Rockwell Automation Publication 1756-RM003N-EN-P - October 2011 637
Debug Instructions (BPT, TPT) Chapter 20
In this case, you would have a tracepoint instruction that has two Trace This
operands (one for a REAL and one for an INT, although the value of any tag can
be formatted with any flag).
The resulting tracepoint window that would appear when the tracepoint is
triggered would look like the example.
Arithmetic Status Flags: Not affected
Fault Conditions: None
Execution:
The heading (the text preceding the
colon in the format string) appears here.
The slot number indicates the slot
containing the emulator module that has
the tracepoint or breakpoint being traced
in the trace window.
The text for the REAL (represented in
the format string as %e) appears here.
The text for the INT
(represented in the format
string as %d) appears here.
Condition Relay Ladder Action
Prescan The rung-condition-out is set to false.
Rung-condition-in is false The rung-condition-out is set to false.
Rung-condition-in is true The rung-condition-out is set to true.
Execution jumps to the rung that contains the LBL instruction with the referenced
label name.
Postscan The rung-condition-out is set to false.
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