Intro to PLCs (Programmable Logic Controllers)

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Latch Program for garage door

Batch Simulator

Batch Simulator Lesson 2

Batch Simulator Lesson 3

Batch Simulator Lesson 4

Batch Simulator Lesson 5

Garage Door Simulator Motors, lights, Limit Switches

Timers

Number Systems

How to convert number systems for PLC

This PDF provides easy know how of how to convert between number systems
Used from all of the info (ex. viewing 1s and 0s  in image table within the memory of the Processor)

Number Systems

How to convert number systems for PLC

This PDF provides easy know how of how to convert between number systems
Used from all of the info (ex. 1s and 0s  in memory of Processor)

Silly fun with the timers on garage door

Silly fun really

This enables the garage door to go back and forth between the switches without stopping

Timers

the

on Rung 003 above T4:0/TT  (xio) instruction will remain true as long as T4:0/TT from rung 001 remains false

Garage Door With 5 second timer (type in 50, but it means 5seconds)

So multiply any time you want by 10 to get the actual timing.

Symbols

Batch Simulator From Lesson 5 Figured out FINALLY

When the start button is pressed pumps 1&2 energize until the Hi-Level switch turns them off. It is at this point that the Hi-Level Sw along with the thermostat turns on the Mixer and Heater which cut off when the thermostat reaches the setpoint. When the setpoint is reached on the thermostat and the Hi-level switch indicates that the tank is full these together energize pump 3 and pump 3 empties the tank and shuts off when the Low-Level Sw indicates that the tank is empty. All stop buttons turn off everything when the stop button is pressed The Idle, Run, and Full lights work

Garage Door Simulator: Motors, Lights, Limit switches

Garage Door Simulator

• The Motor is prevented from burning up between the close and open buttons
• While the motor runs up the down is prevented and vise versa
• Motor up runs until limit switch1 at the top is closed
• Motor down runs until limit switch2 at the bottom is Opened.
• LS 2 Bottom is opened while LS1 at the top is closed making Ajar Lite output energize
• when the LS2 bottom & LS1 top is open the Open light output energizes
• when the LS2 Bottom is closed the shut light turns on 

Not figured out Batch simulator Lesson 5

Lights work
Pumps work
Level switches work
At this moment I have not figured out how to turn off the heater and mixer after they kick on from the level switch this picture is without the mixer and heater so I can contemplate how to address this problem on my own.

The tank is supposed to fill up then stop, while stop heat and mix until a desired setpoint heat is reached and then empty after. I should be able to stop at any time, but I cannot get my stop pushbutton to stop the heater and mixer once activated by the level switch

What I have so far

Batch Simulator Lesson 4

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Today the simulator has no lights or mixer to worry about.
Press the start button and the tank should fill up, but if you stop it and press the start button after that Pumps 1 and 2 should remain off and pump 3 should empty the tank

A fellow student figured this out before I left. I need to figure out how to do this without the Latch