Scenario 2: Input A Input B m mum w Output • The two inputs, A and B are connected to discrete inputs of a micro-PLC. •
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Scenario 2: Input A Input B m mum w Output • The two inputs, A and B are connected to discrete inputs of a micro-PLC. •
Questions: a) Find and prove what the relationship between inputs A and B is, that will produce the required Output. At the end of your answer, the logical relationship must also be defined by a logic truth table with a suitable heading. b) Give an implementation of this functionality in LD, with the 20s free-running time base implemented. a) Proof that the required functionality has been achieved by pasting a minimum series of simulation results, or a minimum set of traces of the constituent variables. b) consider the problem as formulated above. Write down advantages and disadvantages of each language of the IEC6113-3 standard languages, specifically for solving this problem. Clearly state which languages are to be recommended for solving such a problem, and which are clearly not recommended. Use the table below. m
Scenario 2: Input A Input B m mum w Output • The two inputs, A and B are connected to discrete inputs of a micro-PLC. • A free-running time base of 20s per frame, is established. • Arbitrary 20s boundaries are shown in red in the timing diagram and the figure shows the behaviour of the output (Output), in reaction to the inputs A and B.