February 2012 11 – 127
11.4.3 The TRACE function
The TRACE function makes it possible to check the logical conditions of PLC operands (M,I,O,T,C)
within the respective PLC files (statement list).
Furthermore, the contents of bytes, words and double words can be checked.
Activation You are on the PLC main page.
8 Switch to the next soft-key row.
8 Soft key to call the TRACE function.
Selecting a PLC
program section
8 Call the program management.
8 Select the file to be checked with the cursor.
8 Press the ENT key to load this file in the TRACE mode.
The statement list (STL) of the compiled program is displayed.
In addition, the contents of the operand and the accumulator are displayed in HEX or decimal code for
every program line (can be selected by soft key).
Each cyclically executed command of the STL is identified with a C or with an S if it is a Submit program
section.
8 Place the cursor on the program section to be examined (e.g., with the GOTO key, the FIND soft
key, the cursor keys).
Evaluation Evaluate the PLC program sections in the TRACE mode together with the machine tool builder!
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