plc-comm-kv-hostlink 2.0.0

Python library for KEYENCE KV series Host Link (Upper Link) communication.

KEYENCE KV Host Link for Python

Python library for KEYENCE KV Host Link PLC communication.

PLC Comm Family

This library is part of the plc-comm family. See the package matrix for protocol, language, registry, and install-command mapping.

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 plc-comm-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

Page	Use it for
Full documentation site	Unified docs for all PLC communication libraries.
Getting started	Install the package, connect to your PLC, and run your first read/write.
Usage guide	Use the high-level API and common Host Link workflows.
API reference	Find public client methods, helpers, profile APIs, and error types.
PLC profiles	Choose the canonical profile that matches your PLC model and device ranges.
KV Host Link Device Ranges	Check shared device families, address notation, and range tables.
KV Host Link Troubleshooting & Codes	Troubleshoot common port, profile, address, write-permission, and PLC error-code symptoms.
Gotchas	Check whether this library has any current library-specific caveats.
Examples	Run maintained Python samples: samples/high_level_async.py, samples/high_level_sync.py, samples/basic_high_level_rw.py, samples/named_snapshot.py, samples/polling_monitor.py.

License and registry

Item	Value
License	MIT
Registry	PyPI
Package	plc-comm-kv-hostlink

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