We second that emotion (I'll be 70 before I buy a '70 :-)....
We are currently in a similar situation trying to integrate some devices via an
OPC server, and looking at the 3rd-party approach as well. I like the
"super-integrator" (CP60 with Ethernet comms) idea as well, although one of
those will probably never work for OPC.
We had I/O scan overruns on all 3 of our AB Integrator 30s. I backed off the
scanning of most ABSCAN blocks on them to 2 secs or slower, which fixed the
problem on 2 of them, but not on the third. I tried phasing out the points on
the third, but changing the phase caused the ABSCAN blocks to smurf, so we had
to punt on that (we sent a saveall to TAC and they were able to change phases
with no problem...sigh). I can't understand the nature of the scan overruns, as
we are not scanning that many points.
It's too bad, really, because I like the transparency the Integrator provides.
The points appear to the operator just like a CP, so you don't have any training
issues - as you might, say, with an all-HPM Honeywell TDC system with a PLC
Gateway. But our crusty old PLC Gateways can scan hundreds of points per second
- to the bandwidth limit on the A-B DH+ - without problems. Alas, I cannot say
that about Integrator 30s.
Corey Clingo
Sr. Engineer
BASF Corporation
"Stear, Bo" <[EMAIL PROTECTED]> on 09/14/2001 09:21:38 AM
Please respond to Foxboro DCS Mail List <[EMAIL PROTECTED]>
To: 'Foxboro DCS Mail List' <Foxboro
cc:
Subject: RE: PLC Question
Hear Hear on the "70" bit...
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