⚠️ This package has been renamed to plc-comm-kv-hostlink. kv-hostlink 1.2.1 is the final release under the old name and will receive no further updates. Install the new package instead: pip install plc-comm-kv-hostlink (import name is unchanged).

KEYENCE KV Host Link for Python

Python library for KEYENCE KV Host Link PLC communication.

Supported PLC profiles

The maintained profile table is in PLC profiles. Choose one exact canonical PLC profile from that table.

Supported device types

The shared device and range tables are in the KV Host Link Device Ranges page. Use that page for supported device families, address syntax, and profile-specific notes.

Installation

pip install kv-hostlink

Quick example

import asyncio
from hostlink import HostLinkConnectionOptions, device_range_catalog_for_plc_profile, open_and_connect, read_typed

async def main() -> None:
    catalog = device_range_catalog_for_plc_profile("keyence:kv-7000")
    options = HostLinkConnectionOptions(host="192.168.250.100", plc_profile="keyence:kv-8000", port=8501)
    async with await open_and_connect(options) as client:
        dm0 = await read_typed(client, "DM0", "U")
        print(f"DM0 = {dm0}")

asyncio.run(main())

Documentation

License and registry

Commercial support

If you plan to embed this library in a paid or commercial product, please consider a separate support agreement or supporting the project as a sponsor.

Contact: https://fa-labo.com/contact.html