plc ladder logic interview questions and answers Archives

PLC Program for Automatic Liquid Mixing Application

Liquid Mixing Application This is PLC Program for Automatic Liquid mixing Application. Problem Description In many industries, there are lots

Sequential Motor Control This is PLC Program for Sequential Motor Operating System. Problem Description In many industries, there are lots

This is PLC Program for Two ways switch logic for staircase light in house PLC Two Way Switch Logic In duplex

Automatic Lamp Control This is PLC Program for Automatic lamp Control in Godown (Storage Facility). Problem Description In old process,

Parameter Initialization when Power UP This is PLC Program for Automatic Parameter initialization when power up. Problem Description In many

PLC Latching and unlatching Circuit This is PLC Program for Latching and unlatched circuit for output. Problem Description In some conveying

3 Phase Motor Control using PLC This is PLC Program for Forward and Reverse control for 3 Phase Asynchronous Motor.

PLC Conditional Control Logic This is PLC Program for Conditional Logic Circuit Problem Description In Industry or plants, there are

Design an efficient PLC ladder logic program that samples analog input (I:1.0) at the rate of 2Hz and outputs the average

PLC Conveyor Ladder Logic Program Assume there are sixteen stations along a conveyor system. The stations are numbered from 0-15