发表于：2010/5/24 22:35:07
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这是一个college课程考试题。请高手指点。
Level 1
CAR PARK ASSIGNMENT
The car park assignment can be done using PLC5 or Softlogix5800. The code should be same except for the 3 digit display. If you use...
A private car park in a city is designed to hold 8 cars. The entrance gate is controlled by the insertion of a “Key Card”(Input #1) into a control box. When the card is inserted, the “Entrance Gate”(Output #1)will rise provided there is space in the car park.
After the car enters the car park, the “In” proximity Sensor located in the ground(Input #2) lowers the “Entrance Gate”.
When a car is leaving the car park, the “Out” proximity Sensor (Input #3) automatically raises the “Exit Gate”(Output #2). The “Exit Gate” is automatically lowered by the “Exit” Sensor (Input #4).
When the car park is full, a sign flashes a message on and off every 2 seconds to show the car park is full. The “In Key” is also disabled until there is a space in the car park.
Show the amount of cars there are in the car park on 3 digit display unit.
Instructions:
Develop the program on paper and hand this in with the rest of the test.
If you have time left at the end the test you can try your program in the PLC to see if it works. If you use RSLogic5000, use the actual name as the tag address.
Inputs:
1. Key Card I:002/00 Momentary Switch
2. In I:002/02 Proximity Sensor located after the Entrance Gate
3. Out I:002/04 Proximity Sensor located before the Exit Gate
4. Exit I:002/06 Proximity Sensor located after the Exit Gate
Outputs:
1. Entrance gate O:002/10
2. Exit Gate O:002/14
3. Car park Full Sign O:002/17
4. Display O:001
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softlogix 5800 tags PLC 5 tags
Level 1
CAR PARK ASSIGNMENT
The car park assignment can be done using PLC5 or Softlogix5800. The code should be same except for the 3 digit display. If you use...
A private car park in a city is designed to hold 8 cars. The entrance gate is controlled by the insertion of a “Key Card”(Input #1) into a control box. When the card is inserted, the “Entrance Gate”(Output #1)will rise provided there is space in the car park.
After the car enters the car park, the “In” proximity Sensor located in the ground(Input #2) lowers the “Entrance Gate”.
When a car is leaving the car park, the “Out” proximity Sensor (Input #3) automatically raises the “Exit Gate”(Output #2). The “Exit Gate” is automatically lowered by the “Exit” Sensor (Input #4).
When the car park is full, a sign flashes a message on and off every 2 seconds to show the car park is full. The “In Key” is also disabled until there is a space in the car park.
Show the amount of cars there are in the car park on 3 digit display unit.
Instructions:
Develop the program on paper and hand this in with the rest of the test.
If you have time left at the end the test you can try your program in the PLC to see if it works. If you use RSLogic5000, use the actual name as the tag address.
Inputs:
1. Key Card I:002/00 Momentary Switch
2. In I:002/02 Proximity Sensor located after the Entrance Gate
3. Out I:002/04 Proximity Sensor located before the Exit Gate
4. Exit I:002/06 Proximity Sensor located after the Exit Gate
Outputs:
1. Entrance gate O:002/10
2. Exit Gate O:002/14
3. Car park Full Sign O:002/17
4. Display O:001
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softlogix 5800 tags PLC 5 tags
[此贴子已经被作者于2010-5-24 22:38:01编辑过]