Re: [foxboro] Why do people use PCs to show DM/FV (Inspired by Dual headedHumm ingbird displays)

This ought to be an interesting discussion :)
------------------------------------------------
1) How are the PCs used?

a.On a scale of 0 to 10 where 0 is never
uses I/A Series Applications and 10 is never
uses non-I/A Series applications (except eXceed of course), where would 
you
rank the use of your PCs?
------------------------------------------------
The plants I'm involved with are probably in the 2 (mostly) to 7 range. 
Most PCs are business desktops that look at DM/FV displays 
occasionally/read-only; a couple are on segregated networks and are used 
for configuration and maintenance troubleshooting.

We do have at least one plant on site here that uses PCs on a private net 
for operator consoles.


------------------------------------------------
2) Why are PCs used?

a. Low-Cost
b. Environmental hardening
c. Remote location hard to reach with a PC(WP?)
d. Dial-up (or VPN or whatever) access from home
e. Lack of space
------------------------------------------------
a, c, and e.

We (and IS) don't want to put a WP on everyone's desktop who might have a 
need to look at a display.  And we don't want to run the nodebus (either 
classic or switched versions) anywhere an operator console is not 
required.  Cost is another issue; the full nodebus license is monetary and 
functional overkill when an extra display is all that is required.  Since 
Sun is now trying to compete with Intel PCs in the workstation market, 
they can't charge usurious fees for OS licensing on WP-class hardware 
anymore.  I haven't seen a lot of difference in the cost of a WP51 and a 
WP70 lately, so I suspect that most of the WP's cost now is I/A software.


------------------------------------------------
3) What other types of HMI (beside WPs) should we be
offering?
------------------------------------------------
Though we haven't used it much, I like the VNC idea too, because the 
client install ranges from zero to one file.  (I haven't noticed that it 
is faster than native X, though.)  I'm not sure how it's gonna work on 
Windows WP/AW hosts, but we don't have to worry about that yet ;)

Corey Clingo
BASF Corp.








"Johnson, Alex (Foxboro)" <ajohnson@xxxxxxxxxxx>
Sent by: foxboro-bounce@xxxxxxxxxxxxx
06/28/2004 12:01 PM
Please respond to foxboro

              To:  foxboro 
              cc: 
         Subject:       [foxboro] Why do people use PCs to show DM/FV (Inspired 
by Dual headed 
Humm    ingbird displays)






If you don't mind, I'd like to ask the community of users about how and 
why
they use PCs to show FV/DM displays. I know that this is not scientific, 
but
I'm curious.




So, if you use PCs, would you please answer a few questions for me?



1)                How are the PCs used?

a.                On a scale of 0 to 10 where

i.      0 is never
uses I/A Series Applications and

ii.      10 is never
uses non-I/A Series applications (except eXceed of course), where would 
you
rank the use of your PCs?



For example, I think a 10 user is an operator console, a 7 or 8 user might
have company specific programs that need to be run on operator console, a 
3
user might be a PC at home used for dial-up support.



2)                Why are PCs used?

a.                Low-Cost

b.                Environmental hardening

c.                Remote location hard to reach with a PC

d.                Dial-up (or VPN or whatever) access from home



3)                What other types of HMI (beside WPs) should we be
offering?





Thanks,



AJ





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Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html
 
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