Answer / greenborhan

All DCS has 2 types of inputs AI (Analogue Input), DI (Digital Input) and 2 types of outputs AO (Analogue Output), DO (Digital Output).

All the inputs and outputs may a contact signal or mA or mV

greenborhan@gmail.com

Answer / faiyaz ahmad

DCS has three input network communication field control station engineer work station
PLC has many input proximity switch push button limit switch
PLC output is motor heater solenoid valve led

Can we use twisted pair cable instead of ethernet for communication?

1 Answers   Yokogawa,

---

what is vfd(variable frequency drive)?type of vfd.

2 Answers  

---

how many parts of valve positioner?

1 Answers   Kentz,

---

Foe selecting control valve if i have the min,normal & max data of flow rate,inlet pressure& outlet pressure,inlet tem.&density than how can i assure that these data are correct,pl. let me know if therew there is any method to check it.& also how we assure that the Cv we get from this data is suitable for valve for controlling require flow.

3 Answers   HPCL,

---

A differential transmitter is calibrated to measure the flow of lquied, explain what wil happen if the fluid is not pure but contains some bubble?

2 Answers  

---

What is trim material . Why it is known as trim.

1 Answers   L&T, LNG,

---

What is input and output of plc & dcs

2 Answers  

---

what is isloted barrier how it works and what are the main purpose.how it make safe area.

0 Answers  

---

can any one help me to get bel probational engineers sample question papers. I have applied for it.

0 Answers  

---

how level can be measured in open tank with reference to pressure

1 Answers   Atul, INOX,

---

What are the materials use for COntrol Valve body?

1 Answers   KNPC, Qatar Petroleums,

---

this site is owned by an nonsense

0 Answers   Bhel, Prolific,

---