Just to be clear the 8-pin RJ 45 cables are not Ethernet. They are Xanbus which is a version of Canbus, a type of serial communication.
I’ve had some trouble shooting of Xanbus where the AGS was intermittent. I happen to have just finished a Radian job and had a bunch of green cables with me. I used those to replace the white cables and never had a problem afterwards. In other cases, I have also made custom cables some very short and I made sure to terminate the last Xanbus connection and I usually use a long wound up cable at the termination point. I also started putting silicone jelly on all connections and that seems to help with longevity. A Canbus protocol analyzer or maybe an active Ethernet tester could help investigate extra difficulty. Good luck! Maverick > On Jan 31, 2020, at 12:19 PM, Jeff Clearwater <je...@villagepowerdesign.com> > wrote: > > Hi Mac and William, > > 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. > > 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. > > 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. > > Thoughts? > > Best, > > Jeff > > William Miller wrote on 1/31/20 8:15 AM: >> 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-boun...@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 >> >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > > -- > ~~~~~~~~~~~ > Jeff Clearwater > Village Power Design > linkedin > www.villagepowerdesign.com > cell - 413-559-9763 > ~~~~~~~~~~~~~~~~~~~~~~~ > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org >
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