curity needs a means of determining if there is anyone present in a building. Each person entering the building passes though a turnstile that SON IN detector. Also, each person exiting the building passes through le that trips the PERSON OUT detector. Develop a ladder logic program that the number of persons in the building and provides two indicators: OCCUPIED is when anyone is in the building and VACANT is on when there are no people in the ine. These indicators are visible from outside the building and so one does not need to p5-22. Building se ar office trips the ill trac the building to view these indicators. A guard checks the building late at night and re the building is unoccupied. To handle the situation where there is a miscount, the guard always resets the occupancy count by pressing the RESET button when s/he The guard than has 30 seconds to actually leave the building before the occupancy roed. The guard does check that the VACANT indicator is on at the end of the 30 nds (after exiting the building). Assume that there can be no more than 450 people in building. Develop a ladder logic program to handle this occupancy system. Assume the following physical VO tags/variables: . Variable Description Person enter detector, on for about 0.5 second when person PERSON IN passes through entrance turnstile Person exit detector, on for about 0.5 second when person PERSON OUT RESET OCCUPIED VACANT passes through exit turnstile Reset button switch, on to reset occupancy count in 30 seconds Illuminates when there is anyone in the building Illuminates when there is no one in the building The addresses associated with the physical I/O are: Tag/Variable PERSON IN ControlLogix Local: 1 :I.Data.0 MLogix Siemens Modicon GE 1:0/0 %10.2.0 %11 %10.0 %10.21 %10.2.2 1:01 1:02 0:04 0:05 %10.2 %10.2 %Q4.4 %Q45 %12 %13 PERSON OUT RESET OCCUPIED VACANT Local. I:LData l Local: 1:1.Data-2 Local:2:O.DataA Local:2:.Data.5 %10.2.2 %Q0.3.4 %05 %06 %00.3.5 curity needs a means of determining if there is anyone present in a building. Each person entering the building passes though a turnstile that SON IN detector. Also, each person exiting the building passes through le that trips the PERSON OUT detector. Develop a ladder logic program that the number of persons in the building and provides two indicators: OCCUPIED is when anyone is in the building and VACANT is on when there are no people in the ine. These indicators are visible from outside the building and so one does not need to p5-22. Building se ar office trips the ill trac the building to view these indicators. A guard checks the building late at night and re the building is unoccupied. To handle the situation where there is a miscount, the guard always resets the occupancy count by pressing the RESET button when s/he The guard than has 30 seconds to actually leave the building before the occupancy roed. The guard does check that the VACANT indicator is on at the end of the 30 nds (after exiting the building). Assume that there can be no more than 450 people in building. Develop a ladder logic program to handle this occupancy system. Assume the following physical VO tags/variables: . Variable Description Person enter detector, on for about 0.5 second when person PERSON IN passes through entrance turnstile Person exit detector, on for about 0.5 second when person PERSON OUT RESET OCCUPIED VACANT passes through exit turnstile Reset button switch, on to reset occupancy count in 30 seconds Illuminates when there is anyone in the building Illuminates when there is no one in the building The addresses associated with the physical I/O are: Tag/Variable PERSON IN ControlLogix Local: 1 :I.Data.0 MLogix Siemens Modicon GE 1:0/0 %10.2.0 %11 %10.0 %10.21 %10.2.2 1:01 1:02 0:04 0:05 %10.2 %10.2 %Q4.4 %Q45 %12 %13 PERSON OUT RESET OCCUPIED VACANT Local. I:LData l Local: 1:1.Data-2 Local:2:O.DataA Local:2:.Data.5 %10.2.2 %Q0.3.4 %05 %06 %00.3.5
