Question

17) Design a PLC program and prepare an I/O connection diagram and ladder logic program that will correctly execute the packaging process illustrated in Figure 8-21 Enter the program into the PLC, and prove its operation. The operational sequence can be summarized as follows: » The purpose of this process is to deposit 50 pieces of the product in each container. . The process is set in operation by pressing a start pushbutton. . As the product passes through the light beam, it is detected by the photoelectric proximity switch and counted by the PLC counter. When the count reaches 50, the solenoid-operated deflector plate (SOL A) energizes to channel the product from chute A to chute B . . The counter is reset automatically for the next count of 50. When the second count of 50 is reached, the solenoid-operated deflector plate de- energizes to channel the product back into chute A, and so on. . Provisions must be made for stopping the process at any time and manually resetting the accumulated value of the counter to any number. Photoelectric proximity switch Containers Chute A oooChute B Figure 8-21 Control process for assignment 17. Light beam Product Solenoid-operated deflector plate (SOL A)

Answer 1

Outputs senso 3 STALI

START STOP AuutoManuol o: 21 O: 2l up Count- Counter- cs:) Acc. m、Cail o:니' SOL A CTO-2 UP coun Ace- rA CS: R卫 Reset RES Reset

50 counts and curo Reset İnput 1:'/s L-A - gets enegized SoL A - Counts 50 puss of proximily s de-enes counts o pueo f Proimty CTU 2. ener