Answer / samer al-essa

I think the serial link it just general word, the MODBUS is
a protocol only which was developed by MODICON for their
own PLC, then it become a open stander for the open
communication

Answer / nitin

Modbus allows for communication between many devices
connected to the same network, for example a system that
measures temperature and humidity and communicates the
results to a computer. Modbus is often used to connect a
supervisory computer with a remote terminal unit (RTU) in
supervisory control and data acquisition (SCADA) systems.

what is the advantage of submersible level transmitter compare to ultrasonic level transmitter?

0 Answers  

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why we are using pnp npn for sensors is there any other type?

1 Answers   CGL,

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Why we used cage in control valve?

8 Answers  

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suggest a sensor to measure rapidly varying temperature?

1 Answers  

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can we change the range of 3151 model level transmitter of rosemount make? present calibration range is 1000mmwc and want to change it to 2000mmwc

4 Answers  

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how to calibrate TT transmitter

3 Answers  

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Can a pneumatic control valve work without positioner?

4 Answers   SMC,

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Explain about 4 wire instrument concept & tell about its wiring fron sensor in Field to PLC panel.Explain with an example?

3 Answers   IOCL,

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hi am durga, i just now completed my eie [2009] , can anyone please guide me what r courses i need to join to enter into core company

6 Answers  

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IF TX SHOWS SLOW RESPONSE, WHILE A CLOSE LOOP AND WHEN WE PUT THE CONTROLLER ON MANUAL THE PROBLEM RECTIFIED, SO WE CAN SAY THE PROBLEM IS IN

1 Answers   IFFCO,

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what is PM/CM/RCM?

2 Answers   Emco,

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please help me to get the below mentioned quires,which i have to submit for my client.[INSPECTION TEST PLAN] 1]I.T.P for Calibration of all instrument. 2]I.T.P for SS tubing. 3]I.T.P for Fire & Gas devices. 4]I.T.P for CCTV & telecommunication. 5] I.T.P for loop checking.

1 Answers  

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