监控设备：小的有数据可监视数据；大的还可能有图形监视器，可通过画面监视数据。除了不能改变PLC的用户程序，编程器能做的它都能做，是使用PLC很好的界面。性能好的PLC，这种外部设备已越来越丰富。
EMERSON 32-CHANNEL TERMINAL BLOCK KJ4001X1-CJ1
DYNAPAR ENCODER ( NEW,OPEN BOX) HAT51
ALLEN BRADLEY CONDUCTOR 100-F
YASKAWA SERVOPACK DRIVE SGDB-20ADG
ALLEN BRADLEY DRIVE 1336-B040-EAG-FA2
EATON CORPORATION DRIVE AF95AG0C040VLL8 REPAIR SERVICE
SIEMENS SERVO DRIVE D165-G200/12
BALDOR AC INVERTER ID15J203-ER
GLENTEK DC SERVO MOTOR GM4050F-1
SIEMENS SERVO MOTOR 1FK7083-5AH71-1AH0
MITSUBISHI TRANSISTOR BLOCK FX-16EYT-ESS/UL
SIEMENS SERVO MOTOR 1FK7080-5AF71-1AG2
GIDDINGS AND LEWIS INPUT MODULE R1
ALLEN BRADLEY DRIVE 1336-C040-EJG-L2 REPAIR SERVICE
SIEMENS SIMATIC S5 6ES5 350-3KA21
YASKAWA AC SERVO MOTOR USASEM-08F J21
SIEMENS SIMODRIVE UEB. MODULE 6SN1112-1AA00-0AA0
MARSHALLTOWN PRESSURE GAGE (-100 TO 100 KPA )
SIEMENS SERVO MOTOR 1FK7100-5AF71-1EB2
DIRECT LOGIC CONTROLLER CARD F2-02DA-2
SIEMENS SERVO MOTOR 1FT6086-1AH71-3EG1
YASKAWA AC SERVO MOTOR SGMP-02AWYR12
ABB ROBITICS SERVO MOTOR PS P-LSS-4349 , ART NO: 3HAC
SIEMENS TRANSFARMER
FANUC POWER SUPPLY MODULE IC693PWR321T
EMERSON SERVO DRIVE AXIMA 4000
ALLEN BRADLEY DRIVE 1336VT-B010-EAN-L2
FANUC SERVOMOTOR A06B-0147-B075#7008 REPAIR SERVICE
MITSUBISHI SERVO DRIVE MDS-A-CV-220
LENZE 8200 VECTOR DRIVE E82EV152_4C200
POWERTEC BRUSHLESS DC MOTOR F182C1A1N001000
SIEMENS SERVO MOTOR 1FK7040-5AK71-1SA3
FANUC PULSECODER AT101
POWERTEC BRUSHLESS DC MOTOR CONTROLLER C10035N4CAH000
YASKAWA ELECTRIC F7 DRIVE CIMR-F7U45P5, SPEC- 45P51F
SIEMENS 2 AXIS CONTROLLER CARD 6SN1122-0BA12-0AA0
INFOCUS SYSTEMS APT-LS2-004