You can find the other parts of the exercise here: http://mestaa.blogspot.com/2011/05/plc-training-exercise-2-solution-with.html
RSEmulate Tutorial:
You can find a good tutorial for RSEmulate 5000 here: http://www.plcdev.com/a_quick_tutorial_on_rslogix_emulator_5000.
Pay attention especially in the last part where it says that for inputs you should refere to local_input[1] and for output refere to local_output[0].
7)Simulation
In test driven development usually it's a good habit to write simulation before the logic, and then test the logic while writing it.
To simulate a real plant just connect the output to inputs, designing an ideal behaviour of your plant.
For example we know that when the motor is ON the conveyor moves and the position of the box changes.
When the box is in a certain position we know also that the Prox Sensor must be ON.
So to simulate that the position increase use a DINT variable to increment when the motor is ON and to reset after a defined value (8 in my case).
Then turn ON the proximity when position is between 3 and 5.
The same can be done with the level sensor, but we have to remember that when the box is full, the level sensor remains ON until the box hasn't moved away from it.
The following is one way to simulate this process.
RSEmulate Tutorial:
You can find a good tutorial for RSEmulate 5000 here: http://www.plcdev.com/a_quick_tutorial_on_rslogix_emulator_5000.
Pay attention especially in the last part where it says that for inputs you should refere to local_input[1] and for output refere to local_output[0].
7)Simulation
In test driven development usually it's a good habit to write simulation before the logic, and then test the logic while writing it.
To simulate a real plant just connect the output to inputs, designing an ideal behaviour of your plant.
For example we know that when the motor is ON the conveyor moves and the position of the box changes.
When the box is in a certain position we know also that the Prox Sensor must be ON.
So to simulate that the position increase use a DINT variable to increment when the motor is ON and to reset after a defined value (8 in my case).
Then turn ON the proximity when position is between 3 and 5.
The same can be done with the level sensor, but we have to remember that when the box is full, the level sensor remains ON until the box hasn't moved away from it.
The following is one way to simulate this process.
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