Kaco Inverter Plugin


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


This plugin reads the data from Kaco Inverters, via serial or TCP. Inverter data will be collected to the solar table. By default, it will collected data every 5 minutes, but can collect at a minimum rate of 30 seconds. The plugin will make an attempt of (by default) 3 times to read an inverter, with a default sleep time 0.5 seconds between each read. See the Ardexa documentation instructions for connecting Kaco Inverters via serial line. Data collected is as follows, note that the DC Voltage/Current/Power 3 items may not exist for some inverters):

Status (keyword:)
DC Voltage 1 (decimal:V)
DC Current 1 (decimal:A)
DC Power 1 (decimal:W)
DC Voltage 2 (decimal:V)
DC Current 2 (decimal:A)
DC Power 2 (decimal:W)
DC Voltage 3 (decimal:V)
DC Current 3 (decimal:A)
DC Power 3 (decimal:W)
AC Voltage 1 (decimal:V)
AC Current 1 (decimal:A)
AC Voltage 2 (decimal:V)
AC Current 2 (decimal:A)
AC Voltage 3 (decimal:V)
AC Current 3 (decimal:A)
DC Power (decimal:W)
AC Power (decimal:W)
Cos Phi (keyword:)
Temperature (decimal:°C)
Daily Energy (decimal:Wh)


Arguments are as follows:

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

  • bus_addresses. An Aurora 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 Aurora 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 2

  • --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

Last updated