[RE-wrenches] Maximum Devices on Combox

[Jason Szumlanski]

I'm trying to decipher why an existing system installed by others has three
Comboxes. There are 4 XW+, 9 MPPT80, and an AGS. That sounds like 18 Xanbus
devices, so I can't figure out why they used two slaves (one for XWs and
AGS and the other for MPPT) and a third combox as master. The master has
never aggregated data properly.

I'm thinking of scrapping everything and just using a single Conext Gateway.




On Fri, Nov 1, 2019 at 11:19 AM Dave Angelini Offgrid Solar <
offgridsolar at sti.net> wrote:

> Hi Jason,
>
> The limitations are basic canbus limits. xanbus is very similar. In very
> large clusters, in an XW system comboxes are master slaved to get more
> devices. Xanbus devices are also not just one type. In other words an XW+
> is 2 devices and a mppt is one device. Also the overall length of the
> wiring is critical as in canbus. Building a large system?  Time to read the
> tech notes on the Schneider website. What are you trying to design please?
>
> *Dave Angelini Offgrid Solar
> "we go where powerlines don't"
> http://members.sti.net/offgridsolar/ <http://members.sti.net/offgridsolar/>
> e-mail  offgridsolar at sti.net <offgridsolar at sti.net>
> text 209 813 0060*
>
> On Fri, 1 Nov 2019 07:26:59 -0400, Jason Szumlanski <
> jason at floridasolardesigngroup.com> wrote:
>
> The Conext Combox manual states:
>
> Max. number of Xanbus
> devices: Up to 20 (depending on the device type)
>
> Does anyone know what "(depending on the device type)" means? What are the
> actual limitations?
>
>
>
> Jason Szumlanski
>
> --
>
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>
>
>
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