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。
SIEMENS CONTROLLER CARD 6SC6100-0NA11
NUM SERVO DRIVE POWER 3PWS75L
ALLEN BRADLEY DRIVE 1336-B015-EJE-FA2
BALDOR SERVOMOTOR EM2549T REPAIR SERVICE
ANALOG INPUT MODULE *AS IT IS* 1771-IFE A
FANUC CONTROLLER CARD A16BD
SIEMENS MEMORY MODULE 6FR1826-0AA10-2B
ALLEN BRADLEY POWERFLEX 22A-D6P0N104
BALDOR SERVOMOTOR EM7081T (40/50 HP RPM)
SIEMENS DC MOTOR 1HU3074-0AC01-Z
ALLEN BRADLEY PANELVIEW 2711-T10C15X
FANUC AC SERVO MOTOR A06B-0331-B069
GIDDINGS & LEWIS 5 RACK SLOT
BALDOR VECTOR DRIVE ZD18H430-E0
TRANSFORMER 3 PHASE
ALLEN BRADLEY DRIVE 1336-B015-EAE-L2
ALLEN BRADLEY AC SERVO MOTOR 1326AB-B530E-21-Z13
FANUC A06B-6058-H005 Servo Amplifier
SIEMENS MICROMASTER 6SE9211-1DA40
MINISAFE 4600 MS46SRQ1-R-NC-FP
ABB BOARD DSQC 239
YASKAWA VARISPEED P7 DRIVE CIMR-P7U43P7
MITSUBISHI INVERTER FR-A240E-2.2K
RELIENCE ELECTRIC SERVO MOTOR 1326AB-B520E-21
FANUC CONTROLLER CARD A16B
PACIFIC SCIENTIFIC DRIVE SCT4
SIEMENS SIMODRIVE 6SC6114-0AA00
ALLEN BRADLEY POWER SUPPLY 2094-BC07-M05-S
INDRAMAT SERVOMOTOR 2AD100B-B050B1/AS01/S01
PHOTOELECTRIC SENSOR 10-30VDC 3PIN EP
LENZE DRIVE 8202E.2D.11.V002
HEIDENHAIN ENCODER ROD 426 3000
ALLEN-BRADLEY INPUT MODULE 1771-ICD
YASKAWA POWER SUPPLY JUSP-RCP01-AAD
SIEMENS SIMATIC S7-400 6ES7 421-1EL00-0AA0
ALLEN BRADLEY DRIVE 1336-B040-EJG-RP3
GOULD BRUSHLESS SERVO MOTOR CGP34-RB