Profiles

Use one canonical profile in plc_profile for each connection. The profile selects the SLMP frame type, access mode, and device-range catalog.

Profiles

Canonical profile	Human label	Frame	Mode	Notes
melsec:iq-f	MELSEC iQ-F	3E	Legacy ql	X/Y text is octal.
melsec:iq-r	MELSEC iQ-R	4E	iQR iqr	X/Y text is hexadecimal.
melsec:iq-l	MELSEC iQ-L	4E	iQR iqr	Use for MELSEC iQ-L targets.
melsec:mx-f	MELSEC MX-F	4E	iQR iqr	Use for MELSEC MX-F targets.
melsec:mx-r	MELSEC MX-R	4E	iQR iqr	Use for MELSEC MX-R targets.
melsec:qcpu	MELSEC QCPU	3E	Legacy ql	Legacy Q CPU profile.
melsec:lcpu	MELSEC LCPU	3E	Legacy ql	Legacy L CPU profile.
melsec:qnu	MELSEC QnU	3E	Legacy ql	QnU profile.
melsec:qnudv	MELSEC QnUDV	3E	Legacy ql	QnUDV profile.

How to select

import asyncio

from slmp import SlmpConnectionOptions, open_and_connect, read_typed


async def main() -> None:
    options = SlmpConnectionOptions(host="192.168.250.100", port=1025, plc_profile="melsec:iq-r")
    async with await open_and_connect(options) as client:
        value = await read_typed(client, "D100", "U")
        print(f"D100={value}")


asyncio.run(main())

Profile-specific cautions

Canonical profile	Caution
melsec:iq-f	Frame 3E, legacy mode. DX and DY are not valid. X/Y addressing is octal.
melsec:iq-r	Frame 4E, iQR mode. X/Y addressing is hexadecimal.
melsec:iq-l	Frame 4E, iQR mode.
melsec:qcpu	Frame 3E, legacy mode.
melsec:lcpu	Frame 3E, legacy mode.
melsec:qnu	Frame 3E, legacy mode.
melsec:qnudv	Frame 3E, legacy mode.
melsec:mx-f	Frame 4E, iQR mode.
melsec:mx-r	Frame 4E, iQR mode.