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。
FANUC BOARD A20BA
ALLEN BRADLEY PANELVIEW PLUS 1000
ALLEN BRADLEY CONTACTOR 100-B110N*3 SER B
ALLEN BRADLEY AC SERVO MOTOR YH04AA
SIEMENS SERVO MOTOR 1FT6086-1AF71-2AG1
SIEMENS SIMOREG DRIVE,D200/40
SIEMENS SERVO MOTOR 1FT6102-1AC71-2EH1
INDRAMAT SERVO MOTOR MAC090C-1-GD-4-C/110-A-0/WI520LV
CUSTOM SERVO MOTOR MPM
ALLEN BRADLEY I/O SCANNER MESSAGE HANDLING 1775-S4B
SIEMENS SERVO MOTOR 1FK7080-5AH71-1SH3
ALLEN BRADLEY SERVO DRIVE 1336-B003-EDD-L3
ALLEN BRADLEY DRIVE 1336-B020-EJE-RP3
CONTROLLER CARD
INDRAMAT PROGRAMMING MODULE MOD1/1X
SIEMENS SERVO DRIVE 6SN1124-1AA00-0CA1
SIEMENS SERVO MOTOR 1FK7042-5AK71-1SH3
POWER SUPPLY FIXTURE
ALLEN BRADLEY DRIVE 1336-C020-EOE-L1
MITSUBISHI CPU UNIT Q2ASHCPU-S1
LENZE INVERTER 8200 VECTOR E82EV551_4C906
FANUC SERVO MOTOR A06B-0356-B755
ALLEN BRADLEY DC INPUT MODULE 1746-IV8 SER A
COMPUMOTOR SERVO DRIVE GV-U3E
MAGELIS DATA ENTRY PANEL C1700
FANUC DC MOTOR A06B-0642-B012
CINCINNATI MILACRON SERVO DRIVE BDSW32
SIEMENS SERVO MOTOR 1FK7083-5AF71-1SB2
INDRAMAT PERMANENT MAGNET MOTOR MDD112C-N-040-N2M-130PB2
FANUC SERVO AMPLIFIER A06B-6079-H108
SIEMENS SERVO MOTOR 1FK7060-5AH71-1TB3
MODICON CONTROLLER CARD POWER SUPPLY AS-P933-00
DRIVECON DRIVE VE 5148HG-30
SIEMENS SERVO MOTOR 1FK7083-5AH71-1AB5
SIEMENS SERVOMOTOR 1FK7044-7AF71-1FB0
SIEMENS MODULE 6SN1145-1A01-0AA1
SIEMENS SERVO MOTOR 1FK7101-5AF71-1GB2
DYNAMO TACHOMETER ,RDC 14 MF0.02 CA
GLENTEK DC SERVO MOTOR GM4050F-1