A retentive timer in a Mitsubishi PLC maintains its timing worth even when energy is misplaced. By retaining knowledge to a non-volatile reminiscence chip on the PLC’s circuit board, the worth won’t be misplaced throughout a brief or everlasting energy outage. That is vital for functions the place it’s important to maintain observe of time, even when the ability is off.
One frequent use for a retentive timer is to trace the full run time of a machine. This may be helpful for upkeep functions, as it may well assist to establish when the machine must be serviced. One other frequent use for a retentive timer is to trace the time since a selected occasion occurred. This may be helpful for troubleshooting functions, as it may well assist to establish when an error occurred.
