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。
GOULD CONTROLLER CARD REV F
SIEMENS SERVO MOTOR 1FK7080-5AF71-1AA0
SIEMENS SINUMERIK INTERFACE BOARD 6FX1121-4BA02
POWERTEC BRUSHLESS DRIVE C0031.N4CH025
FANUC SERVO MOTOR A06B-0314-B5 #7076
Fanuc A61L CRT
SIEMENS SERVO MOTOR 1FK7080-5AH71-1GH3
SIEMENS SERVO MOTOR 1FK7103-5AF71-1EH2
KEB F4 DRIVE 09.F4.C3D.4
SIEMENS SERVO MOTOR 1FK7060-5AH71-1SB2
SIEMENS SIMATIC PANEL PC 6AV7615-0AB12-0CJ0 , S T-S
ALLEN BRADLEY DRIVE 1336VT-B015-EON
INDUSTRIAL DC MOTOR TTEB-38
GOMI ELECTRIC TRANSFORMER E
SIEMENS SERVO MOTOR 1FK7101-5AF71-1EA0
INDRAMAT SERVO MOTOR MAC90C-0-GD-1-B/110-A-0/J625/S01
SIEMENS SERVO MOTOR 1FK7063-5AH71-1TH5
SIEMENS SIMATIC TD 17 6AV3 017-1NE30-0AX0
ALLEN BRADLEY AC SERVO CONTROLLER 1391B-AA45
STOBER ANTRIEBSTECHNIK GEARBOX P301AGN0050M
ALLEN BRADLEY SLC500 TRIAC OUTPUT MODULE 1746-OA16 SER C
SIEMENS SERVOMOTOR 1FT5072-0AF71-1-Z
MARCUS TRANSFORMER MO1K5P
NORGREN SMART PUMP VACUUM MANAGEMENT SYSTEM VCAW
SIEMENS SERVOMOTOR 1FT5102-0AA01-2-Z
SUMTAK OPTCODER LE
MISUBISHI SERVO DRIVE MDS-B-V1-90 REPAIR SERVICE
SCHNEIDER POWER SUPPLY ABL7 RP2410
FANUC BOARD A16BC
SAFTRONICS ADJUSTABLE FREQUENCY AC DRIVE CIMR-G3U22O2
GENERAL ELECTRIC DC BRAKE IC 9528 A102J1AA1
SIEMENS MICROMASTER 420 DRIVE 6SE6420-2UC13-7AA1
YASKAWA SERVOMOTOR SGMRS-37A2A-YR11
CUTLER HAMMER PANELVIEW 39PTH PM 3000
MCG SERVO MOTOR PART NO: 2282-MBE4287
NEW LISTING SIEMENS OUTPUT 8X RELAY/10A 6ED1053-1FA00-0BA0
MTSUBISHI MEMORY MODULE MEM-A0