Hi Expert How To Do Question A B C 1 (83.48 KiB) Viewed 80 times
Hi Expert How To Do Question A B C 2 (87.49 KiB) Viewed 80 times
Figure Q2 shows a process control used to cool down the temperature of a liquid from room temperature 25 °C to a lower temperature for 80 seconds. The cooler is initially maintained at temperature 20 °C using the compressor before the cup containing the liquid is brought into the cooler. Red light, L Cooler Compressor, A cup containing a liquid Owo Temperature Sensor, T Timer-out, TO + 80-sec timer Timer-Start, TS Figure Q2
The narrative statement for the process is: 1. Place the cup containing the liquid into the cooler. 2. When the temperature sensor detects temperature above 23 °C: A. turn ON the red light B. turn ON the compressor C. Start the 80-sec timer (1 timer tick = 100 ms) 3. When the 80-sec timer times up: A. turn OFF the red light B. turn OFF the compressor 4. Remove the cup containing the cooled liquid from the cooler. 5. Go to step 1. (a) Construct a flowchart for the process described above. (b) Develop a programmable controller ladder diagram that implements the process described in Figure Q2. (c) A PLC with I/O scan time of 40 ms and execution time of 15 ms is used to detect parcel in the conveyor. The parcels are 5 cm apart. Analyze the conveyor system to solve the miss counting issue as the conveyor speed is currently set to 1 m/s.
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