The Cadis AQUAVISION CONTROL is a module for monitoring and leak detection. It is designed to connect to water meters that have a pulse output and can control motorized shut-off valves to automatically stop water supply in case of a large leak. The module can monitor up to 5 pipes and control up to 3 automatic shut-off valves.
The module can transmit data to a Building Management System (BMS) via Modbus TCP/IP over a computer network or via a Modbus RTU (RS485) connection.
| Device Type | Variants | Modbus TCP (Ethernet) | RS485 | Curtailment |
|---|---|---|---|---|
| AQUAVISION CONTROL Module | Monitors up to 5 water meters and 3 valves | ✅ | ✅ | ✅ |
The Sofar EMS can communicate with the AQUAVISION CONTROL module via either Ethernet (Modbus TCP) or RS485 (Modbus RTU).
Connect a standard RJ45 network cable from your network switch to the dedicated network port. This port is located on the bottom left side of the module housing.
For correct ethernet wiring, follow the guidelines for ethernet wiring.
If a network connection is not possible, wire the RS485 A/B lines from the Sofar EMS to the terminals on the module's main board. The connection terminals are D29 for Modbus A and D30 for Modbus B.
| Device | Sofar EMS model OM1 | Sofar EMS model IG8 | RS485-USB converter | RS485-Ethernet converter |
|---|---|---|---|---|
| Pin 29 (Modbus A) | RS485 A | RS485_POS | RS485 A | TX+ |
| Pin 30 (Modbus B) | RS485 B | RS485_NEG | RS485 B | TX- |
| N/A | RS GND | GND | Not available | G |
Configuration for Modbus RTU is straightforward as the main parameter is fixed:
Based on the driver, the recommended serial settings are:
For Modbus TCP communication, the module must be connected to the local computer network. The module's IP address and network settings must be configured via its touchscreen to match your network.
For the module to register consumption correctly, you must configure the pulse ratio (K-value) for each connected water meter.
You must not connect a second readout system (like a BMS) in parallel to the same water meter pulse output. If this is required, a pulse splitter (e.g., Cadis ref. CA-PULSE-SPL) must be installed first.