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。
FANUC CARD A16B
ALLEN BRADLEY AC SERVO MOTOR MPL-B520K-MJ22AA
FANUC VELOCITY CONTROL UNIT A06B-6050-H102
DAIKEN INVERTER AKZ328
FANUC AC SERVO UNIT A06B-6089-H209
SIEMENS SERVO MOTOR 1FK7101-5AF71-1AB3
SIEMENS MOTION CONNECT SIGNAL CABLE EXTENTION (3M) 6FX8002-2SL10-1AD0
DANFOSS VLT AUTOMATION DRIVE 131B0424
FANUC AC SPINDLE SERVOMOTOR A06B-0853-B400
ALLEN BRADLEY AC SERVO MOTOR F-4030-Q-H00AA
DC LINK CONTROLLER FOR KRC 32 NM100ABN
ALLEN BRADLEY DRIVE 1336-C025-EAF-S1
HITACHI CONTROLLER CARD BEH
SIEMENS SERVO MOTOR 1FK7101-5AF71-1GH3
ALLEN BRADLEY BULLETIN 1397 1397-A003R-HAB
SIEMENS SERVO MOTOR 1FT6084-1AH71-1AH1
ALLEN BRADLEY DC OUTPUT 32 POINTS MODULE 1756-OA32 SER A, PART NO: A01
ALPHA GEAR BOX SP140-MF1-4-2K1-2S
MITSUBISHI DRIVE FR-A540E-5.5K-NA
BALDOR SERVOMOTOR BSM 6RB5
SIEMENS SINUMERIK 840C/840CE 6FC5103-0AB03-0AA3
SIEMENS CONTROL PANEL 6SL3255-0AA0-4BA1
FANUC OPERATOR'S PANEL A04B-0067-C221
FANUC SERVOMOTOR A06B-0513-B202 REPAIR SERVICE
ELAU MOTOR SMP1-45-S1-B0
REXROTH INDRAMAT ECO DRIVE DKC02.FW
ALLEN BRADLEY DRIVE 1370AR-AOA75-E REPAIR SERVICE
DC TACHOMETER 601A100-2
MITSUBISHI PLC INPUT UNIT A1SX42-S2
ALLEN BRADELY KINETIX 6000 SERVO DRIVE 2094-AMP5-S
SIEMENS SERVO DRIVE 6SE7021-3TP50
INDRAMAT PERMANENT MAGNET MOTOR MAC112D-O-ED-4-C/130-A-0/WI520LX/S005
ALLEN BRADLEY POWERFLEX 70 20AE6P1A0AYNNNNN
SIEMENS SERVO MOTOR 1FK7083-5AF71-1AB3
YASKAWA SERVO CONTROLLER CACR-SR03SZ1SSY223
SIEMENS SERVO MOTOR 1FK7083-5AH71-1SA0
Siemens 6SN1123-1AB00-0AA0 Power Module