iec61850 0.3.0

IEC 61850 client for Python, backed by rust_61850 (Rust core).

iec61850

IEC 61850 client for Python — async-first, type-hinted.

Status: early development (v0.3.x). Wired surface:

• TCP connect / disconnect with timeout
• Full typed scalar read/write: bool / int32 / uint32 / int64 / float / float64 / string / timestamp (→ datetime) / quality (→ Quality dataclass) + corresponding writes
• Directory queries: get_server_directory / get_logical_device_directory / get_logical_node_directory(AcsiClass) / get_data_directory
• Typed exception hierarchy (IedError / IedConnectionError / IedTimeoutError / IedDataAccessError / IedServiceError / IedControlError)

Pending (raises NotImplementedError): TLS connect, generic composite read/write, get_variable_specification, reporting (URCB / BRCB), control objects, datasets.

Install

pip install iec61850

Requires Python 3.11+. Wheels published for Windows x86_64 and Linux x86_64 (manylinux 2014).

Quick start

import asyncio
import iec61850

async def main():
    conn = await iec61850.IedConnection.connect("127.0.0.1:102", timeout_ms=5000)
    try:
        status = await conn.read_int32("simpleIOGenericIO/LLN0.Mod.stVal", iec61850.FC.ST)
        vendor = await conn.read_string("simpleIOGenericIO/LLN0.NamPlt.vendor", iec61850.FC.DC)
        quality = await conn.read_quality("simpleIOGenericIO/GGIO1.Ind1.q", iec61850.FC.ST)
        print(status, vendor, quality.validity)
    finally:
        await conn.disconnect()

asyncio.run(main())

Error handling

try:
    conn = await iec61850.IedConnection.connect("10.0.0.1:102", timeout_ms=2000)
except iec61850.IedTimeoutError:
    ...   # 連線超時
except iec61850.IedConnectionError:
    ...   # TCP / OSI stack 失敗
except iec61850.IedError:
    ...   # 其他 IEC 61850 錯誤的 catch-all base

License

Apache-2.0