Standard defaults are usually 9600 or 19200 baud , 8 data bits , 1 stop bit , and No parity . Ensure these match your BMS settings exactly. The Modbus Register Map The Climaveneta W3000 uses standard Modbus function codes:
: Stores up to 200 alarm events with "Black Box" functionality for fault diagnosis and maintenance tracking. User Interface Options climaveneta w3000 modbus