PIERRE Partner - Controller Informations

The Controllers section of the PIERRE Partner App is used for commissioning, configuring, and monitoring all PIERRE Wired controllers within a building or project. It provides a centralized overview of controller status, connected devices, resource utilization, and maintenance functions.

Controller List

The controller list displays all controllers available within the selected building or system.

For each controller, the following information is shown:

Controller name
Number of configured Inputs
Number of configured Outputs
Number of Configurable I/O channels
Current connection status
Runtime memory usage

Controllers can be arranged in any preferred order to improve system organization. To reorder controllers, press and hold the drag handle (two parallel lines) on the right side of the controller card and move the controller to the desired position.

LED Status Indicator

The controller carries a status LED. Its colour tells you what the controller is doing, which is the quickest way to check a unit on site without opening the app.

The LED on the controller shows its current state:

Colour	State	What it means
Green	Online	Connected to the network and operating normally.
Pulsing green	Connected to Local Broker	The controller is reaching the system through a local broker in the building. This is the only state that pulses.
Red	Offline	Disconnected from the network, or there is no internet access.
White	Commissioning	The controller has started in AP mode and is waiting to be commissioned.
Light blue	AP mode	The controller is broadcasting its own network for setup or configuration.
Dark blue	Selected in the app	This controller is the one currently selected in the PIERRE Partner app. Use it to identify the physical unit in the cabinet.
Purple	Searching for IP address	The controller is waiting for an address from the router.
Orange	Firmware update	An OTA update is running. Do not power the controller off while the LED is orange.

Connection Status in the App

Separately from the LED, each controller card in the app carries a connection indicator in its upper-right corner, with a label beside it.

Indicator	Label	Meaning
Steady green	Connected to Cloud Broker	The controller is reaching the system through the cloud broker.
Pulsing green	Connected to Local Broker	The controller is reaching the system through a local broker in the building. This is the only state that pulses.
Steady red	Offline	The cloud connection has been lost.

The app distinguishes four connection states internally, but both disconnected states are shown the same way — steady red with the Offline label — so the label alone does not tell you which broker the controller was using. Any state the app cannot interpret is also shown as red.

Reading the two indicators together: the LED tells you what the controller itself is doing, and the connection indicator tells you how it is reaching the system. A controller with a white LED is not yet commissioned, so it will show as offline in the app until commissioning is finished.

Controller Configuration

Selecting a controller opens its detailed configuration page.

Available sections include:

Inputs

Configure and manage all input devices connected to the controller, including sensors, switches, and other signal sources.

Outputs

Configure output channels used for controlling lighting, HVAC equipment, shading systems, relays, and other connected devices.

Configurable I/Os

Configure channels that can operate either as inputs or outputs depending on project requirements.

Service

Provides access to controller-specific maintenance and diagnostic functions.

Additional Controller Options

Press and hold a controller card to access additional functions.

Edit

Name - Allows modification of the controller name.
Log - Enables verbose diagnostic logging through the controller's serial port. This feature is primarily intended for commissioning, troubleshooting, and advanced technical support.

Info

Displays controller information including:

Bridge Type (Controller)
Firmware Build Version

Controller Memory Usage

The Controller Usage indicator displays the current runtime memory utilization of the controller as a percentage from 0% to 100%.

This value represents the utilization of the controller's dynamic runtime memory (Heap).

The heap is used by the controller to allocate memory during operation for various services and processes.

Typical Activities That Increase Heap Usage

Creating and configuring Inputs and Outputs
Establishing network connections
Communication buffers for protocols such as Modbus
Automation and scenario execution
Logging and temporary data storage
Device management services
Graphic processing and display-related operations

When tasks are completed and resources are released, heap utilization may decrease accordingly.

Factors Affecting Heap Usage

Runtime memory consumption depends on several factors, including:

Number of connected devices
Active communication protocols
Quantity of configured I/Os
Automation complexity
Configuration size
Network traffic volume
Logging activity

Recommended Operating Range

Heap Usage	Status
0–50%	Excellent
50–70%	Normal
70–80%	Acceptable
80–90%	Monitor Closely
Above 90%	Increased Risk of Instability
Near 100%	Memory Allocation Failures Likely

For optimal long-term stability, controllers should typically operate below 80% heap utilization during normal operation.

Search and Filtering

A search field is available for quickly locating controllers, inputs, outputs, or configurable I/Os by name.

The filter option allows controllers to be displayed based on their connection status:

All Controllers
Connected to Cloud Broker
Connected to Local Broker
Offline

Summary

The Controllers section provides a comprehensive overview of all PIERRE controllers within a project. It enables installers, integrators, and service personnel to monitor connectivity, manage device configuration, perform diagnostics, and track system resource utilization, ensuring reliable operation of the entire PIERRE Wired installation.