I have been told by Foxboro that the total number of ECB's per CP40 should
never exceed 120. Our problem is we use a large number of intelligent
transmitters and each intelligent transmitter requires an ECB. If you use
FBM 18's that would mean that the maximum number of FBM's per CP would be 13
(9ECB's per FBM18). I've always been told that a CP40 could handle 48 FBMs
with no more than 24 per fieldbus isolator
The only performance issue I have seen is the Intelligent Field Device
Configurator (IFDC) will not write information to the transmitter.
Has anyone ever encountered this problem and what was your solution?... or
is this really a problem?
If it is a problem would a CP60 help?
Regards,
Michael L. Jaudon
Kerr-McGee Chemical LLC
(662)343-8710
[EMAIL PROTECTED]
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