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</head><body bgcolor="#FFFFFF" text="#000000">Hi Mac and William,<br>
<br>
This is interesting because I was having an issue of the Xanbus network
not seeing the Battery Monitor until I replaced an ethernet cable. My
present theory is that the white ethernet cables being supplied by
Schnieder are marginal. <br>
<br>
Given that many of our systems locate the monitoring components close to
the main battery DC Inverter cables and that the EMF noisy PV charge
controls with their medium voltage DC are also nearby - especially
going through the tight quarters of a MidNite E-panel or equivalent - it
strikes me that inductive currents or EMF noise could be the culprit.<br>
<br>
I'm wondering if for future installs I should just make up my own cables
from shielded CAT6 as a standard practice for all ethernet-based comm
systems? That said I've never had a problem with SMA - only Schnieder.<br>
<br>
Thoughts?<br>
<br>
Best,<br>
<br>
Jeff<br>
<br>
<span>William Miller wrote on 1/31/20 8:15 AM:</span><br>
<blockquote type="cite"
cite="mid:a5ede8a71fe5d6e8ccb6b1fe07894705@mail.gmail.com">
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<div class="WordSection1"><p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d">Mac:</span></p><p
class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p
class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1
lfo1"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"><span
style="mso-list:Ignore">1.<span style="font:7.0pt "Times New
Roman""> </span></span></span><span
style="font-family:"Verdana","sans-serif";color:#1f497d">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\u2019 to avoid
\u201cringing.\u201d Later (after we purchased and replaced cables) we were told
there was no foundation for this claim.</span></p><p
class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1
lfo1"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"><span
style="mso-list:Ignore">2.<span style="font:7.0pt "Times New
Roman""> </span></span></span><span
style="font-family:"Verdana","sans-serif";color:#1f497d">Some
Fluke advanced testers we have looked at have a \u201cbus health\u201d 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.</span></p><p
class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p
class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d">I
wish you good luck in resolving your issue.</span></p><p
class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p
class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d">William</span></p><p
class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p
class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">Miller
Solar</span></p><p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">17395
Oak Road, Atascadero, CA 93422</span></p><p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">805-438-5600</span></p><p
class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"><a
href="http://www.millersolar.com/" moz-do-not-send="true">www.millersolar.com</a></span></p><p
class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">CA
Lic. 773985</span></p><p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p
class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
RE-wrenches [mailto:<a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
moz-do-not-send="true">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On
Behalf Of </b>Mac Lewis<br><b>Sent:</b> Friday, January 31, 2020 6:19
AM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> [RE-wrenches]
Troubleshooting Xanbus</span></p><p class="MsoNormal"> </p><div><p
class="MsoNormal">Hi Wrenches,</p><div><p class="MsoNormal"> </p></div><div><p
class="MsoNormal">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.</p></div><div><p
class="MsoNormal"> </p></div><div><p class="MsoNormal">Maybe there is
another explanation for the AGS defaulting to "Off".</p></div><div><p
class="MsoNormal"> </p></div><div><p class="MsoNormal">Thanks in advance
for your help<br clear="all"></p><div><p class="MsoNormal"> </p></div><p
class="MsoNormal">-- </p><div><div><p class="MsoNormal"> </p></div><div><p
class="MsoNormal"> </p></div><div><p class="MsoNormal"> </p></div><p
class="MsoNormal" style="margin-bottom:12.0pt">Mac Lewis<b><span
style="font-family:"Arial","sans-serif";color:#ff9900"></span></b></p><p><span
style="color:#305a78">"Yo solo sé que no sé nada." </span><b><span
style="color:#686868">-Sócrates</span></b><b><span
style="font-family:"Arial","sans-serif";color:#ff9900"></span></b></p></div></div></div></div>
<br>
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<br>
<div class="moz-signature">-- <br><span>~~~~~~~~~~~<br>
</span>
<div class="moz-signature">
<span>Jeff Clearwater</span><span><span><br>
</span>Village Power Design<br>
</span><span><span><span><a
href="https://www.linkedin.com/in/jeff-clearwater-0622a312/">linkedin</a>
</span></span></span><br>
<span><span><a href="http://www.villagepowerdesign.com">www.villagepowerdesign.com</a></span><br>
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