Hi,

Pl. explain logic of Star-Delta with start & stop push button in Ladder logic.Thanks 

Hello;

There are many ressources on the web to help you out, if you take the time to look for them.

For example, this page from Instrument tools can give you a good start: f you want to follow the logic, you will have to adapt it to your design of the motor starter circuit, and to simatic addressing and instructions.

https://instrumentationtools.com/plc-program-for-star-delta-motor-starter/

Hope this helps,

Daniel Chartier