Re: [foxboro] [UCE] Re: FW: More future direction questions.
- From: "Johnson, Alex P (IPS)" <alex.johnson@xxxxxxxxxxxxxxxx>
- To: foxboro@xxxxxxxxxxxxx
- Date: Wed, 12 Oct 2005 16:14:31 -0400
Re: I'm also inferring from this that an ATS cannot connect directly to a V7
switch, but only to a 1x8 backplane.
That is correct. The ATS is packaged as a Z-module, i.e., it looks a lot
like a CP60.
Re: I would think that direct-connect capability to both a V7 switch and a
mesh network (i.e., 4 fiber ports) would be desirable for hybrid systems as
illustrated in Tom's message.
Perhaps, but the vast majority of systems do not have V7.x switches and we
didn't want to require them or require moving to V7.x to use V8.x.
Re: Is it that difficult technically?
It's the normal time/money vs. customer value tradeoff. We built something
that benefits the greatest number of customers at the least cost. The
offered configuration has the same disadvantage for V7.x customers as for
V6.x customers - 2 1x8 slots.
However, it also does not require moving to V7 to get to V8.
Re: Or would you do this instead
This is the end point diagram for a multi-node system moved to the Mesh
Network.
AW (V7 upgraded to V8)
|
V6.x A ----
__|____ATS____|Mesh|____ATS___________
| | |Net | | |
CP CP | | CP CP
| |
| |-- AW/WP V8
| |-- CP270
| |-- CP270
----
Make sense?
Regards,
Alex Johnson
Invensys Systems, Inc.
10707 Haddington
Houston, TX 77063
+1 713 722 2859 (voice)
+1 713 932 0222 (fax)
+1 713 722 2700 (switchboard)
alex.johnson@xxxxxxxxxxxxxxxx
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