In the M090 firmware V20, the error in ballast on/off control using registers 177 – 182 was fixed. Previous versions showed unreliable functionality and the written values were replicated in other registers. The new firmware can be uploaded over the M090 web pages. After device restart, this function will work properly.
The new firmware can be downloaded here.
We are sorry for potential problems. Contact the Domat Control System technical support, firstname.lastname@example.org, in case of questions.