大多数PLC都有拖动步进电机或伺服电机的单轴或多轴位置控制模块。这一功能广泛用于各种机械设备，如对各种机床、装配机械、机器人等进行运动控制大、中型PLC都具有多路模拟量I/O模块和PID控制功能，有的小型PLC也具有模拟量输入输出。所以PLC可实现模拟量控制，而且具有PID控制功能的PLC可构成闭环控制，用于过程控制。这一功能已广泛用于锅炉、反应堆、水处理、酿酒以及闭环位置控制和速度控制等方面。
CUTLER HAMMER CIRCUIT BREAKER FDB3015V
STOBER ANTRIEBSTECHNIK GEARBOX P301AGN0050M
INDRAMAT CONTROLLER CARD AB4-00
FANUC BOARD A16BA
FANUC AC SERVO MOTOR A06B-0128-B175
INDRAMAT PERMANENT MAGNET SERVO MOTOR MAC112C-0-ED-1- B/130-A-0/J1250/S05
FANUC CONTROLLER CARD (FROM OPERATOR PANEL MDI/CRT UNIT) A20B
SIEMENS FREQUENZUMRICHTER/AC DRIVE SIMOVERT VC 6SE7022-6EC61-Z
FUJI ELECTRIC AC DRIVE FVR0.75C11S-2FN
INDRAMAT SERVO MOTORMDD112D-N-030-N2L-130PB0
CUSTOM SERVO MOTORS MPM
SIEMENS MICROMASTER 440 6SE440-2UD25-5CA1
SIEMENS SINUMERIK 840 T MODULE 6FC4101-0TA00
SIEMENS SERVOMOTOR 1FT5062-0AF01-1-Z
GETTYS THREE PHASE HALF WAVE CONTROLLER
FANUC A04B-0234-C214
EXLAR ACTUATOR GSXMFF-EM2-368-EB
ALLEN BRADLEY CONTACTOR 100-A24ND3
SIEMENS SERVOMOTOR 1FT6062-6AF71-3DA0
PACIFIC SCIENTIFIC STEPPER MOTOR E31NCHT-LEN-PD-00
GIDDINGS & LEWIS SINK/SOURCE M.1016.8929 R4,
SIEMENS POWER SUPPLY 6ES5 955-3LC41
SIEMENS BRUSHLESS SERVO MOTOR 1FT5046-1AF71-3EB0
POWERTEC BRUSHLESS DC MOTOR A18CMA
ALLEN BRADLEY DRIVE 1336VT-B050-EOS-L1 REPAIR SERVICE
ALLEN BRADLEY DRIVE 1336S-BX040-AF-EN REPAIR SERVICE
SIEMENS REGULATOR BOARD FOR POWER SUPPLY 6RBA00
SIEMENS SERVO MOTOR 1FK7101-5AF71-1EG2
SIEMENS SINUMERIK 820 M VIDEO GRAPPHICS BOARD 6FX1154-8BB01
FANUC SERVOMOTOR A06B-0115-B704
SIEMENS POWER BOOSTER 6SN1112-1AC01-0AA1 ** NEW OPEN BOX**
INDRAMAT INPUT MODULE RMA12.2-32-DC
ABB BOARD DSQC 314B
MITSUBISHI DRIVE TRA
ALLEN BRADLEY DC SERVO CONTROLLER 1388-AV60
ALLEN BRADLEY AXIS MODULE 2094-BM01-S
SIEMENS SERVO MOTOR 1FK7042-5AF71-1SA5
KOLLMORGEN ENCODER 00-JR
SIEMENS FREQUENZUMRICHTER/AC DRIVE SIMOVERT VC 6SE7022-6EC61-Z