CONTROLLER CAPABLE OF DETECTING FACTOR AT TIME OF ABNORMALITY OF PC FUNCTION

摘要

Provided is a controller capable of performing discrimination as to whether abnormality is caused by a hardware factor or a software factor according to an output state of a signal at the time of occurrence of the abnormality. The controller has a PC function and includes a hardware timer configured with only hardware and a software timer performing counting by software, and the controller generates a signal indicating that a hardware timer is working and a signal indicating that a software timer is working and outputs these signals.

主权项

1. A controller having a PC function, comprising:
a hardware timer that is configured with only hardware; a software timer That performs counting by software; a hardware timer during-startup signal generation unit that generates a hardware timer during-startup signal indicating that the hardware timer is in a state during startup; a software timer during-startup signal generation unit that generates a software timer during-startup signal indicating that the software timer is in a state during startup; and an output unit that outputs a state of the hardware timer during-startup signal and a state of the software timer during-startup signal.