Timer instructions Chapter 23
Rockwell Automation Publication 2080-RM001D-EN-E - February 2015 619
TOF increases an internal timer up to a given value.
Arguments
Parameter Parameter type Data type Description
IN Input BOOL If falling edge, starts increasing internal timer.
If rising edge, stops and resets internal timer.
PT Input TIME Maximum programmed time.
Q Output BOOL
If TRUE: total time is not elapsed.
ET Output TIME Current elapsed time. Possible values range from 0ms to
1193h2m47s294ms.
Tip: If you use the EN parameter with this block, the timer starts
incrementing when EN is set to TRUE, and continues to increment even if EN
is set to FALSE.
TOF timing diagram
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