.. seo::
:description: Instructions for reading data from a SUN-1000G2 grid tie inverter using ESPHome
:keywords: sun-1000g2, sun-2000g2, sun1000, sun2000, sun-1000gtil2, sun-2000gtil2
The sun_gtil2 component allows you to get voltage, power and temperature readings from your SUN-1000G2
or SUN-2000G2 grid tie inverter. This is done by reading the UART data transmitted from the inverter's
controller board to the display board.
Note
You need to open your inverter to apply this modification. Use at your own risk! If you want to connect your inverter via the (more limited) external RS232 interface you should use the :doc:`Modbus </components/modbus_controller>` component instead.
Pinout of the inverter's controller board
Pinout of the inverter's display board
Simplified connection diagram
As the data is read from the inverter using UART, you need to have an :ref:`UART bus <uart>` in your
configuration with the rx_pin connected to the TX pin of the inverter's controller board. Additionally, you
need to set the baud_rate to 9600.
The inverter will report new measurements approximately every 1.3 seconds.
# Example configuration entry
sun_gtil2:
uart_id: control_to_display- id (Required, :ref:`config-id`): The id to use for this component.
- uart_id (Optional): The UART Bus ID for receiving messages sent from the inverter's controller to the display.
# Example configuration entry
sensor:
- platform: sun_gtil2
temperature:
id: gtil_temperature
name: "Heatsink Temperature"
filters:
- throttle_average: 30s
dc_voltage:
id: gtil_dc_voltage
name: "DC Voltage"
filters:
- throttle_average: 30s
ac_voltage:
id: gtil_ac_voltage
name: "AC Voltage"
filters:
- throttle_average: 30s
ac_power:
id: gtil_ac_power
name: "AC Power"
dc_power:
id: gtil_dc_power
name: "DC Power"
limiter_power:
id: gtil_limiter_power
internal: True- sun_gtil2_id (Optional): Manually specify the ID of the sun_gtil2 instance if there are multiple.
- temperature (Optional): The temperature of your inverter's heatsink. All options from :ref:`Sensor <config-sensor>`.
- dc_voltage (Optional): The voltage of your DC source. (battery or solar panels) All options from :ref:`Sensor <config-sensor>`.
- ac_voltage (Optional): The grid voltage measured by the inverter. All options from :ref:`Sensor <config-sensor>`.
- dc_power (Optional): The inverter's input power. All options from :ref:`Sensor <config-sensor>`.
- ac_power (Optional): The inverter's output power. All options from :ref:`Sensor <config-sensor>`.
- limiter_power (Optional): The power measured by the inverter's "Internal" limiter. All options from :ref:`Sensor <config-sensor>`.
# Example configuration entry
text_sensor:
- platform: sun_gtil2
state:
id: gtil_state
name: "State"
serial_number:
id: gtil_serial_number
internal: True- sun_gtil2_id (Optional): Manually specify the ID of the sun_gtil2 instance if there are multiple.
- state (Optional): The inverter's state. All options from :ref:`Text Sensor <config-text_sensor>`.
- serial_number (Optional): The inverter's serial number. All options from :ref:`Text Sensor <config-text_sensor>`.