PLC在执行梯形图程序时，用解释程序将它翻译成汇编语言然后执行（PLC内部增加了解释程序）。与直接执行汇编语言编写的用户程序相比，执行梯形图程序的时间要长一些，但对于大多数机电控制设备来说，是微不足道的，完全可以满足控制要求。
Siemens 6SN1123-1AA00-0AA1 Power Module
SIEMENS MICROMASTER VECTOR DRIVE 6SE3212-8BA40
PARKER SERVO MOTOR MPM892ASG7G1N
CONTROL TECHNIQUES DRIVE DD-400 ( )
YASKAWA AC SERVO MOTOR USASEM-08F J21
FANUC SERVO MOTOR A06B-0372-B169-R
SIEMENS SERVO MOTOR 1FK7083-5AF71-1AH5
ALLEN BRADLEY DRIVE 1370AR-AOB74-E REPAIR SERVICE
ALLEN BRADLEY DRIVE 1336VT-B010-EON-L1
SIEMENS SERVO MOTOR 1FT6034-1AK71-4AH1
WEST INSTRUMENTS CONTROL MODULE DIGITAL DISPLAY N6100-Z320000 S14
LINCOLN ELECTRIC POWER WAVE 450 10431
FANUC BOARD A16BA
SIEMENS SERVO MOTOR 1FK7032-5AK71-1TA5
BOURDON HYDRAULIC PRESSURE GAGE CLASS 1, AISI 316 L (0-15 PSI)
SIEMENS PERMANENT MAGNET MOTOR 1FT5102-0AC71-1-Z
SIEMENS MICROMASTER 440 6SE6440-2AB21-5BA1
FANUC A06B-6092-H245#500
INDRAMAT SERVO DRIVE HDS03.2-W075N-HS32-01-FW
FANUC AC SPINDLE MOTOR A06B-0847-B100-R
ALLEN BRADLEY DRIVE 1336VT-B050-EAG REPAIR SERVICE
CUTLER HAMMER PANELMATE 1570 PM 1500 POWER SERIES ( P/N- )
CONTROL TECHNIQUES DXM-340C SERVO MOTOR
NUNOME ELECTRIC TRANSFORMER NETH7500AULS16
SIEMENS SIMATIC S5 6ES5 456 7LA11
SIEMENS SERVO MOTOR 1FK7060-5AH71-1AB5
EMERSON SERVO DRIVE DXA-450
SIEMENS SERVO MOTOR 1FT6086-1AH71-2AH1
FANUC VELOCITY CONTROL UNIT A06B-6050-H103
ALLEN BRADLEY DRIVE 1336-B020S-EOE
HYDROSYSTEMS PANEL SPC9601
ABB ROBOTICS SERVO MOTOR,PSP-PMB-4136
SIEMENS MOTOR 1FK7060-2AF71-1CH2
CONTROL TECHNIQUES DXM-340C SERVO MOTOR
PILZ DISPLAY 307668
JOKAB SAFETY RELAY RT6
FANUC I/O BASE UNIT A03B-0801-C009