
34
MS-003650
(Rev B08)
COMMUNICATION OPTIONS
4.3 EIA-485 Device Communication
EIA-485 is a networking standard for serial communication between multiple devices
on a bus. The EIA-485 port on the SureSine inverter is for connecting to one or more
devices on a EIA-485 network through the open standard ModBus™ protocol.
Morningstar EIA-485 devices include the GenStar, TriStar-MPPT-60/M (150 and 600 V)
models, or with other Morningstar products with the RSC-1 Serial-to-EIA-485 Adapter.
The TriStar-MPPT Charge Controller and RSC Serial adapters require an external 12 V
power source to enable the EIA-485 communications. The 12 Vdc Auxiliary Power
feature of 700 W to 2,500 W models can be used, therefore, to power Morningstar
EIA-485 devices in an EIA-485 Network.
Figure 27: EIA-485/RS-232 Communications Adapter (RSC-1)
For more information on EIA-485 networking, refer to the Morningstar Product
Connectivity Manual, Networking & Communications, at
https://www.morningstarcorp.
com/wp-content/uploads/2014/02/MS-Comm-Document-2010.pdf
.
4.3.1
To Connect the SureSine Inverter to an EIA-485 Device
1. Connect the A and B wires from the EIA-485 device to the A and B
terminals on the DC Side of the SureSine Inverter.
2. Connect the other ends of the A and B wires to the EIA-485 device.
Figure 28: Connecting to an EIA-485 Device
Содержание SureSine 1000
Страница 60: ...52 MS 003650 Rev B08 Index Notes...