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。
FANUC CARD A16B
INDRAMAT AC SERVO POWER SUPPLY TVM2.WV
FANUC CONTROLLER CARD A20BA
ALLEN BRADLEY DRIVE 1370AR-AOA73-E REPAIR SERVICE
FANUC BOARD AL6BU/03A
IBT TECHNOLOGIES PANELVIEW IBT899
SIEMENS SUS STEP 7 PROFESSIONAL SOFTWARE 1P EWK-SUS
SCHNEDIER PLC MODULE TSXCCM100
ALLEN BRADLEY AC SERVO CONTROLLER 1394C-AM07 SER C
SIEMENS CONTROLLER CARD 6RB2000-0ND00
SIEMENS SERVO MOTOR 1FK7100-5AF71-1EH3
ALLEN BRADLEY SLC 500 BASIC MODULE 1746-BAS
KEB COMBIVERT 09.FO.
TRANSFORMER 3 PHASE B-AL-18.5K
SIEMENS CONTROLLER CARD 6SN1118-0AA11-0AA0
BAUMER ELECTRIC ENCODER BHF 16.05A1000/K392
ALLEN BRADLEY DRIVE 1336-C020-EOE-FA2
SIEMENS SERVO MOTOR 1FT6105-1AC71-4AG1
SIEMENS SERVO MOTOR 1FK7080-5AF71-1GG3
SIEMENS SERVO MOTOR 1FK7083-5AH71-1AH5
GENERAL PURPOSE AC DRIVE CIMR-P5U43P7
SIEMENS SERVO MOTOR 1FT6034-1AK71-2EH1
SIEMENS SERVO MOTOR 1FT6086-1AF71-1EG1
MICHAEL RIEDEL TRANSFORMER RSTN 1000
SIEMENS MODULE RACK 6FC5111-0CA73-0AA1
SIEMENS SERVO MOTOR 1FK7103-5AF71-1SH0
FANUC CONTROLLER CARD A20BB
SIEMENS SERVO MOTOR 1FK7040-5AK71-1TG5
ALLEN BRADLEY INPUT MODULE 1794-IV16 SER.A
INDRAMAT MOTOR 2AD160C-B350A1-BS03-B2V2
CINCINNATI MILACRON PT/NO. CIRCUIT BOARD PCB-FSC
CUTLER HAMMER BASE RACK (7 SLOT) D300RAK07B
SIEMENS CONTROLLER CARD 6SN1118-0DM33-0AA0
SIEMENS ENCODER FEEDBACK CABLE (50 M) 6FX8002-2EQ10-1FA0
FANUC AC SERVO MOTOR A06B-0216-B200
ELAU SERVO MOTOR SMP0-44-M1-B0
YASKAWA AC SERVO MOTOR SGMPS-02ACA21