Comments (3)
Ok, learned that the "write hex" is apparently coupled to commands loaded from csv. As I did not have any csv loaded it errors out. There is also a hex command that puts the value directly on the bus which works as intended. Closing.
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this is a regular Vaillant register write message here:
7015b509050e24007001 / 00
70= source master
15= destination slave
b509= Vaillant register command
05=length
0e=Vaillant register write
2400=register number (0x0024=36)
7001=desired value (0x0170=368)
The two bytes value is in datatype D2C (see here: data types ) and has to be divided by 16 for the real value: 368/16=23 °C
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Thanks @john30
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