[foxboro] Serial Communications to Spec200, SMS satations vs. Foxboro computer gateways

In an attempt to migrate our DEC VAX to a new HP Itegrity server (Itanium
Open VMS) we have found it extremely difficult to interface to the Foxboro
Spec200 DCS.
To that end, we have heard of several instances of the foxnet
communications from a supervisory level 2 computer system interfacing to
SMS stations via serial communications  for setpoint downloads and actual
data uploads.  We are looking for detailed information as to how this was
accomplished including protocol, device settings (baud rate, parity, data
bits, stop bits...)  Any information on this subject would be greatly
appreciated.

If known, we would also need to know what changes would be required on the
SMS stations such that the stations would recognize this new communications
path as the primary communications method.

Thanks in advance,

Tim Johnson
United States Steel - Great Lakes Works
Steelmaking, Level 2 Plant IT Services
Phone (313) 749-3380
Steel Com  8-466-3380
Fax     (313) 749-3979
 
 
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