Application #1: I/O and DataTable
Simulator
The Input/Output Simulator
includes 8 operable switches (inputs) and 8 operable lights (outputs).
Two Data Table Viewing Windows are supplied which allows the student to
monitor in realtime the status of the I/O bits in the PLC's Data Table
along with the accumulator and preset values of all counters and timers.
Data may be displayed in either binary, hex or decimal format.
Application #2: Automated
Filling System
The Automated Filling System
consists of an operable conveyor with position sensing, product hopper
with valved discharge, level sensing and a PLC Data Table Viewing Window.
As the Lab Manual leads students in developing their ladder logic programs,
errors such as opening the hopper without a container in position will
result in a visual display of product overflow and eventual plant shutdown.
Application #3: The Intersection
Traffic Light Control System
The Intersection Traffic
Light Control System consists of an intersection with 4 traffic lights
and automobiles. This is an ideal lab for demonstrating the use and operation
of cascading PLC timer instructions and word comparison instructions. The
student lab manual leads the student through increasingly more difficult
exercises using these instructions. Two Data Table Viewing Windows are
available for monitoring PLC time and data status. Errors in timer settings
and control system design will result in improper light control and traffic
flow.
Application #4: Batch Mixing
Control System
The Batch Mixing System consists
of a tank with a mixer. Two pump control fill lines are equipped with flow
meters, while a single pumped discharge line with flow meter is available.
Temperature of product is monitored and can be raised via the valved gas
operated burner. Product temperature responds accurately to fill cooling
by using a specific heat calculation. Errors in settings of temperature,
level sensing devices, etc. will result in overheating, visual product
overflow, and eventual plant shutdown.
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