The Silo Simulator
From the Main Menu Screen Select the Silo Simulator
Controlling the Conveyor
Design and test a ladder control
circuit for the Silo Simulator which will incorporate the
following Sequence of Operations:
- Start the conveyor when the
Start Switch ([F2] key) is momentarily pressed.
- Stop the conveyor when the
Stop Switch ([F1] key) is momentarily pressed.
- Energize the RUN status light
when conveyor is moving.
- Energize the STANDBY status
light when the conveyor is stopped.
- Energize FULL light when box
is within the range of the photosensor.
Completely design and de-bug a
ladder control circuit which will automatically position and fill
the boxes which are continuously sequenced along the conveyor.
Ensure that the following details are also met:
- The sequence can be stopped
and re-started at any time using the Stop and Start
- The RUN light will remain
energized as long as the system is operating
- The STANDBY light will
energize and the RUN light de-energize whenever the
system is halted via the STOP switch.
- The FULL light will energize
when the box is full and will remain energized until the
box has moved clear of the photosensor.
Container Filling with Manual Restart
Alter or re-write your program so
that it incorporates the following changes:
- Stop the conveyor and
energize the STANDBY light when the right edge of the box
is first sensed by the photosensor.
- With the box in position and
the conveyor stopped, open the solenoid valve and allow
the box to fill. Filling should stop when the Level
sensor goes true.
- Energize the FULL light when
the box is full. The Full light should remain energized
until the box is moved clear of the photosensor.
- Once the box is full,
momentarily pressing the Start Switch ([F2]) will move
the box off the conveyor and bring a new box into