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。
INDRAMAT CONTROLLER CARD AB4-00
CONTROL TECHNIQUES DRIVE MD (PART NO: )
EMERSON DELTAV MODULE KJ3204X1-BA1
SIEMENS SERVO MOTOR 1FK7063-5AH71-1GB5
YASKAWA DRIVE CIMR-5.5G2-E-10
INDRAMAT ECO DRIVE DKC06.FW
FANUC AC SERVO MOTOR A06B-0152-B075
BAUMULLER SERVO MOTOR V00KFF-132-L46
SIEMENS SERVO MOTOR 1FK7103-5AF71-1AG2
FANUC SERVOMOTOR A06B-0348-B356 REPAIR SERVICE
FANUC AMPLIFIER A06B-6066-H013
CONTROLER CARD Z
IDEC 240W OUTPUT POWER SUPPLY PS5R-G24
ALLEN BRADLEY SLC500 DC SINK OUTPUT MODULE 1746-OV16 SER B
BALDOR SERVOMOTOR BSM100B-3150BA
ALLEN BRADLEY DRIVE 1336VT-B050-EAS-L1 REPAIR SERVICE
SIEMENS SERVOMOTOR 1FT5104-0AA01-2-Z
EFECTOR MODULE IN3502
TAMAGAWA TS2630N91E78 RESOLVER
INDRAMAT CONTROLLER CARD A-3
ABB RECTIFIER BOARD DSQC 249B
TRANSFORMER,SPS
FANUC AC SERVO MOTOR A06B-0123-B575
MITSUBISHI SPINDLE DRIVE UNIT MDSASPA300
ABB BOARD DSQC 256A
FANUC PLC MODULE A03B-0807-C051
MITSUBISHI SERVOMOTOR HC-KFS23B
OMRON AC R88D-RB10 SERVO DRIVE
SIEMENS PERMANENT MAGNET MOTOR 1FT5062-0AC01-ZG42
SIEMENS SERVO MOTOR 1FK7083-5AF71-1EG2
SIEMENS POWER BOARD 6SC6108-0SE01
SIEMENS SERVO MOTOR 1FT6084-1AF71-2AH1
HEIDENHAIN ENCODER ROD 431.
KTRON SMART CONTROL MODULE SCM
KOLLMORGEN SERVO DRIVE BDS5AC-2-020
MITSUBISHI SERVO MOTOR HA-SA-22-Z
SIEMENS BRUSHLESS SERVO MOTOR 1FT6105-8AB71-1AA0