Climaveneta W3000 Modbus Page

Change the setting from to Remote (Serial/BMS) .

: The controller can store up to 200 alarm events, which can be monitored via Modbus for remote diagnostics.

The base W3000 controller typically has the necessary serial port for Modbus RTU. For connecting multiple units to a network or for IP-based communication, the FWS 3000 is the recommended solution. A dedicated "SERIAL CARD MODBUS TCP/IP" may also be an option depending on the unit's configuration.

W3000 (RS-485) → Modbus RTU → Gateway (e.g., Anybus, Intesis) → BACnet/IP/MSTP → BMS climaveneta w3000 modbus

Used for status flags (e.g., Compressor 1 Running status, General Alarm tripped).

When mapping your points, prioritize these high-value registers: Is the chiller Running, Standby, or Off?

: Change the protocol option from proprietary or None to Modbus . Change the setting from to Remote (Serial/BMS)

Climaveneta chiller and heat pump controllers use the W3000 large platform. Integrating these machines into a Building Management System (BMS) requires the Modbus RTU or Modbus TCP protocol. This technical guide covers configuration steps, hardware requirements, parameter mapping, and troubleshooting procedures. Protocol Architecture and Hardware Requirements

For reading digital states (On/Off, Alarms).

The W3000 (including the W3000SE and Large versions) is the "brain" behind many Mitsubishi Electric Hydronics & IT Cooling Systems (formerly Climaveneta). It handles everything from compressor staging to alarm management. To "talk" to it externally, the unit typically requires a dedicated serial interface card, often the . Physical Connection and Setup For connecting multiple units to a network or

Ground Loops: Ensure the RS485 shield is grounded at only one end (typically the BMS controller side) to prevent electrical noise.

Uses a 3-wire RS485 connection (GND, Tx/Rx+, Tx/Rx-). Cable: Twisted and shielded AWG 20/22 cable is recommended.

Set the speed to match your master network (typically 9600 or 19200 bps ).

Once hardware is installed, you must configure the "Supervisor" parameters through the unit’s keypad (W3000 or W3000 Compact): : Set the protocol to "Modbus."

Confirm that changing a setpoint from the BMS successfully updates the setpoint on the local W3000 display screen. 6. Troubleshooting Common Modbus Connection Issues