I am working in a process industry, in that there are
several sections devided in the SCADA screens and
individual sections may START independently. But sometimes
i am facing problem i.e, if section 2 Stopped by the
operator immediately Section 1 or Section 3 or Section 4 is
getting stopped can you expain the reason behind this?
Answer Posted / sks
this might be due to 2 reasons :
1)scan cycle of the processor has been increased anyhow as
the Dword value is updated after the signal is processed in
module. this extended scan cycle causes difference of
process values on HMI
2) check LAN ports of all stations and also the patch board,
if there is option for redundancy check the healthiness of
redundancy.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
what are the steps I have to deal with?
How to calibrate Field bus transmitter? procedure ?
What are advantages and disadvantage of the ac supply load cell?
What do you know about gail?
Capacitance, resistance ( colour coding ), parallel & series circuits.
how to measure oxygen which methods are using?
1. For Steam drum level signal, why do we compensate with drum pressure signal? 2.For main steam Flow signal is comensated with main steam temperature signal and main steam pressure signal why?
How ejector(or)evactor air pump is working in thermal power plant?
What is the use of GMV in turbine?
Explain bernoulli’s theorem.
I am having a Phoenix digital to modbus converter. The o/p of the same is connected to flow computer FB407. But the digital signals are updated only after one minute in the flow computer. what may be the cause of delay in communication? Flow computer is having a scanning period of less than 1 sec.
What is wet leg condition and why is it used?
what is the procedure of O2 sensor(ABB) calibration?
how u calibrate sox nox co2 co in cemps?what is opacity n HPm?tell the standard parameters of cems?
1)How many tpes of vibration probe and how many tpyes of vibration. 2)how we can calibrate a vibration probe with tk3 3)what is RMS value in vibration measuring application and how we calculate it.