Re: [foxboro] Foxboro SIL Rating

Foxboro's sister company Triconex TRICON can easily be integrated into
existing or new Foxboro IA systems, and the Triconex Tricon is a world
leader in ESD systems. The following is from Triconex website
www.triconex.com regarding SIL:

Very high safety integrity -- With its TMR architecture and high diagnostic
coverage, the TRICON system achieves Safety Integrity Level 3 as defined in
the IEC 61508 Draft Standard on Functional Safety. TRICON systems are also
certified by TUV for safety related operation in applications requiring the
German Safety Requirement Class 5 and 6.

Contact your Account Manager to learn more about Triconex seamless interface
into IA.

Best regards,

Mark V. Urda

Synergy Systems Inc.
528 West 5th Avenue
Naperville, IL 60563

phone:   630-778-1960
fax:       630-778-7926
cell:      630-248-9382

-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx
[mailto:foxboro-bounce@xxxxxxxxxxxxx]On Behalf Of Ghodhbani, Hafedh
Sent: Sunday, April 28, 2002 6:15 AM
To: Foxboro@xxxxxxxxxxxxx
Subject: [foxboro] Foxboro SIL Rating



Gents,
As we all know, the Foxboro system is not certified for
any SIL (Safety Integrity Level) rating. This means that : If we would like
that our safety functions are SIL rated, so a new certified ESD System is to
be installed.
Foxboro system needs to be used only for control logic.
The above situation generated long discussions, essentially when SIL study
was carried out for new plant extention.
I am very concerned to know if you faced such situation. How did you dealt
with it?

Note: To know more about SIL Rating, see IEC 61508.


Hafedh Ghodhbani
Senior C&I Engineer
British Gas.
Tel: 00 216 74 259 250

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