUBISHI AC SERVO MOTOR HC-KFS23BK
SIEMENS CONTROLLER CARD 6ES5470-4UA12
ALLEN BRADLEY DRIVE 1336VT-B050-EOS-S1 REPAIR SERVICE
AMICON TYPACT DRIVE TPY2-154A-2HP
FANUC SERVO AMPLIFIER A06B-6058-H224
HENGSTLER ENCODER 0 525 064
FANUC AC SPINDLE SERVO UNIT A06B-6064-H313#H550
FINCOR DC MOTOR CONTROLLER H
FANUC PC BOARD A16BB
EMERSON CONTROLLER CARD PCM-11
YASKAWA GENERAL PURPOSE DRIVE 506/P5 CIMR-P5M43P7
SIEMENS MOTION CONTROL SOFTWARE 6SW1700-8JD01-0AA0
INDRAMAT SERVO MOTOR MAC112C-0-HD-2-C/130-A-0/S005