Before you start

Before you begin, make sure:

The I/O device is physically installed and powered on
A meter for the heat pump is installed and configured in the commissioning wizard

Step-by-Step Instructions

1. Connect the I/O device to the network

Connect an Ethernet cable to the network port on the I/O device
Verify the connection is established by checking the LINK LED

For network infrastructure requirements and troubleshooting, see Infrastructure requirements for the gateway.

2. Access the I/O device settings

Open a browser on your device
Navigate to the device's web portal using its default address: http://192.168.0.3 or http://TCRIP4

Do not set a user password. Setting a password may prevent the commissioning wizard scanner from discovering the I/O device.

3. Enable communication via UDP

Navigate to
Network
Configure the following Network settings:
- UDP: Enabled
- UDP Port: 30303
- DHCP: Enabled
Save network settings

4. Discover the I/O device in the commissioning wizard

The device is now ready for the commissioning wizard. The gateway will scan the network to find available devices, which may take a few minutes. Once complete, the I/O device will appear on the results page.

5. Configure the connected heat pump via SG Ready

During the commissioning process, you can configure the output channels to manage the connected heat pump using SG Ready in a separate step.

Configure a Heat Pump (Central Heating)

Click Add Output Channel
Configure the output channel:
- Device name: Heat Pump
- Type: Double Channel
- SG Ready Contact 1: 1 (EVU Sperre) (verify against actual wiring)
- SG Ready Contact 2: 2 (Recommendation signal) (verify against actual wiring)
- PMax / PMin: maximum and minimum power of the heat pump in kW
Click Add

Output Channel configuration form for a heat pump with Double Channel SG Ready setup

Configure a Heat Pump (Domestic Hot Water), if present

Click Add Output Channel
Configure the output channel:
- Device name: Heat Pump (DHW)
- Type: Single Channel
- SG Ready Contact: 3(verify against actual wiring)
- PMax / PMin: maximum and minimum power of the heat pump in kW
Click Add

Specify how consumption is measured

In the Set Up Your Connected Heat Pumps step, specify whether the heat pump is connected to its own separate meter or to the general household consumption meter. This information is essential for managing the heat pump effectively. If the heat pump's consumption is measured by a separate meter and billed with a dedicated tariff, it will not be applied to self-sufficiency optimization.

Dropdown asking whether the heat pump is connected to its own separate meter or to the general household consumption meter

FAQ

Why isn't the I/O device appearing in the commissioning wizard?

Check that the Ethernet cable is connected and that the I/O device received an IP address via DHCP. Verify that UDP is enabled and the port is set to 30303. Restart the gateway and wait for the network scan to complete.

Why shouldn't I set a user password on the I/O device?

Leave the user password field empty. A password prevents the commissioning wizard from discovering the device and blocks the gateway from sending commands to it.

Why does the heat pump need its own meter?

The relay connection of the I/O device only controls the heat pump — it cannot report energy consumption back to the EMS. A dedicated meter must be installed and configured in the commissioning wizard so the EMS can measure the heat pump's consumption and manage it effectively.

How do I update the firmware of the I/O device?

Download the latest firmware from the Rutenbeck website and perform the update. For detailed update instructions, refer to the official Rutenbeck documentation.