Hardware Installation

Key Safety Principals

IMPORTANT: PROFESSIONAL INSTALLATION REQUIRED

We emphasize in the strongest possible terms: safety is the absolute priority. All activities related to connecting the device to an electrical installation must be performed exclusively by a qualified electrician who holds the appropriate certifications. Installation by unqualified individuals poses a risk of electric shock, equipment damage, or fire. The manufacturer assumes no liability for damages resulting from an improper installation.

This applies in particular to:

• Connecting the power supply to the controller.
• Connecting high-voltage circuits (110V/230V) to the controller's outputs.
• All installation work inside the electrical cabinet (distribution board).

Attempting to modify an electrical installation without the proper qualifications is illegal, extremely dangerous, and creates a real hazard that can lead to:

• Electric shock, severe personal injury, or death.
• Permanent damage to the boneIO controller and all connected equipment.
• A significant fire hazard resulting in property damage.
• Voiding the product warranty and potential issues with property insurance claims.

The manufacturer of boneIO assumes no liability whatsoever for material damages, personal injury, or loss of life resulting from an installation performed contrary to these guidelines and applicable safety standards.

Please treat this warning with the utmost seriousness.

---

DIN Rail Mounting

The boneIO ESP controller is designed for mounting on a standard DIN rail (TS35).

1. Hook the upper clips of the enclosure onto the top edge of the DIN rail.
2. Press the lower part of the enclosure firmly until the latches lock onto the rail with a distinct click.
3. Ensure the module is securely mounted.

Power Supply Connection

The device requires a stabilized 12-24V DC power supply.

1. Ensure the power supply is disconnected from the 230V/110V mains.
2. Connect the + output of the power supply to the + screw terminal on the boneIO.
3. Connect the GND (ground) output of the power supply to the GND screw terminal on the boneIO.
4. Double-check the connections and polarity before turning on the power supply.

Connect Ethernet

The device communicates with the network using a built-in Ethernet port, which guarantees a stable and reliable connection. To establish connectivity, connect the module to your network switch using a standard Ethernet (RJ45) cable.

1. Connect ethernet cable to LAN port on your controller.
2. Connect other side of ethernet cable to your network switch.

Connecting Digital Inputs

Digital inputs are used for connecting switches and sensors. By default, they are ground-controlled.

1. Connect one of the wires from a momentary switch to the common GND (ground) terminal.
2. Connect the other wire to the desired input terminal (e.g., IN01).
3. Pressing the switch will short the input to ground, which will be interpreted as an "on" signal.

Logical diagram of connecting digital input

GND or +

The default input behavior (ground-controlled) can be changed via the internal switch. Please see the switch location below.

• Down (Default): GND control.
• Up: High-potential control.

Example:

Example 2:

Example 3:

Connecting Communication Buses

Modbus RS485

Used for communication with industrial and HVAC devices.

• Connect the A line of the bus to the A terminal on the boneIO.
• Connect the B line of the bus to the B terminal on the boneIO.

ESP series devices have undergone Modbus RTU bus testing with 5 connected devices. Using a larger number of Modbus devices connected to an ESP series controller may cause delays in the controller's response (both inputs and outputs). This is due to the specifics of the processor used. In the case of extensive Modbus buses, we recommend splitting them across several devices.

CAN

Used for communication with industrial HVAC devices and sensors.

• Connect the L line of the bus to the L terminal on the boneIO.
• Connect the H line of the bus to the H terminal on the boneIO.

Final Checks

After completing the installation:

1. Double-check all connections.
2. Ensure there are no short circuits.
3. Turn on the main power (24V DC power supply).