User Manual

Programming LOGO!
3.7 Writing and starting the circuit program
LOGO!
Manual, 06/2014, A5E33039675
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3. Move the cursor to AI3: Press or
4. Press
OK
to confirm your selection. The display now shows the AI3 value changes in the
form of a curve, for example:
The display refreshes continuously and the curve shifts to the left of the display bit by bit.
You can press
or to move the screen form to the left/right in order to view the
earlier/later value changes.
What is meant by: "LOGO! is in RUN"?
In RUN mode, LOGO! executes the circuit program. LOGO! first reads the status at the
inputs, determines the status of the outputs by means of the circuit program, and switches
these on or off according to your settings.
This is how LOGO! indicates the I/O status:
In this example, only the inputs I1and I15 and the outputs Q8 and Q12 are set "high".
Status indication on the display
Using the example, you can see how LOGO! displays the input and output states: