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。
ALLEN BRADLEY AC DRIVE 22A-D1P4H204
SIEMENS SERVO MOTOR 1FK7060-5AF71-1SG0
OMRON INVERTER+ CARD 3G3MV-A2001, 3G3MV-PDRT1-SINV
YASKAWA ELECTRIC SERVO DRIVE CACR-IR 15SFB P00 B11
MCG SERVO MOTOR 2282-ME4890
ABB BOARD DSQC 324
FANUC SERVOMOTOR A06B-0505-B002#7008
SIEMENS SERVO MOTOR 1FK7080-5AF71-1SA0
FANUC SERVO MOTOR A06B-0521-B001
GREAT M&Y INDUSTRIAL CONTROL POWER TRANSFORMER MP-MT , FORM- 5000
INDRAMAT CONTROLLER CARD B01-05
FANUC CONTROLLER CARD A20BB
SIEMENS CIRCUIT BOARD 65C6170-0FC00
STEALTH GEARBOX PX
ELWOOD SERVO MOTOR 1326AS-B310H-21
SIEMENS SERVOMOTOR POWER CABLE 6FX2002-5CA11-1BA0
SQUARE D MOLDED CASE CIRCUIT BREAKER FA36100
SIEMENS SERVO MOTOR 1FK7100-5AF71-1GA0
FANUC POWER MATE A02B-0118-B003
ABB UNIT 3HAC5393-2 DSQC508
FANUC SERVO AMPLIFIER MODULE A06B-6079-H106
ALLEN-BRADLEY AC POWER SUPPLY 1771-P7 SER.D
GE FANUC OUTPUT MODULE IC693ALG390C
TOSHIBA TRANSISTOR INVERTER VT130G
YASKAWA SERVOPACK CACR-IR 101010FC
SIEMENS SERVO MOTOR 1FK7080-5AH71-1AB3
ALLEN BRADLEY DRIVE 1336-B025-EJF-L1
SIEMENS SERVOMOTOR 1FT6084-8AC71-1FA0
FANUC CONTROLLER CARD A16BA
SIEMENS SERVOMOTOR 1FK7042-5AF21-1UA0
TELEMECANIQUE SQUARE D LC1 D 1156
ABB DISPLAY MODULE CDP 311
GETTYS PERMANENT MAGNET SERVO MOTOR
CONTROL TECHNIQUES COMMANDER CDE DRIVE CDE075-R
ALLEN BRADLEY PANEL VIEW **AS IS** 2711-B5A2
YASKAWA ELECTRIC SERVO DRIVE CACR-IR 050505FB
Allen Bradley 1771-ODD Isolated Output Module