[RE-wrenches] Troubleshooting Xanbus

[William Miller]

Mac:



1.   We have had this issue for years.  Specifically this affects AGS
units.  We were told that bus cables had to be a minimum of 6’ to avoid
“ringing.”  Later (after we purchased and replaced cables) we were told
there was no foundation for this claim.

2.   Some Fluke advanced testers we have looked at have a “bus health” test
function.  I think this is in the 125B Scope Meter and I see reference to
the function with a BHT190 break out adapter.  The literature indicates
applications on the following bus architectures:  Profibus, Foundation,
Modbus, CAN-bus, AS-i bus and RS-485.  I will leave it to you to research
if this function would be helpful.   BTW, the Scopemeter is about $3K and
hard to get in a hurry.  You could probably rent one.



I wish you good luck in resolving your issue.



William



Miller Solar

17395 Oak Road, Atascadero, CA 93422

805-438-5600

www.millersolar.com

CA Lic. 773985



*From:* RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] *On
Behalf Of *Mac Lewis
*Sent:* Friday, January 31, 2020 6:19 AM
*To:* RE-wrenches
*Subject:* [RE-wrenches] Troubleshooting Xanbus



Hi Wrenches,



Does anyone have a good way to locate intermittent Xanbus issues with
Schneider equipment?  We have a site that has been giving us a lot of
issues.  It seems like the AGS might be dropping in and out and defaulting
to "Off".  It works flawlessly when we are there of course.  Cables are
testing fine.  No other device seems to have these issues.  All of these
cables are factory made.



Maybe there is another explanation for the AGS defaulting to "Off".



Thanks in advance for your help



-- 







Mac Lewis

"Yo solo sé que no sé nada." *-Sócrates*
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