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。
SIEMENS SERVO MOTOR 1FK7042-5AK71-1EH5
FANUC POWER SUPPLY MODULE A06B-6081-H102
SIEMENS SERVO MOTOR 1FK7060-5AF71-1AB5
MITSUBISHI DRIVE FR-E540-0.4K-NA
MTS SERVOMOTOR MPM724CSG7G1N
HELLER UNI-PRO CNC 90 24.001923
ALLEN BRADLEY POWERFLEX 70 20AE6P1A0AYNNNNN
KUKA SERVO DRIVE E93DA
INDRAMAT SERVO DRIVE RAC3.A00-Z1-220
INDRAMAT SERVO DRIVE DDC01.2-N200A-D
SIEMENS SIMOVERT VC DRIVE 6SE7031-1FF60-Z
SIEMENS CONTROLLER CARD 6DD1640-0AC0 EM11
AC TECH DRIVE Q15015B
ACTUS POWER AC SERVO MOTOR NA20-75F
YASKAWA SERVO PACK CACR-SR05BC1ES-Y278
ALLEN BRADLEY PANEL VIEW **AS IS** 2711-B5A2
SIEMENS LANDIS AND STAEFA MXG
ALLEN BRADLEY AC SPINDLE CONTROLLER 8510A-A11-B2
INDRAMAT PERMANENT MAGNET MOTOR MDD112D-N-030-N2M-130GB2
REXROTH SERVO MOTOR MSK071D-0200-NN-M1-UG1-NNNN
INDRAMAT CONNECTOR BOARD BGR BTV30 LK APS01
SBC SERVO MOTOR MBML
RELIANCE ELECTRIC INDUCTION SERVO MODULE UAZ3022
SIEMENS CONTROLLER CARD 6SN1118-0DK23-0AA0
SIEMENS SIMODRIVE 6SN1111-0AA01-0BA2
ALLEN BRADLEY INPUT/OUTPUT MODULE 1746-A13
SIEMENS 3 PHASE BRUSHLESS SERVOMOTOR 1FT6082-8AC71-1AB0
RELIANCE ELECTRIC CARD
ALLEN BRADLEY REMOTE I/O REMOTE 1771-AR
SIEMENS SERVOMOTOR 1FT6105-8AF71-4ED2 REPAIR SERVICE
ALLEN BRADLEY DRIVE 1336-C040-EOG-L2 REPAIR SERVICE
FANUC SERVO AMPLIFIER A06B-6064-H326 REPAIR SERVICE
OMRON REMOTE C200HS-INTO1
ALLEN BRADLEY PANELVIEW T9C1
DC TACHOMETER
ORMEC SERVO DRIVE SAC-SW220/EP
SIEMENS SERVO MOTOR 1FK7083-5AF71-1AB2