Runtime Test Cases
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Worst cases were taken into account and solved.
PLC Program to Operate 4 Outputs Simultaneously with Time Delay
This is a PLC Program to Operate 4 Outputs Simultaneously with Time Delay.
Problem Description There are total four number of outputs which should be run one by one with a particular time delay.
Implement this in PLC using Ladder Diagram programming language.
Problem Solution
Generate Master Start and Stop buttons to activate the sequence and define four outputs.
Use TON timer to generate a particular time delay, same or different.
Use Done bit of first timer to energize other output and activate second timer.
Repeat this process until the final output is energized and last timer is activated.
Reset timers after the completion of first cycle if necessary.
Use LEDs as output to test the program.
PLC Program Here is PLC program to Operate 4 Outputs Simultaneously with Time Delay, along with program
explanation and run time test cases.
List of Inputs and Outputs
I:1/0
= Master Start
(Input)
I:1/1
= Master Stop
(Input)
O:2/4
= Master Coil
(Output)
O:2/0
= Output0
(Output)
T4:0
= Output0 Timer
(Timer)
O:2/1
= Output1
(Output)
T4:1
= Output1 Timer
(Timer)
