输入输出设备：它用以接收信号或输出信号，便于与PLC进行人机对话。输入的有条码读入器，输入模拟量等。输出的有打印机、编程器、监控器虽也可对PLC输入信息，从PLC输出信息，但输入输出设备实现人机对话更方便，可在现场条件下实现，并便于使用。随着技术进步，这种设备将更加丰富。
SIEMENS SERVO MOTOR 1FK7063-5AH71-1TH3-Z
EMERON MOTION CONTROL FX-208
INDRAMAT CONTROLLER CARD B01-11
SIEMENS SERVO MOTOR 1FK7003-5AF71-1FG0
KURODA ENCODER PC-1024Z-WFYB
GIDDINGS & LEWIS ENCODER OUTPUT MODULE
MCBROM ELCTRIC MAGNET SERVO MOTOR M235-H60A-90M
OMRON INVERTER+ CARD 3G3MV-A2001, 3G3MV-PDRT1-SINV
MITSUBISHI AC SERVO MOTOR HC-SFS202B
SIEMENS SITOP POWER SUPPLY 6EP1931-2FC01
ALLEN BRADLEY BULLETIN 1305 DYNAMIC BRAKE 1305-KBA03
CUTLER HAMMER DRIVE SVX015A1-5A4N1
SIEMENS SERVO MOTOR 1FK7083-5AF71-1GA2
YASKAWA XTRADRIVE XD-08-MNBF
LAFERT SERVOMOTOR AMH132MZA4
FANUC SERVO DC MOTOR
ALLEN BRADELY VERSA VIEW 1700P 6181P-17NP-XPH
MITSUBISHI BATTERY MODULE MC062
ALLEN BRADLEY CONSTANT TORQUE AC DRIVE 1336-C050-EOG, 1336-C050-E0G
MEAN WELL SWITCHING REGULATOR DRT
FANUC SPINDLE FAN A90LR
SIEMENS SPINDLE MOTOR 1PH7133-2NZ02-0LA0
INDRAMANT SERVO DRIVE HDS02.1-W040N-HS12-01-FW
FANUC AC SERVO MOTOR A06B-0513-B001
INDRAMAT SERVOMOTOR MAC093B-0-JS-4-C/110-A-0/WI522LV
LENZE 8200 VECTOR DRIVE E82EV402-4C200
FESTO CONTROLLER 1FB16-03
ALLEN BRADLEY PROGRAMMING MODULE 1201-HJP
ALLEN BRADLEY DRIVE 1336-B040-EAG-L1
BENCHTOP DRIVE TESTER M
YASKAWA SERVO MOTOR T030-KU11
SIEMENS SERVO MOTOR 1FK7083-5AF71-1EB3
SIEMENS SERVOMOTOR 1FK7063-2AF71-1QH0
ALLEN BRADLEY BULLETIN 1392 HIGH PERFORMANCE AC DRIVE 1392-B040-RF-MC-A-D1-F1-F4
RELIANCE ELECTRIC SERVO MOTOR M-51017
ALLEN BRADLEY DRIVE 1370AR-BOA73-E REPAIR SERVICE
DC TACHOMETER