DevicesWater meter

Cadis water meter

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.

Supported Devices

Device Type	Variants	Modbus TCP (Ethernet)	RS485	Curtailment
AQUAVISION CONTROL Module	Monitors up to 5 water meters and 3 valves	✅	✅	✅

Shelly Relay

Eniris

Eniris Pulse‑based Water Meters

For correct RS485 wiring: Follow the guidelines for RS485 wiring.
If the wiring shown in the table below is incorrect, please let us know.
There is no general consensus in the industry about the usage of A and B for the RS485 polarity, so it may be counterintuitive and opposite of what you might expect for some devices.

Device	SmartgridOne Controller model OM1	SmartgridOne Controller 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

Cadis | SmartgridOne Documentation

Cadis water meter

Supported Devices

On this page

Wiring

Ethernet (Modbus TCP)

RS485 (Modbus RTU)

RS485 Wiring

Configuration

Modbus RTU

NOTE: RS485 Device Addresses

Modbus TCP

Water Meter Setup (Required)

Warning