Re: [foxboro] Fwd: Message submitted to 'foxboro'
- From: kevin.fitzgerrell@xxxxxxxxxxxx
- To: foxboro@xxxxxxxxxxxxx
- Date: Tue, 18 Jun 2002 07:04:50 +1200
Some other possibilities along the same lines:
HMI
1) Keep AW/WPs in protected area and extend video/keyboard cables to work
area.
2) For longer distances between video/keyboard and AW/WP consider CAT5 or
fibre KVM extenders.
3) Use inexpensive thin clients for the plant floor -- diskless, fanless,
low heat output, either running as an x-terminal or with x-terminal
emulator, or with Citrix.
4) The "Roll Away" silicone keyboards work well in terrible environmental
conditions. They can be easily glued to a plant area work surface with
RTV. They can be used with Sun equipment with a PC keyboard to Sun
computer adaptor (Raritan sells one). They are cheap enough that they can
be thrown away and replaced if they are damaged.
5) Harsh environment touchpads, mice and other pointing devices are
available from a variety of manufacturers, Foxboro sells the Durapoint
devices wired for use with Sun computers.
I/O
1) I/O cabinets can be sealed, just engineer properly for heat load.
Regards,
Kevin FitzGerrell
Systems Engineer
Foxboro New Zealand
------------------------------------
Tel: +64 (9) 573 7690
Fax: +64 (9) 573 7691
"Jones, Charles R.
(Chuck)" To: "'foxboro@xxxxxxxxxxxxx'"
<foxboro@xxxxxxxxxxxxx>
<CRJones@xxxxxxxx> cc:
Sent by: Subject: Re: [foxboro] Fwd:
Message submitted to 'foxboro'
foxboro-bounce@fre
elists.org
18/06/2002 02:59
Please respond to
foxboro
Joen,
I learned of an alternative solution two years ago at the International
Convention from a man from South Africa. Their plant made detergents for a
major manufacturer and I wish that I could remember his name to give proper
credit to him.
As I recall, what his plant does is to use Intel machines running Xwindows
in the harsh environments of the production floor. They cost less than
one-tenth the cost of environmentally-hardened machines. He figured that
even if he had to replace the workstations every year, it would still be
ten
years before he accrued the cost of hardened systems. And at each
replacement, the workstation was upgraded to the latest technology
available
for that cost.
Note that this solution only works in an environment where the workstation
is the only thing that needs protection, and not the environment itself.
This would not work in an environment where the atmospheric dust could be
potentially explosive.
Chuck Jones
Refinery Automation Technologist
A.E. Staley Mfg. Co. -- Lafayette South Plant
765.477.5324 - Office | 877.536.9219 - Pager
-----Original Message-----
From: Duc M Do [mailto:duc@xxxxxxxxxx]
Sent: Sunday, June 16, 2002 9:33 PM
To: Foxboro Mailing List
Subject: [foxboro] Fwd: Message submitted to 'foxboro'
> > Hi guys,
> >
> > I would like to have some info if any of you have DCS operational
> > problems related to harsh environment condition such as severe
> > dust/particulate emmission from the plant and how you guys cope
> > with that
> >
> > Thanks for invaluable information
> > joen
> >
>
>// eompost 3D0D4954:66FB.1:sbkobeb
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