Answer / hemant bhati

Modbus is a Modicon bus it doesnt require dedicated
interface card as it required for fieldbus(Profibus) Modbus
can communicate from serial printer port via RS-485 n RS-
232 while Fieldbus can communicate from RS-485 ONLY.

If you calibrate a pneumatic pressure transmitter, how many adjustments are normally necessary or mandatory?

1 Answers  

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Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?

0 Answers  

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What is upsampling and downsampling?

1 Answers  

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what is basic working principle of Governer in power plant?

3 Answers  

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why used three wire in RTD.

8 Answers   BARC,

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What are three main programming in PLC

5 Answers  

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Why we use 3-15 psi air for control valve input?

2 Answers  

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what is see back effect?

9 Answers  

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what is difference between call out and call log

0 Answers   Petro Rabigh,

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what is input and output cards of plc needs to be hot swappable mean

1 Answers  

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An electronic p controller has an input range of 1-5v, and output range of 4-20mA, while testing a step change of 0.4 was applied at the input , the PB setting was 50% ,what should be the change in the output ?

1 Answers   Reliance,

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Exothermic reaction./ endothermic reaction

0 Answers   CCIE,

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