Delta Electronics VFD037CH23A-21 — пример работы PLC: команды и управление процессами [523/638]

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Delta Electronics VFD750CH23A-00/-21 [523/638] Example
Chapter 16 PLC Function CH2000 Series
16-70
Example
As the PLC starts to run, M0 = ON will be triggered, and a MODRW command will be
executed.
If the command is correct and once a reply is sent from the slave, a ROL command will be
executed, and then M1 will be ON again.
Once a reply is sent from the salve, M50=1 will be triggered after PLC’s scanning cycle is
delayed by 10 times, then a MODRW command will be executed.
If the command is correct and once a reply is sent from the slave, a ROL command will be
executed, and then M2 will be ON again. Since M2 is repeated, so it changes K4M0 to K1,
then only M0=1, this command will repeat itself.. If more commands need to be added, simply
add blue color command and change repeat M to repeat Mn+1

Содержание

1610

Изучите пример работы PLC, включая команды MODRW и ROL, а также управление состояниями. Понимание циклов сканирования и взаимодействия с устройствами.