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 MOTOR CABLE AT426
ALLEN BRADLEY DC CONTROLLER 1395-B76-D3-P10-P54EN
MITSUBISHI NO-FUSE BREAKER NF30-CB
NEMATRON PLC WORK STATION IWS-120
SIEMENS SIMATIC S5 6ES5 925-3SA11
SIEMENS SERVOMOTOR 1FK7042-5AK71-1GG5
ALLEN BRADLEY AC SERVO MOTOR,1326AB-B520E-S2L
ALLEN BRADLEY POWERFLEX 4 22A-A2P3N114 SER A
BAUMULLER SERVO DRIVE BUM60-VC-0A-0057
TELEMECANIQUE DRINE ATV66U72N4
EUROTHERM DRIVE 584SVUSB
SIEMENS SERVO MOTOR 1FK7042-5AK71-1TG3
ALLEN BRADLEY DRIVE 160-BA10NPS1
LENXE SERVO CONTROLLER EVS9224-E
FANUC CONTROLLER CARD A20BB
BAULULLER AC SERVO MOTOR DSG 71-M65-UL
SIEMENS SERVO MOTOR 1FK7060-5AH71-1SB3
MCG SERVO MOTOR AB34000-Q1
SIEMENS SERVO MOTOR 1FK7063-5AH71-1SA0
SIEMENS SINAMICS POWER SUPPLY 6SL3130-1TE22-0AA0
INDRAMAT DRIVE DDS02.2-W100-B
SIEMENS SERVO MOTOR 1FK7080-5AF71-1EB3
AC MOTOR RFP , B02
ALLEN BRADLEY DRIVE 1336-B040-EAG-S1
STEGMANN INCRMENTAL ENCODER DRS60-E4R01000
LUTZE MODULE 743204
FUNUC INPUT UNIT A14B-0061-B102
SIEMENS SIMODRIVE 6SC6110-0GA01
FANUC SERVO MOTOR A06B-0163-B175
SIEMENS SERVO MOTOR 1 FT5074-0AC01-0-Z
SIEMENS CARD 6FC5357-0BB21-0AE0
BALDOR MAGNET SERVO MOTOR MTE-3363-BLYCN
SIEMENS INPUT/OUTPUT CARD
FANUC AC SPINDLE MOTOR A06B-0847-B100-R
INDRAMAT PERMANENT MAGNET MOTOR MKD112C-024-GP0-AN
VICKERS COMPLETE PLC RACK A
MITSUBISHI SERVO DRIVE MR-SE01