Refusol Inverters

Purpose

The purpose of this plugin is to collect data from Refusol Inverters.

Usage

This plugin reads the data from Refusol Inverters, via serial or TCP. Inverter data will be collected to the solar table. By default, it will collect data every 5 minutes, but can collect at a minimum rate of 30 seconds due to the slow response of the Refusol protocol. The plugin will make 4 attempts (by default) to read an inverter. The following data will be collected:

Grid Freq       Hz
AC Voltage 1    V
AC Voltage 2    V
AC Voltage 3    V
Temperature 1   °C
Temperature 2   °C
AC Current      A
AC Power        W
DC Voltage      V
DC Current      A
DC Power        W
Daily Energy    Wh
Total Energy    Wh
Status
Operating Time  h
Error

Connection over a TCP Proxy

Some sites that have Refusol inverters connected via a serial line allow access over a TCP Gateway such as a MOXA Nport 5232. In these cases, please ensure that the Packing Length for the TCP server has been set to 24. Also ensure that the correct serial port parameters have been set.

Arguments

Arguments are as follows:

• endpoint. This is either a serial device like /dev/ttyS0 or an IP or DNS like 192.168.1.15

• bus_addresses. An RS485 address in the range 2-63. This can be a hyphenated list like 3-10 or a list like 2,5,7,9

• --port. This is an optional parameter used in an Ethernet gateway, and is the TCP port used for the gateway. Default is 4001

• --attempts. This is an optional parameter, and determines how many times to times to attempt to read an inverter value. Default is 4

• --delay. This is the delay in seconds between inverter send and receive commands, AND if attempts > 1. Fractions like 0.3 can be used. Default is 0.1

• --timeout. This is the read timeout in seconds; or the amount of time to wait for data to arrive. Fractions like 0.3 can be used. Default is 0.1

• --baud. This is the baud rate when using a serial device. The default is 57600