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。
ALLEN BRADLEY DRIVE 1336VT-B050-EOS REPAIR SERVICE
UNICO DRIVE 108233 ECL 9
SIEMEMS MICROMASTER 440 6SE6440-2UC24-0CA1
SIEMENS POWER SUPPLY 6SN1130-1AA11-0AA0
BOSCH SERVO MOTOR SF-A4.0230.030-00.035
ALLEN BRADLEY POWER SUPPLY 1775-P1 SER B
MISUBISHI SERVO DRIVE MDS-B-SPH-370 REPAIR SERVICE
SIEMENS SERVO MOTOR 1PH7133-2JF02-0BA0
ALLEN BRADLEY STARTER 509-C0D
ALLEN BRADLEY DRIVE 1336-C025-EOF-S1
MODICON ANALOG OUTPUT MODULE AS-B
FANUC INV POWER UNIT A04B-0229-C405
FANUC SERVO MOTOR A06B-0514-B531#7076
INDRAMAT PERMANENT MAGNET MOTOR MKD112C-024-GP0-AN
YASKAWA MOTOMAN BOARD JANCD-MRY01B-2
NEW LISTING POWER MEASUREMENT POWER SUPPLY N
INDRAMAT SERVO DRIVE HDS04.2-W200N-HS09-01-FW
DANFOSS DRIVE FC-051PK75T4E20H3XXCXXXSXXX (P/N: 132F0018)
GIDDINGS & LEWIS ENCODER I/O MODULE R3
INDRAMAT BLEEDER TBM1.1-20-W1-115
CONTROL TECHNIQUE DRIVE MD
ALLEN BRADLEY DRIVE 1336VT-B050-EOS REPAIR SERVICE
ALLEN BRADLEY SERVO DRIVE 8520-HR10-A1-A2-A3-A4-BAT-EX4-Z-1-2-2Q-3-5-7 SER A
ALLEN BRADLEY SLC500 TRIAC OUTPUT MODULE 1746-OA16 SER B
LENZE SERVO MOTOR MDFKARS100-22
ALLEN BRADLEY SERVOMOTOR MPL-580J-MK22AA
INDRAMAT AC SERVO POWER SUPPLY TVD 1.
MISUBISHI SERVO DRIVE MDS-A-CR-55 REPAIR SERVICE
OKUMA DRIVE U REPAIR SERVICE
NEMA GEAR BOX 701001
ALLEN BRADLEY DRIVE 1336-B015-EAE-L1
INDRAMAT SERVO MOTOR 112C-0-ED-4-C/130-B-0/WI518LX/S005
SIEMENS SINUMERIK MODULE 6FC5111-0CA02-0AA2
ALLEN BRALDEY SLC500 OCTAL INPUT MODULE 1746-IB16 SER C
ABB CONTROL BOARD DSQC 331
SIEMENS SERVO MOTOR 1FK7103-5AF71-1EH5
DATA INSTRUMENTS SHADOW MIRROR