yogokowa field bus system transmitter all's we are geting
IOP fault in Contiunes please help me fine how we can
normal the broblems?
Answer Posted / osagie
IOP Faults are very common in any Yokogawa Fieldbus setup.
As rightly stated in Ans 1, it means Input Open. The idea here is that there is an open circuit somewhere. The circuit here may be the physical circuit or the logical circuit. By logical circuit, I mean the control drawings.
Now lets look are typical scenarios and solutions:
1. Transmitter input over ranged: For a transmitter that is supposed to transmit up to 100%, if its getting a 110% input, it goes on IOP (+) but you will not see the + most times. Under ranged transmitter would give IOP-.
Solution: Get the transmitter input back to the normal range.
2. Consider a control loop with a transmitter input to a controller. whenever the transmitter fails, the controller will give an IOP fault i.e reporting that its input is open - in this case, check the transmitter and possibly change it if bad.
3. Sometime control valves give IOP when they are faulty.
4. Loop component failures can also cause IOP. Check components like the Mega blocks, connectors etc
In general, initial troubleshooting will be re-downloading the control drawing. You can also perform reconfiguration of the Fieldbus devive.
Hope this clarifies.
Osagie.
Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
why I need valve guard and whats different between guard and positioner ??
Explain the working of an enraf level gauge.
What is intrinsic safety mean.
how pressurize drum calibrated ?
what is IEC code in cables & how to selecting cables?
ORP sensor working principle?
how to calculate range of level transmitter?
use of split range ? where it is used ? in which control loop it is used ?
Can Any body tell me how to check Modbus Settings in ER300N L&T trivector meter?
in natural gas indirect water bath heater,how to prevent the problem of backfire from firetube during ignition...becoz of this backfire performance of wbh is going low.
WHAT IS THE CAM POSITION IN CONTROL VALVE POSITIONER ? WHY IT IS USED?
How to calibrate Toxic gas detector?
why we are not using the turbine flow meter in the steam service?
Hello to all....I am an Instrumentation Graduate and i am passed out in this year only.. I am unable to find the job in my core instrumentation.. so any boby tell me how to and where to search the job....please...and also tell me i there are any courses offered in the instrumentation stream so i can do it... you can send your suggestions to my mail-id i.e Ganesh20084u@gmail.com ... please..
what is commisioning procedure,2)what is is the main work in commisioning in the field tx to dcs, plz send me detail