I have a 2-3 installations right now where Modbus send commands dont work at all to control heating.. The same program/file i use on a old i3pro (1.0.8:10187) and it works without problem. When i use the same file in a version 1.1.9:12918 nothing happends at all.
Nothing is changed in installations but i think that i3 pro has auto updatet and afterwards its not possible to control heating
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