PLC questions How to calculate cycle time ? Effect of derivative term in PID? How do you tune PID ? How you do Time based logic in PLC? (like every day 11 PM some action has to happen) What are the basic requirements before developing the PLC applications? How much comfortable you are with IEC61131-3 languages ? What is watch dog timer ? SCADA questions What is P&ID? Draw all the symbols you familiar in P&ID and explain ? How you differentiate signal to PLC in a P&ID diagram ? Instrumenation 2 wire Vs 4 Wire Transducer Vs Sensor PLC Vs Safety PLC How to do calibration ? RTD Vs TC RTD measurement ranges ? and different types 1?What would be the OP of RTD signal range TC measurement ranges ? and different types?What would be the OP of TC and signal range
