GivEnergy CLI

A command-line tool for monitoring and exporting data from GivEnergy inverters over the local network, built on givenergy-modbus.

Requirements

• Python 3.14+
• A GivEnergy inverter accessible on the local network

Installation

uv sync

After uv sync the givenergy-cli command is available at .venv/bin/givenergy-cli, or via uv run givenergy-cli.

Usage

host and port are shared options on the root command. They can also be supplied via the GIVENERGY_HOST / GIVENERGY_PORT environment variables.

tui — interactive terminal UI

uv run givenergy-cli --host 192.168.x.x tui

Live Inverter / Power Flow / Battery panels, a modbus log panel, and a status bar showing connection state and the time of the last refresh. The Inverter panel has collapsible Charge Slot and Discharge Slot sections. The status indicator cycles through Connecting… / Probing… / Reconnecting… / ● Connected / ● Disconnected to show the live transport state; an automatic reconnect is attempted whenever the connection drops.

Key	Action
r	Refresh now (re-reads instantaneous measurements)
Shift+R	Full refresh — also re-reads the holding-register config blocks
l	Toggle the modbus log panel
q	Quit

capture — record wire frames for a bug report

uv run givenergy-cli --host 192.168.x.x capture --output frames.log --duration 60

Connects and records raw redacted Modbus frames for the given duration (default 60 s). Writes one line per frame: a UTC timestamp and the hex payload. The output file is safe to attach to a GitHub issue.

probe — read an arbitrary register range

uv run givenergy-cli --host 192.168.x.x probe --type hr --base 4080 --count 60 --device 0x31

Issues raw Modbus read requests, bypassing the normal capability-driven polling. Useful for exploring undocumented register blocks — e.g. checking whether HR(4080+) holds battery energy totals on AC-coupled models. Requests are split into 60-register chunks automatically; timeouts are reported per-chunk rather than aborting the whole probe.

Option	Description	Default
--type / -t	Register bank: hr (holding) or ir (input)	required
--base / -b	First register address (decimal or 0x-hex)	required
--count / -n	Number of registers to read	60
--device / -d	Modbus device address, decimal or 0x-hex (e.g. 0x11 inverter, 0x31 AC)	0x11

export — dump registers to a portable JSON file

uv run givenergy-cli --host 192.168.x.x export -o plant.json

Connects, runs detect to discover the plant topology, loads the holding-register config, fetches the input registers, and writes every register from every discovered device address. Partial captures are still written on timeout, with a warning.

inspect — render an exported plant

uv run givenergy-cli inspect plant.json

Reconstructs the Plant from the JSON, then prints the Inverter and Battery model fields plus per-device raw register dumps (decimal + hex). No network required.

mock-server — serve a fake plant from recorded captures

uv run givenergy-cli mock-server --capture plant.log
# then, in another terminal:
uv run givenergy-cli --host 127.0.0.1 tui

Replays one or more capture logs as a faithful in-memory plant, answering a real client's detect / load_config / refresh sequence with synthesized, correct-CRC responses — so you can drive tui, export, or probe against it with no hardware. Reads of an absent register bank return the same error shape real hardware uses. Seed files come from the capture command.

Option	Description	Default
--capture / -c	Capture .log file(s) to seed from (repeatable)	required
--bind	Bind address (use 0.0.0.0 to expose on the LAN)	127.0.0.1
--port	Bind port	8899

Environment variables

Variable	Subcommand	Default
GIVENERGY_HOST	all	— (required)
GIVENERGY_PORT	all	8899
GIVENERGY_REFRESH_INTERVAL	tui	15.0
GIVENERGY_LOG_LEVEL	tui	INFO

Project structure

givenergy_cli/
    __init__.py
    __main__.py    — Typer entry point (tui / capture / probe / export / inspect / mock-server subcommands)
    app.py         — Textual TUI app
    capture.py     — frame-capture logic for bug reports
    mock.py        — mock-plant server for offline testing
    registers.py   — export, load, and rich-formatted display of register dumps
tests/
    fixtures/      — anonymised plant JSON fixtures (good + bad-enum cases)

Dependencies

Package	Purpose
givenergy-modbus	Modbus TCP client and data model for GivEnergy inverters
textual	Terminal UI framework
typer	CLI argument parsing
rich	Console formatting for export / capture / inspect output