bitte hilfe mit Modbus problem

[Gast]

Ich habe ein problem mi kommunikation unter mein SDM630 und Modbus, kann jemand helpen?

https://www.loxforum.com/forum/software-configuration-user-interface/81860-sdm630-no-communication-over-modbus

Vielen dank!

[Thomas M.]

maybe you made at wrong connection by mistake?

did you connect the modbus cables on the right clamps?
9 for "A" and 10 vor "B".
the clamp in the middle "13" is not used.

[Gast]

In the loxone modbus extension: I wired "B" to the left terminal, middle clamp not used, "A" to right terminal.
in SDM630: I wired "A" to 9, "B" to 10.

on my SDM630, there's an icon of a telephone which regularly is shown, I assume this is an indicator of trying to communicate?

[Gast]

Fixed!

parity had to be set to "none".
Hope this helps any future people who might encounter this problem.