subject

Here's a plc challenge.

— a traffic light program has 12 real-world lights. there are 3 for north, 3 for south, 3 for east, and 3 for west.

— the north and south work simultaneously while east and west work simultaneously, but opposite of north and south. (think of a real world traffic pattern)

— the red lights will be energized for 30 seconds.

— the yellow lights will be energized for 5 seconds.

— the green lights will be energized for 25 seconds.

— a maintained spst must be used to start the program running and will stop the program if opened at any time. (this switch operates as both the start and stop)

— if the program is ever stopped at any time during operation, to include loss of power, the sequence must start back up exactly where it left off without the use of any other input besides the one spst switch returning to the closed position.

— you are to keep a total count of cycles (green, yellow, red completion is one cycle) for maintenance purposes. the total count is to be reset with a momentary pb.

— you must use a minimum of 3 instructions, 1 math instruction, and 1 n7 integer file.

— you can only use 1 timer.

— total cycle count must be done without a counter.

good luck to whoever can get this!

ansver
Answers: 1

Another question on Computers and Technology

question
Computers and Technology, 22.06.2019 11:00
Technician a says that the radiator usually cools better if the front air dam is removed. technician b says that when a condenser has a leak it can be repaired easily with epoxy. who is correct?
Answers: 1
question
Computers and Technology, 22.06.2019 18:10
Assume that to_the_power_of is a function that expects two int parameters and returns the value of the first parameter raised to the power of the second parameter. write a statement that calls to_the_power_of to compute the value of cube_side raised to the power of 3 and that associates this value with cube_volume.
Answers: 1
question
Computers and Technology, 23.06.2019 03:30
Hashtags serve to identify the topic of a given tweet true false
Answers: 2
question
Computers and Technology, 23.06.2019 06:00
Respond to the following in three to five sentences. select the workplace skill, habit, or attitude described in this chapter that you believe is most important for being a successful employee.
Answers: 1
You know the right answer?
Here's a plc challenge.

— a traffic light program has 12 real-world lights. there are 3...
Questions
question
Mathematics, 16.02.2021 01:50
question
History, 16.02.2021 02:00
Questions on the website: 13722365