Draw a ladder diagram to perform the following sequence Star

Draw a ladder diagram to perform the following sequence: Start A rightarrow (until S2) Delay 2 seconds B rightarrow (until S5) Delay 1 second B leftarrow (until S4) Repeat 3 times A rightarrow (until S3) B rightarrow (until S5) A leftarrow (until S2) B leftarrow (until S4) A leftarrow (until S1) Stop

Solution

A programmable logic controller, PLC, or programmable controller is a digital computer used for automation of typically industrial electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or light fixtures. PLCs are used in many machines, in many industries

outputs are

for line switch 2 selenoid B

swith 3.....selenoid A

switch 4 Selenoid B

siwtch 4....selenoid A

Ladder logic is a programming language that represents a program by a graphical diagram based on the circuit diagrams of relay-based logic hardware. It is primarily used to develop software for Programmable Logic Controllers (PLCs) used in industrial control applications