# Regin controllers

Most Regin controllers use the same variable list (4.3) Making each variation of a product almost the same from a variable perspective.

Depending on the controller, there is support for up to 4 different heating systems. However, a typical NODA Modbus Gateway only manages one (1) Heating System.

A NODA Modbus Gateway Addon is required to be able to read Discrete Inputs from the Regin controller. Along with the support for watchdog/failover functionality.

Both Modbus TCP and Modbus RTU are supported with the NODA Modbus Gateway Addon

## Getting the version information

First, ensure that you are on the start page to get the version information from a Regin controller.

Then Press the Right button (arrow right) three (3) times to reach the Program details. Here you will find a version string in the format X.Y-x-y, with a date string. At the bottom of the screen, you will see a serial number.

Press the Right button (arrow right) twice (2) to reach another version information screen. Here you will find something along the line of EXOreal C and a version string in the format X.Y-x-y.

## Exigo Ardo

ModelSupportedImplementationRegin documentation
HCA152W-4✅ YesClick for detailsExigo v4.3
HCA152DW-4✅ YesClick for detailsExigo v4.3
HCA282DW-4✅ YesClick for detailsExigo v4.3
HCA283WM-4✅ YesClick for detailsExigo v4.3
HCA283DWM-4✅ YesClick for detailsExigo v4.3

## Exigo Vido

ModelSupportedImplementationRegin documentation
HCV191DW-2✅ YesClick for detailsExigo v4.3
HCV192DW-2✅ YesClick for detailsExigo v4.3
HCV203DWM-2✅ YesClick for detailsExigo v4.3