Product Specifications

Morningstar USB MeterBus Adapter

The USB MeterBus Adapter (model: UMC-1) converts the Morningstar

MeterBus RJ-11 electrical interface to a standard USB 2.0 interface. This

allows communication between a PC and Morningstar charge controllers or

inverters that have a MeterBus connection, but no serial or other

communications port. This includes the Sunsaver MPPT, SunSaver DUO,

and SureSine products. The UMC-1 is required for:

Notes:

1) 4-conductor or 6-conductor telephone cord is

acceptable

2) The UMC-1 is fully opto-isolated. USB electrical

ground is NOT the same ground as RJ-11 / controller.

MODBUS documentation including register locations, scaling, and

definitions can be found on Morningstar’s website at:

www.morningstarcorp.com

MS-001373 04/28/2015DS

USB B to USB A cable

(1 meter, included)

RJ-11 telephone cable

(1 meter, included)

Morningstar Charge Controller or

InverterPC or

party hardware

Wiring Diagram

UMC-1

IMPORTANT!

No software driver included.

Download the latest USB

driver on our website:

www.morningstarcorp.com/support

 Programming custom charging set-points

 Logging data using Morningstar’s MSView PC software

 Communication with any 3rd party hardware that supports

MODBUS™ communication.