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。
ABB 3 PHASE TRANSFORMER 3HAC 6163-1
MOOG SERVO MOTOR C
SIEMENS SITOP POWER 2,5 SUPPLY 6EP1332-1SH12
ABB ROBOTICS SERVO MOTOR 1FK6083-6AZ21-9ZZ9-Z S02
SIEMENS SERVO MOTOR 1FT6084-1AH71-2EG1
EMERSON DELTAV MODULE KJ3223X1-BA1
SIEMENS SERVO MOTOR 1FK7060-5AH71-1TB5
SCHNEIDER DISCRETE INPUT MODULE TSXEEF08D2
ABB POWER SUPPLY SR 92B130
SIEMENS SERVO MOTOR 1FK7083-5AF71-1SB0
BALDOR SERVO MOTOR BSM80A-350AA, BS/M80A-350AA
YASKAWA ABSOLUTE ENCODER UTMAE-B12DA
OMRON SERVO MOTOR (NO ENCODER ) R88M-U75030VA-S1
SIEMENS CONTROLLER CARD 6SN1118-0AD11-0AA1
ALLEN BRADLEY SERVOMOTOR MPL-580J-MK22AA
HP POWER SUPPLY DPS-800GB A
GETTYS PERMANENT MAGNET SERVO MOTOR
FANUC A06B-6088-H215#H500
SANYODENKI SERVO AMPLIFIER 60BB075FXW14
ALLEN BRADLEY DC INPUT 32 POINT MODULE
SIEMENS SIMATIC S5 6ES5 951-7LB21
CINCINNATI MILACRON ACRAMATIC 850SX CONTROLLER CARD 3 542 1014A REV. G
SIEMENS SERVO MOTOR 1FK7101-5AF71-1TG2
SIEMENS SINUMERIK 820 PANELVIEW *MISSING POWER SUPPLY*
FANUC BOARD A16BA
STOBER GEARBOX P701PN0030M
MODICON H827 MODULE HOUSING AS-H
SIEMENS SERVO MOTOR 1FT6086-1AF71-2EG1
ALLEN BRADLEY DRIVE 1336VT-B040-EOR-L1
SIEMENS SERVO MOTOR 1FK7042-5AF71-1AH2
OMRON CPU BASE UNIT C200H-BC051-V2
MITSUBISHI CONTROLLER CARD BD624A785G53
ALLEN BRADLEY DRIVE 1336-C040-EJG-L2 REPAIR SERVICE
OKUMA DC POWER SUPPLY DC-S3A
ALLEN BRADLEY ARMATURE PULSE BOARD 110996
SIEMENS AC MOTOR 1LA7107-4AA11-Z31
FANUC POWER UNIT A14B-0082-B201-06
INDRAMAT OPERATOR INTERFACE BTV30.2CA-64R-11C-D-FW
ALLEN BRADLEY 8520-1APA1 Processor