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 AC SERVO MOTOR F-4030-Q-H00AA
ALLEN BRADLEY VERSAVIEW CE LOGIC MODULE 6189-RPEHA
SIEMENS SERVO MOTOR 1FK7063-5AH71-1EH2
MICROSAFE MC 4200 MC4248RE
SIEMENS SERVO DRIVE D165-G200/12
YASKAWA ELECTRIC CARD JANCD-MBB02-1
FANUC SERVO MOTOR A06B-0511-B001#1000
EATON PANELMATE PANELMATE 1000, 8 PG (P/N- 92-00 756-01)
SIEMENS SERVO MOTOR 1FK7063-5AH71-1SB2
SIEMENS SERVO MOTOR 1FT6105-1AC71-4AG1
ALLEN BRADLEY 1771-P4 120 AC POWER SUPPLY
RELIANCE ELECTRIC DRIVE AS IT IS S
EUROTHERM DRIVE 584SVUSB
INDRAMAT PANELVIEW CLT01.1C-PA-NA-SLB-FW POWER BOARD BGR CNT 03-00 CLT 01
SIEMENS SIMOREG DC CONVERTER 6RA7028-6FS22-0 Z
WARNER ELECTRIC ACTUATORS D24-05B5-04
BALDOR VECTOR DRIVE ZD18H220
PAPST MULTIFAN 4394
SIEMENS SERVO MOTOR 1FT6064-1AH71-4EH1
INDRAMAT PM SERVOMOTOR MAC063D-0-FS-4-C/095-B-1/WI511LV/S007
GLOBAL POWER SUPPLY GHOF 3-24
SIEMENS SERVO MOTOR 1FK7103-5AF71-1GH2
ALLEN BRADLEY 1336 PLUS SENSORLESS DRIVE 1336S-B015-AA-EN4 SER D
AC FREQ DRIVE G2 TOSVERT 130 15HP TOSHIBA M4 143
CONTROLLER CARD
ALLEN-BRADLEY OUTPUT MODULE 1771-OZC SER.C
FANUC CONTROLLER CARD A20BA
ALLEN BRADLEY 1746-N14
FANUC OUTPUT MODULE A03B-0801-C117
ELMO MOTION CONTROLLER CLAC
MERLIN GERIN CONTACTOR NSF150 H ,ISSUE NO: XR-1872 WITH DM 150 DP TRIP
ALLEN BRADLEY 2711-T6C10L1 Panelview
INDRAMAT SERVO CONTROLLER KDV2.
BALDOR VECTOR DRIVE ZD15H540-EO
GUSHER 3 PHASE MOTOR MSCFJ
FANUC BOARD A16BA
REX TRANSFORMER 3PR-0130C3H