Answer Posted / m.mohan

all are digital signals,hence DO or DI

ACTIVATED - GIVES O/P 1

NORMAL IT GIVES 0. Whatever we required, we can changes
the o/p.

abt MOS panel

In a industry having a lot of trip logic for
safety purpose or suitable process also.incase the txr or
further inst will make it a problem or mismatching value,we
would make it a loop for avoid trip conditions,after find
out& rectify it.In that operation can do it in a MOS
panel... simply change the selector switch,after take out
the job

i am having information technology branh ....... can i prepare for psu exam

2212

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State bernoulli’s application.

1138

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how can leve transmetter calibate in feild .and also put cv and flow plz .....

2236

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Yokogawa CENTUMVP R6.09 unable to download to Engineering Station with ExaOPC R3.75 The issue is when I try to download the common project section to the Engineering Station (STN) from the HIS in System View, it is unable to connect. The error displayed is: WARNING: Could not connect to equalize destination. (7001) Retrying. Number of retries = 0/1 ERROR: LdXopsLoadMain: connect error 10060 ERROR: Processing terminated due to connection error. (7002) Equalization end with errors. STN0149 ---- ERROR = 2 WARNING = 1 ---- Background: >Updated the ExaOPC software on the STN from 3.60 to 3.75 >STN operating system is Windows Server 2008 R2 >HIS operating system is Windows Server 2016 Stanard Solutions attempted include: >Ensuring all IP addresses are correct and all networked devices can be pinged. >The ability to ping a device using its host name from another device ( from HIS) >Ensure both devices firewalls are disabled. >The antivirus installed on the STN is disabled. >Ensuring both devices are within the same workgroup. >Added both devices to each other's Host and LMHost files. >Running IT Security tool after changing any administrative settings.

2187

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diff between neutral ,ground,phase , earthing and shielding?

2287

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A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.

2170

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how to calibrate Necleuonic level transmitter.?

2104

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1.what is controller proportional gain 2.what is the controller intergral action time. 3.A proportional plus derivative controller that has a proportional band of 20% and a derivative action time of 0.1 minutes. Construct the shape of the output waveform for the triangular input if the input rises and falls at the rate of 4 units per minute.

2677

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Explain the working of an electronic level troll.

1081

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3. Differentiate between ultrasonic flowmeter and radar type flow meter.

2945

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What is instrumentation control?

1151

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What is heating effect?

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What is Span Error

685

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Can anyone send most commonly asked interview question in Oil & Gas industry

2243

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OBJECTIVE TYPE QUESTIONS OF ANALYTICAL INSTRUMENTATION

10703

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