TriStar Manual

47TriStar MPPT Operator’s Manual

5.2 Morningstar MeterBus

Morningstar’s proprietary MeterBus

protocol allows communication between compatible Morn-

ingstar products. Use a MeterBus

network to:

• display net system data for multiple TriStar / TriStar MPPT 150V systems**

• communicate with a TriStar Digital Meter 2 or TriStar Remote Meter 2

• communicate with a Relay Driver or other compatible Morningstar accessories (see sec-

tion 2.5 for more details)

**A Morningstar MeterBus Hub (HUB-1) and either a TriStar Digital Meter 2 (TS-M-2) or TriStar Remote Meter 2 (TS-RM-2) are

required, not included.

A MeterBus Hub (model: HUB-1) is required for MeterBus networks containing multiple

TriStar MPPT 150V controllers. The ports on the hub are electrically isolated to prevent dam-

age in the event of broken grounds or voltage differences between controllers. Figure 5-1 below

shows an example MeterBus

network with two (2) TriStar MPPT 150V controllers and a TriStar

Remote Meter 2 (TS-RM2).

MeterBus

Network Hub

TriStar

Remote Meter

TriStar-MPPT

Controllers

Figure 5-1. An example MeterBus network.

Uptove(5)controllerscanbenetworkedtogetherwithasinglehub.Multiplehubscanbe

daisy-chained together to allow networks of up to 14 controllers and a meter.

Refer to the HUB-1 and TriStar Meter manuals for more information about Morningstar Meter-

Bus

networking.