I sense the the concerned tone of Steve's reply. I am not trying to denigrate
Foxboro or the Micro IA product for the sake of being negative. I merely
relayed what our experience was with the product.
I did not say that the product was not _designed_ to support writes. I said
that the write functions were sketchy, because they failed to work about 50% of
the time. This was despite usage of the appropriate special I/O blocks.
If Foxboro tech support themselves A) can't make it work and B) told us as much
and C) could not fix it, perhaps the light of inquiry should be focused on the
product, and not its unsatisfied users.
There is yet one more item of note regarding the experience I described with the
Micro IA-A/B Ethernet interface. Foxboro was so embarrassed at the product's
failure at our site that they swapped out the Micro IA/AW51/Ethernet system for
a full-on, total nodebus system consisting of AW51-E, full nodebus, 1x8 racks,
fiber optic nodebus extension, AB Station to talk to the A-B, and all required
cables, software, and licenses. This exchange was done as an even swap at no
additional cost, so in effect we traded in a Ford Escort for a Mercedes Benz...
at the behest of the car dealers themselves.
Had the issue been one of improper implementation, I doubt that Foxboro's sales
department would have approved of the swapout.
As I mentioned in my earlier message, I do not know if Foxboro has fixed the
problem. They may very well have done so, and thus I did not counsel the
original commentator to avoid Micro IA.
This list is intended for the exchange of experiences and knowledge concerning
Foxboro automation products. I feel that the information I supplied fits that
intent.
Mike Adams
Mitsubishi Polyester Film, LLC
Greer, SC
From: "Golemme, Stephen" <[EMAIL PROTECTED]> on 09/18/2001 05:49 PM GMT
Please respond to "Foxboro DCS Mail List"
<[EMAIL PROTECTED]>
To: Foxboro DCS Mail List <[EMAIL PROTECTED]>
cc: (bcc: Mike USA9192 Adams/MFAP/USA)
Subject: RE: PLC Question
As a matter of record, please be aware of some facts about Micro IA comm. w/
AB Ethernet:
1. The station image for Micro IA communicating w/ AB Ethernet has just
been released this month. Note, any prior release of this SW was either a
Beta image or other.
2. Micro IA w/AB-Eth supports both reads & writes.
3. There are specific I/O blocks that must be used to input/output data
across this link. Reference B0193YQ for a description of these blocks.
Product Testimonial:
I was personally involved w/ an application Micro IA w/AB-EthNet - the Micro
IA had over 2100 blocks installed and running - this resulted in a station
loading of approx. 45% (8mb proc card in Micro)
FYI
Stephen Golemme
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Sunday, September 16, 2001 12:41 PM
To: Foxboro DCS Mail List
Subject: RE: PLC Question
>> 4. Micro I/A with AB Ethernet interface.
>This was actually something I was very interested in until I found out the
>true performance and it isn't much better than the AB30. I would still end
up
>with many stations.
We tried the Micro I/A w/ AB Ethernet interface about 9 or 10 months ago.
It
handled reads fine, but writes were sketchy at best. I messed with it for a
long time thinking I was overlooking something. After some serious
heart-to-heart w/ Foxboro tech personnel, they admitted that the writes
never
worked properly for them either and they had no fixes for it.
I do not know if the problem has been fixed since then.
Mike Adams
-----------------------------------------------------------------------
This list is neither sponsored nor endorsed by the Foxboro Company. All
postings from this list are the work of list subscribers and no warranty
is made or implied as to the accuracy of any information disseminated
through this medium. By subscribing to this list you agree to hold the
list sponsor(s) blameless for any and all mishaps which might occur due to
your application of information received from this mailing list.
To be removed from this list, send mail to
[EMAIL PROTECTED]
with "unsubscribe foxboro" in the Subject. Or, send any mail to
[EMAIL PROTECTED]
-----------------------------------------------------------------------
This list is neither sponsored nor endorsed by the Foxboro Company. All
postings from this list are the work of list subscribers and no warranty
is made or implied as to the accuracy of any information disseminated
through this medium. By subscribing to this list you agree to hold the
list sponsor(s) blameless for any and all mishaps which might occur due to
your application of information received from this mailing list.
To be removed from this list, send mail to
[EMAIL PROTECTED]
with "unsubscribe foxboro" in the Subject. Or, send any mail to
[EMAIL PROTECTED]
-----------------------------------------------------------------------
This list is neither sponsored nor endorsed by the Foxboro Company. All
postings from this list are the work of list subscribers and no warranty
is made or implied as to the accuracy of any information disseminated
through this medium. By subscribing to this list you agree to hold the
list sponsor(s) blameless for any and all mishaps which might occur due to
your application of information received from this mailing list.
To be removed from this list, send mail to
[EMAIL PROTECTED]
with "unsubscribe foxboro" in the Subject. Or, send any mail to
[EMAIL PROTECTED]
