Question

Hi, Can someone help me with this PLC (industrial automation) Questions please.

4.1) Application Scenario #1 A drilling tool (T) is required to operate in two different modes, START/STOP or PULSE, depending on the selection made by the user via three push-buttons (START push-button, STOP push-button, and PULSE push-button). Assume that the real application elements and the prototype elements from the PLC panel relate to each other according to the definitions from Table 1. Real Application Elements START push-button STOP push-button PULSE push-button Drilling Tool (T) VO Mapping for Assumptions PLC Panel Elements I136.0 I136.1 I136.2 Q136.0 Input 1 when push-button is presse Input-1 when push-button is pressed input = 1 when push-button is pressed Output-1 turns the drilling tool ON Table 1 Devise and test a PLC solution that fulfils the following requirements: " If the START push-button is pressed then the drilling tool (T) turns ON and remains ON after the START push-button is released. If the STOP push-button is pressed while the drilling tool (T) is ON, then the drilling tool (T) turns OFF and remains OFF after the STOP push-button is released. . If the PULSE push-button is pressed while the drilling tool (T) is OFF, then the drilling tool (T) turns ON, however if the PULSE push-button is released then the drilling tool (T) turns OFF. Hint: This task requires the use of an auxiliary memory bit. 4.3) Application Scenario #3 A carpark has capacity for 6 cars. A sensor SI counts the number of cars entering the carpark and a sensor S2 counts the number of cars exiting the carpark. A red light (L) indicates the carpark is full and a gate solenoid (G) prevents from cars entering the carpark when there isn't space available. Entrance S2 Exit Fig. I Assume that the real application elements and the prototype elements from the PLC panel relate to cach other according to the definitions from Table 3. Real Application Elements Entrance sensor (S1) Exit sensor (S2) Gate solenoid (G) Red light (L) LO Mapping for Assumptions PLC Panel Elements 1136.0 1136.1 0136.0 Q136.1 = 1 when car in front of sensor Input 1 when car passes in front of sensor Output = 1 closes the gate -1 turns the light ON Table 3 Devise and test a PLC solution that fulfils the following requirements: ·Ifthe number of cars inside the carpark reaches 6, then turn the red light ON (L = 1) and close the gate arm (G 1) Maintain the red light ON (L 1) and gate arm closed (G1) until one or more parking spaces become available

Answer 1

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