GE Inverters

Purpose

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

Usage

The purpose of this plugin is to collect data from GE Solar Inverters via Modbus. The GE_LV5.txt (default) file collects data from GE LV5 Solar Inverters. The plugin uses the Modbus TCP Specification, and collects from TCP connected inverters only. Inverter data will be collected to the solar table, and will be run every 5 minutes, by default. This plugin relies on the Modbus Ardexa plugin. Please be aware that the GE servers may be accessed on Port 503,instead of the normal Port 502. Additionally, the inverters will not always have all 16 string currents connected, so there are some additional config files with different amounts of string currents.

Also note that GE have a unique way of handling negative numbers in 16 bit integers. Rather than using 1 or 2's complement, they use the Signed Magnitude Method as discussed in: https://www.geeksforgeeks.org/representation-of-negative-binary-numbers/. This is handled by this plugin, to show negative numbers. The following inverter data will be collected to the solar table:

Variable                	  	Units
=====================================
Daily Energy                    Wh
Total Energy                    Wh
Total Hours                     h
AC Power                        W
DC Power                        W
AC Current 1                    A
AC Current 2                    A
AC Current 3                    A
AC Voltage 12                   V
AC Voltage 23                   V
AC Voltage 31                   V
Grid Freq                       Hz
Isolation Resistance            Mohm
Heatsink Temp                   °C
Cooling Water Temp              °C
DC Current 1                    A
DC Current 2                    A
DC Current 3                    A
DC Current 4                    A
DC Current 5                    A
DC Current 6                    A
DC Current 7                    A
DC Current 8                    A
DC Current 9                    A
DC Current 10                   A
DC Current 11                   A
DC Current 12                   A
DC Current 13                   A
DC Current 14                   A
DC Current 15                   A
DC Current 16                   A
Fault 1
Fault 2
Fault 3
Fault 4
Warning 1
Warning 2
Warning 3
Status 1
Status 2
Status 3
Apparent Power                  VA
PE Cubicle Temp                 °C
Line Inductor Temp              °C

Arguments

Arguments are as follows:

• endpoint. This is either an IP address like 192.168.1.15

• bus_addresses. The bus address of the inverter(s)

• --port. This is an optional parameter used in an Ethernet gateway, and is the TCP port used for the gateway. Default is 502

• --attempts. This is an optional parameter, and determines how many times to times to attempt to read an inverter value. Default is 1

• --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 0.05