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。
MITSUBISHI ELECTRIC MEMORY CASSETTE A3NMCA2
ABB ACS 600 ACSS00B
SIEMENS MOTOR STARTER PROTECTOR 3VE1015-2JU00
DYNAPAR ENCODER ( NEW,OPEN BOX) HAT51
SIEMENS AC MOTOR 1LA2036-4AA
PACIFIC SCIENTIFIC SERVO MOTOR R34JENT-TS-LA-NV-01
MITSUBISHI AC SERVO MOTOR A150B
ALLEN BRADLEY POWERFLEX 70 DRIVE 20AE0P9A0AYNNNNN SER. A
GROUPE SCHNEIDER MODICON 140CPU43412A
ALLEN BRADLEY SLC 500 A0 B
INDRAMAT SERVO CONTROL MODULE TRANS 01 M0 3.0000/OP 01
SIEMENS SERVO MOTOR 1FT6064-1AH71-1EH1
KEB COMBIVERT BRAKE 07.03.
INDRAMAT DRIVE HCS02.1E-W0012-A-03-NNNN
RELIANCE ELECTRIC BRUSHLESS AC SERVO DRIVE BLA-08
OMRON CONTROLLER LINK UNIT CQM1H-CLK21
ALLEN BRADLEY OPERATOR INTERFACE 2706-A41J
ALLEN BRADLEY AC SERVO MOTOR 1326AB-B730E-S2L
MOOG J
SIEMENS POWER SUPPLY 6SN1130-1AA11-0AA0
FANUC MEMORY BOARD A16B
CONTROL TECHNIQUES DRIVE UNI1405-R
FANUC AC SERVO MOTOR A06B-0522-B041
SIEMENS OPERATOR INTERFACE 6FC5103-0AB01-0AA2
SIEMENS SERVO MOTOR 1FK7080-5AH71-1TG5
ALLEN BRADELY DSD-005-SE
SIEMENS AC MOTOR R29N-4
SIEMENS SERVOMOTOR 1FT6086-1AH71-4EH1
SIEMENS SINUMERIK CONTROL PANEL 6FC5203-0AD10-0AA0
GOULD PERMANENT MAGNET MOTOR M331-HK04-80YL-AB
CONTROL TECHNIQUE UNIDRIVE UNI1401
FANUC PLC MODULE A03B-0819-C152
PARKER COMPAX 3 DRIVE C3S038V4F11 I20 T11 M00
ABB DISPLAY BOARD CDP 312
FANUC KEYPAD
FANUC A06B-6100-H001 Servo Amplifier
SCHNEIDER TSX COMPACT NEW OPEN BOX AS-BDAP-208