Process control instructions Chapter 18
Rockwell Automation Publication 2080-RM001D-EN-E - February 2015 549
TND stops the current cycle of user program scan. Then, after the output scan,
input scan, and housekeeping, the user program will be re-executed from the start
of the first routine.
Arguments
Parameter Parameter Type Data Type Description
Enable Input BOOL Function enable.
When Enable = TRUE, perform the function.
When Enable = FALSE, do not perform the function.
TND Output BOOL If true, function performed.
Tip: When variable monitoring is on, the monitoring variable’s value is
assigned to the block’s output.
When variable monitoring is off, the output variable’s value is assigned to
the block’s output.
TND function language examples
Function block diagram
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