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+--- Thread: MODBUS - Can't write on registers (/showthread.php?tid=4858)
MODBUS - Can't write on registers - gdimaria - 03.07.2023
Hi,
I created the attached modbus profiles for a fancoil. I CAN READ but I CAN'T WRITE on the holding registers (from 26301 to 26327).
What is wrong?
Thanks
Peppe
RE: MODBUS - Can't write on registers - admin - 04.07.2023
Incorrect spelling: not writeble but writable
RE: MODBUS - Can't write on registers - gdimaria - 04.07.2023
Ooops.... that's embarassing!
i did the fix, but i still can't write to the logs.
Yet with a modbus tool software I can write in the registers, but in the 0x10 mode: write multiple registers, as reported in the pdf manual.
RE: MODBUS - Can't write on registers - admin - 04.07.2023
See this: https://forum.logicmachine.net/showthread.php?tid=4814&highlight=write_multiple
RE: MODBUS - Can't write on registers - gdimaria - 04.07.2023
The script in the post - I suppose should be put as init script - refers to a tcp modbus connection... I have an RTU. re
And how I can map the registers to knx addresses?
RE: MODBUS - Can't write on registers - Daniel - 04.07.2023
The suggestions is to use "write_multiple": 1 in your profile
RE: MODBUS - Can't write on registers - gdimaria - 04.07.2023
(04.07.2023, 08:20)Daniel Wrote: The suggestions is to use "write_multiple": 1 in your profile
OK Thanks!