Timer instructions Chapter 23
Rockwell Automation Publication 2080-RM001D-EN-E - February 2015 637
TDF computes time difference.
Arguments
Parameter Parameter Type Data Type Description
EN Input BOOL Function enable.
When EN = TRUE, perform current computation.
When EN = FALSE, there is no computation.
TimeA Input TIME The start time for time difference computation.
TimeB Input TIME The end time for time difference computation.
ENO Output BOOL Enable out.
TDF or Q Output TIME The time difference for the two time inputs.
TDF is name or PIN ID
Q is PIN ID
TDF function language examples
Function block diagram
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