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19.2.4. Step operation
You can execute a program that has been opened in the debug mode one step at a time.
In the online or simulation mode, open the program in the debug mode. The step function on the operation panel
is enabled.
Figure 19-12 Step Operation in Operation Panel Screen
Operate with the [FORWD] or [BACKWD] button in the "Step" group on the operation panel.
Clicking the [FORWD] button executes the command on the current execution line and advances the current
execution line by one line. Clicking the [BACKWD] button executes the command on the current execution line
and returns the current execution line by one line. Backward execution by one line can be executed only for
interpolation commands. The maximum number of lines that can be returned to by backward execution is four
lines.
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