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 A16BA
FANUC AC SERVO MOTOR A06B-0314-B002
MISUBISHI SERVO AMPLIFIER MR-J4-15KB4 REPAIR SERVICE
INDRAMAT BRUSHLESS SERVO MOTOR MAC 90C-0-GD-2-C/110-A-0/S01 J1250
YASKAWA MINERTIA MOTOR T03M-AR21
ELECTROCRAFT SERVOMOTOR F-4075-Q-04-AA
YASKAWA ELECTRIC SERVO DRIVE CACR-IR 15SFB P00 B11
INDRAMAT PERMANENT MAGNET MOTOR 2AD104C-B050B4-CS06-D2N1
ALLEN BRADLEY DRIVE 1336-B030-EAF-L3
ABB TEACH PENDANT 3HAB
INDRAMAT SERVO MOTOR MAC90C-0-GD-4-C/110-A-1/WI520LX/S001
SIEMENS SERVO MOTOR 1FK7100-5AF71-1SB0
ALLEN BRADLEY DRIVE 1336VT-B050-EAG REPAIR SERVICE
SIEMENS SIMATIC S7 6ES7321-1FH00-0AA0
POWERTEC BRUSHLESS SERVO DRIVE C0031AR4CH072
FANUC GCU UNIT A04B-0234-C406
FANUC CONTROLLER CARD A16BB
SIEMENS SERVO MOTOR 1FK7060-5AF71-1GA2
RELIANCE SERVO MOTOR B14H1060M-SU
INDRAMAT SERVO CONTROLLER TDM3.W0
YASHKAWA AC SERVO MOTOR USADED-32YRW11
INDRAMAT AC SERVO POWER SUPPLY TVM2.WV
YASKAWA SERVO PACK SGDB-30ADG
FANUC PULSECODER AT301
SIEMENS SERVO MOTOR 1FT5072-0AF01-0-Z
FANUC AC SERVO MOTOR A06B-0571-B275
FANUC A05B-2301-C372 Teach Pendant
INDRAMAT AC SERVO COMPACT CONTROLLER DKS1.1-W100A-DA01-00
SIEMENS MICROMASTER 6SE3216-8BA40 VECTOR
SIEMENS RACK 6ES5185-3UA12
GROUPE SCHNEIDER MODICON 140CPS11100
ALLEN BRADLEY DC MOTOR 1326DS-L4D-FL-E1
HEIDENHAIN ENCODER ROD 426 512
ABB CONTROL BOARD DS0C331-3HAB 1821
KEB COMBIVERT DRIVE 13.F4.C0G-4G01
ABB SERVO DRIVE ACSB
BALDOR SERVOMOTOR EM7081T-I (40/50 HP RPM)
WELDING TECHNOLOGY CORP TIMER WT01-T11A
ALLEN BRADLEY ULTRA 3000 2098-DSD-005