plc programs asked in interview Archives

Contacts and Coils in PLC Ladder Logic

The most elementary objects in Ladder Diagram programming are contacts and coils, intended to mimic the contacts and coils of

A wise PLC programmer once told me that the ﬁrst thing any aspiring programmer should learn about the PLC they

Oil and Water Separation Process This is PLC Program for automatic water separation process. Problem Description Implement oil and water

T Flip Flop Logic using PLC This is PLC Program to implement T flip flop. Problem Description Implement T flip

This is PLC Program to control motor speed using VFD drive. Motor Speed Control A VFD drive controls the motor

PLC Program Food Processing Industry This is PLC Program to detect burned chips and remove them by using PLC. Problem

Drain Same Products from Two Tanks This is PLC Program to drain same products from two tanks. Problem Description Two

Alarm Security System This is PLC Program for Alarm Security System. Problem Description Make burglar alarm system program in S7-1200

Alternate Output Circuit This is PLC Program for an Alternate output circuit (with latched function). Problem Description Setting the light

This is PLC Program for Alarm indication in process control. Alarm Indication in Process Control In many industries there are