The Trace Function - HEIDENHAIN iTNC 530 Technical Manual

8.1.4 The TRACE Function

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With the TRACE function you can:
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Control the logical states of markers, inputs, outputs, timers, and counters
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Check the content of bytes, words and double words
Select the TRACE function through the TRACE soft key in the PLC main
menu. The TNC displays:
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The statement list (STL) of the selected PLC program
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For every program line, the content of the operand and the accumulator in
HEX or decimal code (selectable by soft key)
The TNC identifies every cyclically executed command with an asterisk (*).
With the arrow keys or the GOTO function you can select the program section
that you would like to see on the screen.
The PLC program to be selected is chosen with PGM MGT, and must be the
currently active main program or a file integrated with USES.
HEIDENHAIN Technical Manual iTNC 530