Test your GRAFCET knowledge

This quiz is provided by MHJ-Software GmbH & Co. KG.
Contact: vertrieb@mhj.de

We wish you much success.

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* 1. With how many steps can a transition be connected (without parallel branching)?

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* 2. How is the logical OR represented in a transition condition? Which example is correct?

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* 3. How is the logical AND represented in a transition condition? Which example is correct?

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* 4. How is a comparison represented in a transition condition? Which example is correct?

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* 5. After a step: How many transitions may a step be connected with?

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* 6. When does a transition activate the next step?

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* 7. May several steps be active simultaneously in a linear Grafcet step sequence?

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* 8. Which statements about a continuous action are correct?

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* 9. What result does an output have if it is influenced by several continuous actions?

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* 10. What result does an output have if it is influenced by several continuous actions and stored actions?

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* 11. Linear sequence of steps (see picture below) consisting of 5 steps. Each transition has the condition "S1". Step 1 is active. Question: What happens if S1 is switched on?

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Bild:

Bild:

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* 12. Linear step chain (see picture below) consisting of 5 steps. Each transition has the condition "Rising edge of S1". Step 1 is active. What happens when S1 is switched on?

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Bild:

Bild:

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* 13. What happens in the Grafcet chart (see figure below) when a rising edge of I1 occurs twice in a row?
Hints: The 1st transition is a source transition. The last transition is a pit transition.

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Figure:

Figure:

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* 14. The following Grafcet plan is given (see picture below). Step 1 is active. S1 is switched on and then remains True. Which outputs are now True?

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Figure:

Figure:
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