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Appendix I - TSMPPT Networking
Figure 2. Dynamic DNS service
Figure2aboveillustrateshowDDNSworks.DynamicDNSserversarenotiedbyacomputeronJack’spri-
vate network whenever the router IP changes. The address: JacksHouse.dyndns.org points to the DDNS serv-
ers which in turn forward the request to the latest IP address of Jack’s Private Network.
Who provides this service and how much does it cost?
We recommend using Dynamic DNS service provided by www.DynDNS.com. It’s free, reliable, and has a
proven track record. However, there are other free DDNS services that will work just as well. Detailed setup
information is available on their websites.
IV. Multi-Controller Networking Options
Two or More TriStar MPPT Controllers
Whenever possible, network multiple TriStar MPPT controllers using Ethernet. This net-
work scheme results in the lowest cost and most control over each controller in the network.
TriStar MPPT controllers that do not have Ethernet ports should be connected via EIA-485 (see
the next section)
Be sure to set the Ethernet Security settings switch (switch #8) to Disable Writes if the Ethernet
network is accessible via the internet.
TriStar MPPT Controller(s) + Other Morningstar Products
A TriStar MPPT 60 can be connected to other Morningstar products on a network using the