December 2001 PLC Functions 7 – 7
7.1.4 The TRACE Function
With the TRACE function you can:
n Control the logical states of markers, inputs, outputs, timers, and counters
n Check the content of bytes, words, and double words
You can select the trace function with the TRACE soft key from the PLC main
menu. The TNC displays:
n The statement list (STL) of the selected PLC program
n The content of the operand and accumulator in hexadecimal or decimal code
for each program line (selectable via 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.
To Next Page
Loading...
