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Widget Request — VRV / VRF Control Widget - Printable Version

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+--- Thread: Widget Request — VRV / VRF Control Widget (/showthread.php?tid=6234)

Widget Request — VRV / VRF Control Widget - savaskorkmaz - 02.01.2026

Hello,
We would like to request a modified version of the existing Thermostat Widget, designed specifically for VRV / VRF air-conditioning systems.
VRV / VRF systems are the primary heating / cooling solutions used across the Mediterranean region and many nearby countries, and they dominate most of our smart-home projects. Because of this high usage, a dedicated widget is extremely valuable for our installations.
I have described the required widget parameters below, and I have also attached a visual mock-up showing the configuration layout and options for Visu Admin.
Main Differences from the Standard Thermostat Widget
  1. “Force on when changing mode or setpoint” option will not be included.
Mode Selection Section
If Show Mode Selection is enabled, the Operation Modes section becomes visible.
There will be two selectable mode formats:
  • 1-Bit Operation Mode
  • 1-Byte Operation Mode
1-Bit Operation Mode
  • The Reverse Cooling / Heating option becomes active.
  • Depending on the value (0 or 1), heating and cooling states will be reversed.
This is necessary because some installations use inverted logic.
1-Byte Operation Mode
Users will be able to manually enter values for each mode:
  • Cooling
  • Heating
  • Humidifier
  • Fan
Since different manufacturers use different byte values, we must be able to define — for example — whether Cooling = 0, 1, 2, etc.
These values should be editable in the widget configuration.
Fan Speed Selection Section
If Show Fan Speed Selection is enabled, the Fan Speeds section becomes visible.
Fan speed format options:
  • 1-Bit Fan Speeds
  • 1-Byte Fan Speeds
1-Bit Fan Speeds
Selectable speeds:
  • Speed 1 → Speed 4
For each enabled speed:
  • 1-bit control object
  • 1-bit status object
will be mapped in the Objects tab.
For example, if Speed 1 to Speed 4 are enabled, the widget should support:
  • 4 × 1-bit fan speed control objects
  • 4 × 1-bit fan speed status objects
(total 8 objects).
1-Byte Fan Speeds
Selectable options:
  • Speed 1 → Speed 4
  • Auto
For each option, the user can manually enter the value that will be written to the 1-byte object.
Additionally, fan byte format options should support:
  • Scaled value
  • Unsigned integer
(or alternatively, these datatypes may be selectable directly in the Objects tab).
Auto / Manual Selection Section
If Show Auto-Manual Selection is enabled:
  • One 1-bit Auto / Manual object will be added.
There will also be a:
  • Reverse Auto / Manual option
This allows sending:
  • 0 = Auto / 1 = Manual
    or
  • 1 = Auto / 0 = Manual
depending on the device requirements.
Summary
This widget will allow LogicMachine to be fully compatible with a wide range of VRV / VRF indoor units, by supporting:
  • brand-dependent byte mode values
  • selectable fan control styles
  • reverse logic options
  • Auto / Manual control
All of which are necessary in real-world VRV / VRF automation projects.
Thank you in advance for considering this request — we believe this widget will be highly useful for many system integrators working with VRV / VRF systems.