Previous in Forum: Dual Redundant & Hotstandby   Next in Forum: Steam Flow Measurement by Using Ultrasonic
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
3 comments
Rate Comments: Nested
Anonymous Poster

Variable Scan Time

11/15/2010 4:00 AM

How variable scan time is possible in DCS whereas not possible in PLC?
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Orson
Associate

Join Date: Nov 2010
Posts: 30
#1

Re: variable scan time

11/15/2010 4:37 AM

its possible , now all branded plc 's having this variable scanning option . in which plc u have seen this havnt.
Reply
Anonymous Poster
#2
In reply to #1

Re: variable scan time

11/15/2010 5:32 AM

I am keen on knowing how the variable scan is working? Since the controller is only one.
Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#3

Re: Variable Scan Time

11/16/2010 5:59 AM

In the process industries, if it happens in less than 1 sec, it isn't real.

So why is a variable scan time an issue in DCS?

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
Reply to Forum Thread
Have a Different Question?
3 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); Orson (1); PWSlack (1)

Previous in Forum: Dual Redundant & Hotstandby   Next in Forum: Steam Flow Measurement by Using Ultrasonic

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Instrumentation:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (37 right now)
Show Members
Advertisement