Climaveneta W3000 Modbus File

Modbus addresses can be 0-based or 1-based. If all data seems shifted by one position, adjust your BMS register addresses up or down by 1.

1 or 2 stop bits (usually 1 stop bit if parity is used; 2 if no parity). Modbus Address: Software selectable from 1 to 247. Modbus Function Codes and Register Structure

Integrating and Managing Climaveneta W3000 Controllers via Modbus climaveneta w3000 modbus

What or Master controller are you trying to connect the chiller to?

if you want the BMS to control the unit rather than just monitor it. Modbus Mapping & Data Modbus addresses can be 0-based or 1-based

The SEQUENCER group control system provides an intermediate solution, managing up to five Climaveneta air conditioning units. It supports Modbus, LonWorks, and Bacnet protocols for connection to the BMS system.

More advanced integrations allow setpoint adjustments. A BMS can remotely change the chilled water leaving temperature, enable/disable individual compressors, or switch between Local/Remote/BMS control modes. Modbus Address: Software selectable from 1 to 247

Assign a unique Modbus slave ID to the chiller via the onboard W3000 keyboard/display menu. Ensure no other device on the network shares this ID.

To establish communication between your Master device (such as a PLC, SCADA, or BMS controller) and the W3000, you must align the physical network settings. Physical Wiring (Modbus RTU)

: Uses proprietary algorithms to optimize plant performance, minimize temperature oscillations, and equalize compressor run times (FIFO). Advanced Monitoring

Without a register map, you are flying blind. Climaveneta provides a specific document titled "Modbus Communication Protocol for W3000 Series" . Here is a simulated example of typical registers (always verify with your unit’s manual as firmware versions change):