Please asked me How calculate DCS controller memory.

0 Answers   Yokogawa,

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Hi buddies! my name is sachin and i am working as a electrical and instrumentation engineer in a paper plant. right now i am facing a problem and if someone could help me it will be an immense pleasure to me. i am using AC 800M to synchronise DCS500 drives on paper machine and rewinder.communication is on PROFIBUS and we are using NPBA-01 module to link profibus to DC drives.But these days two of these drives are showing a error named FIELDBUS COMM.TIMED OUT and the drives get tripped.I have changed the NPBA module and PROFIBUS cable.So if anyone can do please help me out with this problem.I'll be highly grateful.

0 Answers  

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what is the difference between(Flame proof/Explosion proof)& Fire proof instruments.Both are same or different & if different in which way because the transmitter which have approved ATEX flame proof enclouser but it use PTPE O ring & PTFE Head Gasket,so its (fire safe/fire proof)????????

4 Answers  

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What types of thermocuple are mostly used?

6 Answers  

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what is the working principle of hydra step(electronic level indicator)?

2 Answers   Bengal Energy, Lanco,

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Can all intrinsic safe transmitters are provided with inbuilt zener barriers? why

2 Answers  

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how many parts of valve positioner?

1 Answers   Kentz,

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one rtd sensor which is connected at middle of distillation column where actual temp. is 100deg but when we tight this sensor at thermowell end it goes down to 90 deg & when remove from the thermowell(but sensor end dipped in well) showing actual reading, what is reason?

3 Answers  

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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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What is the difference between bench set and operating range i control valve?

1 Answers   Descon,

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what is the path to communicate from profi to ofc.what is the means of communication.what is multi cire cable in ofc.

1 Answers  

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How to isolate a DPT from line in the condition that process must not be disturbed,and process is also critical and no bypass is available.?

4 Answers   Descon,

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