Answer Posted / anusree

i) Cyclic Execution
ii) Event driven Execution

anybody having Qatar Petroleum questions for instrument Technician offshore ....please send me

6087

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Q- Control problem are mainly classified in _____ types. a-)4 b-)3 c-)6 d-)nono of these Few of them i know is 1- regulator type problem (eg- Air conditioner) 2- tracking problem (eg missile trcking problem) 3- sybernatics 4- optimal control problem

2172

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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.

2241

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how to work MIL contol valve posistioner ?

2193

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What are continuances of connecting earthing and shield of branch cables (instrument to Junction box), at the same earthing pot provided on JB? Is it ok, or may produce some problem? 

2530

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key exchanges in wpa,wpa2,tls

1980

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Reason for capillary type dp level transmitter fluctuation

2022

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typical loop drawing of a simple feedback control comprising of one transmitter and one control

2037

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Who to difference between analog in & analog out in dcs?

1739

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while am calibrating Drager polytron 2IR flame gas detector occured non zero status.how can i get zero status?

2246

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I want to know about DDCMIS in detail ? please explain it. Also give name of reference books in which it is explained in detail in very simple manner.

3905

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How we calculate orifice plat size???

1573

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What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).

2186

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Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.

1922

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can we create an interrupt in plc through scada?

2414

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