Answer / ibrahim s

This is nothing but SCADA(Supervisory Control And Data
Acquisition), this can used to monitor and control the
process variable along with PLC.

Answer / raj anu raj

As the name implies, like a supervisor who supervise his
subordinates functions and control over them.
Particularly in SCADA(supervisory control and data
aquisition)from HMI ie.. simply from monitor screen u can
supervise the various functions in the plant and also
control them by changing set points etc.. .Usualy SCADA
comprises of PLCS(functions as supervisor in auto), a
communication mode to receive data to and fro and a manual
interface ie.. for example graphics to communicate with
the PLC
Regards

Answer / khan

scada is abrreviated as supervisary control and data aqasition where the all data which monitered by the user is collected and aquared.the data can means what ever the set point acc to the program is can changed from it.
although the whole operation is monited by mmi man machine inteface first it send to the control unit then to the fild unit .

what are the different types of terminal lugs used for wiring termination?

5 Answers   Yokogawa,

---

please give me combustion cntrl interlock details? if possidle drawing also?for this one is there any website ?

1 Answers  

---

what is the characteristics of control valve?

7 Answers  

---

what is positive displacement meter.

1 Answers   Takreer,

---

what is different betwen Process zero and atm zero?

1 Answers  

---

What is difference between differential pressure & delta pressure?

0 Answers  

---

Hi my friends Is any one who can assist me in knowing the typical interview questions for system engineer at General Electric pty Ltd

0 Answers  

---

What are the error values can accepted in flow transmitter calibration?could u give any formula for this?

0 Answers   Hamsco,

---

what is the difference between scaler and vector drive

0 Answers   Jindal,

---

any one suggest me how to calculate percentage of air leakage with formula,

0 Answers   SSL,

---

Why mmwc unit is used?

0 Answers  

---

I work on a electronic positioner transmitter 4211 at the field.I connect my multimeter in series to get the current output then I calibrate it to 4ma in 0% of position of the valve and 20ma in 100% position of the valve.My problem is in the field I get the correct output current based on my multimeter but in the dcs they only receive 40% in a output 20ma of this positioner.Then I try to simulate in this analog card and they receive the equivalent percent on the value that I simulated.Is ther any possibility to reset the zero and span of this positioner 4211 fisher.And what other possibility I can do to fixed this.This is my email add ( landicho_randy@yahoo.com )

4 Answers  

---