PLC glossary
Retentive timer
A timer that keeps elapsed time when its request stops. A separate reset clears the stored time.
- Also called
- retained timer
- On site
- A maintenance total can add several separate periods of machine use.
- Siemens
- Retentive timing is a reading topic here, rather than a supported practical timer exercise.
- Rockwell
- RTO/RTOR are retentive; TONR in these ST lessons is non-retentive despite its name.