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。
SCHNEDIER MODULE TSXBLK4
INDRAMAT SERVO DRIVE DDC01.2-N100A-D
KOLLMORGEN SERVO MOTOR AKM32C-ANCNR-00
NEW LISTING RELIANCE AC DRIVE DSA-MTR 20A
SIEMENS SERVO MOTOR 1FK7080-5AF71-1AA5
ALLEN BRADLEY 700P AC RELAY 700-P800A1
GE SPECTRA CIRCUIT BREAKER SRPE100A
ALLEN BRADLEY DRIVE 1370AR-AOA72-E REPAIR SERVICE
ALLEN BRADLEY BULLETIN 1326 DC PM SERVO MOTOR 1326DP-S3H-A2-C1-F
MISUBISHI SERVO DRIVE MDS-B-SPH-370 REPAIR SERVICE
SIEMENS MOTOR 1FT5074-0AC01-9-Z
SIEMENS SERVO MOTOR 1FT6044-1AF71-4EH1
ACOPOS MODULE BAC120.60-1
CONTROLLER CARD
INDRAMAT CONTROLLER TDM 2.W0/S0101
ALLEN BRADELY FIXED-DEPTH FLANGE-MOUNTED DISCONNECT SWITCH 1494F-N30
SIEMENS PERMANENT MAGNET MOTOR 1FT5102-0AF01-2-Z
SIEMENS SERVO MOTOR 1FK7083-5AF71-1GH0
INDRAMAT 3-PHASE INDUCTION MOTOR 2AD132C-B050A2-BS03-B2N2
INDRAMAT SERVO MOTOR MAC112D-0-ED-4-C/130-A-2/WI574LX/S018
SIEMENS SERVO MOTOR 1FK7080-5AF71-1GA3
MITSUBISHI INPUT PROGRAMMABLE CONTROLLER A616AD
YASKAWA AC SERVO MOTOR SGME-02AF12B
KOLLMORGEN DRIVE SERVOSTAR 306
INDRAMAT SERVO DRIVE TDM 1.W1-000
TEXAS INSTRUMENTS 12/24 VDC OUTPUT MODULE
WOOD'S E-TRAC AC INVERTER AFC2001.OB2S
AEG MODICON 24 VDC INPUT B825 ASSYB REV A
SCHNEIDER ELECTRIC SERVO MOTOR ILP2R573MB1A
ALLEN BRADLEY DRIVE 1336-C020-EJE-S1
SIEMENS SERVOMOTOR 1FT6064-6AF71-4AB1
FANUC SERVO AMPLIFIER MODULE,A06B-6124-H105
INDRAMAT ECO DRIVE DKC11.FW
SCHNEIDER MODICON DISCRETE DC OUTPUT NEW OPEN BOX 140DD035300
WOOD MICRODRIVE EF1C40030B
GIDDINGS & LEWIS ENCODER I/O MODULE R3
SIEMENS DC MOTOR 1GG5132-0GF4-6HU7-Z