Interested to Buy Any Domain ? << Click Here >> for more details...
can we control operation of PLC from operator station?
- 3 Answers
- 5993 Views
- I also Faced
- E-Mail Answers
Answer Posted / nilesh
Question not clear.
1.PLC has its own controller which execute the
program.Before every program run PLC read the input and
after program execution generate output accordingly.
2.If PLC I/O need to be control from operator station (
DCS/SCADA) then PLC need to be connected to OS through
serial link/Ethernet
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.
How to calibrate an pressure gauge with yantrika test bench?
How to control flow variations in magnetic flow maters..... When i will provide proper earthing?
give eg of how I/P is used in control loops
I have got a call of IOCL interview for projects having 2yrs experience. What sort of questions should I expect in the interview?
A length of steel pipe is used to carry sea water to a desalination plant. An adequate corrosion allowance must be specified and indicated in the piping specification, which affects the _________________________ of the pipe
where cascade loop use ?
Explain the working of an electronic level troll.
1. what is modbus cable? 2. what kind of communication we are using for the interface of DCS, ESD and Third party cabinets? 3. What is serial communication and peer to peer communication?
Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =
can anyone can let me know in Eurotron Micro cal 2+ calibrator in milli amps source mode we are not able to get 20 milli amps output it only produces 1.52 milli amps out, but display shows increase in milli amps , and err6 displays, let me know how to remove the err 6.
Explain PID controller tuning & any one method used for it.
what is the vital subject for scoring bhel exam&what is the question pattern
what is installation and commissioning of (fat & sat) of power plant dcs ? this question keeps in desirable conditions of one company .
Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.
