Re: [foxboro] FBM 233 to Controllogix question
- From: <Jack.Easley@xxxxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Mon, 26 Jan 2009 11:32:07 -0600
FYI,
We have a similar, if not the same, issue here with our one installation
of Redundant FBM233s to Controllogix PLCs. It happens several times a
week and is temporarily fixed by taking the FBM233(s) offline, then
online. We do get System Monitor indication of failure in all cases.
Sounds like this is a real Foxboro bug, not an installation problem.
Anybody contacted Foxboro to resolve this as yet?
Jack Easley
Sr. I&C Technician
Luminant Power, Martin Lake Plant
Phone 903.836.6241
jack.easley@xxxxxxxxxxxx
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of mike kessler
Sent: Monday, January 26, 2009 11:16 AM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] FBM 233 to Controllogix question
David,
Did you manage to resolve this issue? I am having similar issues with an
installation which has hung 3 times since implemented in September. The
system is lightly loaded <30 tags. I'm talking to two controllogix
PLC's.
Here's the rub. The points don't go cyan, but they stop updating so
everything looks OK from an operator's and System Monitor's point of
view.
I will implement a watchdog alarm to let the operator know it's time
reset the FBM233 from system management to re-start communications.
mk
David Johnson wrote:
> Hi all,
>
> I am working with a customer running a fault tolerant connection
> (FBM233) to fault tolerant controllogix processors using Foxboro's
> ethernet IP driver. We started with an older version of the driver,
> but quickly had field service upgrade everything to the latest back
> in March. Everything will work for several (many) weeks and then all
> of the blocks being passed to and from the gateway will smurf at the
> same time. We are having to re-boot the CP to clear this condition
> (it might be enough to re-download the fbms and go off line and back
> on-line, but they haven't tried that when the crisis occurs). We are
> not adding or deleting any blocks in the configuration, and to the
> best of my knowledge the primary and secondary controllogix modules
> are not swapping, neither are the primary and tracker FBMs swapping
> (again, as far as I can tell.) In other words it appears to work
> until it quits. When it is working none of the points appear to be
> smurfed and everything going to/from the PLC looks like a valid
> controller tag. The time interval between failures is not constant,
> but they have seen this occur 3 times in the last 5 months.
>
> The data load is reasonably light, only 262 controller tags. The ecb
> 201 has the timeout set at 5 seconds, which should be plenty of time
> if there is a network problem that corrects itself.
>
> So I was wondering if anyone else has seen this or knows of issues
> that might cause this performance issue on the FBM233 with EthernetIP.
>
> Thanks,
> David
>
>
>
>
>
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