Answer / vikash suthar

yes it is possible. I am taliking about the controller and
cards power supply modules.They are always redundunts and
connected through diode so that if one power supply fails
the other can take the charge immediately.so it is possible
to replace one of them in running plant if the other one is
healthy.

if I did short to both AO connections, channel will burn or what? m sure in AI it will damage to channel. But what will happens in AO?

1 Answers  

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What is instrumentation measurement?

0 Answers  

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What is negative range in transmeter?

1 Answers   TCL,

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What is Process portal A(PPA)?

1 Answers   ABB,

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What is the difference between DCS and SCADA?

1 Answers  

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How we can re-range the DP transmitter, range is -0.5 to 2.0bara. new range is -0.5 to 5 bar

2 Answers   Rosemount,

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How does milli volt is created in themocouple?

2 Answers   Jaypee,

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What is 3 selection available when configure the burnout protection for controller

0 Answers   EI Electrotechnical Institute,

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How signals can be taken through modbus?

1 Answers  

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I have observed in field instrumentation work... I remove the fuse of an analog transmitter then it shows 7.75 kg/sq cm (which is practically wrong value)in DCS and when put the fuse it shows 0 in dcs. Then cheach the field transmitter termination and found moister. clean that and then it shows 1.1 kg/ sq cm which is right value. Please describe the above phenomenon.

1 Answers  

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applications of 1-5v and 4-20ma?

4 Answers  

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what does a positioner in control valve ?

11 Answers  

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