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。
AUTOSET WINTRISS LOAD ANALYZER
FANUC AC SERVO MOTOR A06B-0319-B072#7076
SIEMENS SINUMERIK 820 M INTERFACE MODULE 6FX1121-4BA02
ALLEN BRADLEY DRIVE 1336-B020-EJE-S1
FANUC SERVO AMPLIFIER A06B-6058-H101
FANUC SERVO AMPLIFIER A06B-6066-H011
PACIFIC SCIENTIC BRUSHLESS SERVOMOTOR F43GENA-R2-NS-NV-00
SIEMENS SERVO MOTOR 1FK7103-5AF71-1SH2
MAPLE SYSTEM BACKLIT LCD OIT3165-A00
SIEMENS SIMODRIVE D
BALDOR SERVOMOTOR EM7080T REPAIR SERVICE
SIEMENS SIMODRIVE 1P 6SN1123-1AA01-0FA1
YASKAWA ELECTRIC MOTOMAN XRC SERVOPAK CONTROLLER EXTENSION JARCR-XCU03
PARKER SERVO DRIVE GV-V6E
HONEYWELL SHADOW VI WINTRISS LIGHT CURTAIN TRANSMITTER
EXLAR GS SERIES LINEAR ACTUATOR GSFM-EM1-M6
OMRON POWER SUPPLY UNIT CQM1-PA206
SIEMENS SERVO MOTOR 1FK7080-5AH71-1AH0
HILSCHER CONTROLLER CARD LK KA-PB01
PARKER SERVO DRIVE ZXF600-DRIVE -240V
FANUC PULSECODER AT011
REXROTH IKG0041 CABLE 35M
FANUC AC SERVO MOTOR A06B-0502-B074#7008
TOSHIBA TRANSISTOR INVERTER VFSPL-WN(1)
ABB ROBITICS SERVO MOTOR PS P-LSS-4349 , ART NO: 3HAC
FANUC DRIVE A06B-6089-H208
SIEMENS SERVO MOTOR 1FT6064-1AH71-1AH1
FANUC CONTROLLER CARD A20BE
ABB TEACH PENDANT 3HAB2136-1
SIEMENS SERVO MOTOR 1FK7101-5AF71-1GB2
YASKAWA SERVO DRIVE SMC 2000-1
CINCINNATI MILACRON ACRAMATIC 850SX CONTROLLER CARD 3 542 1015A REV. J
ALLEN BRADLEY POWER MODULE SA3100-B020-AA-LSR
LENZE/ AC TECHNOLOGY DRIVE Q12030B REPAIR SERVICE
CYCLETROL 150 DRIVE 176B6005
ALLEN BRADLEY POWERFLEX 700 SERIES B 20B D 3P4 A 0 AYNAND0
CTC PARKER P91-5JB-1A0H-4A2