{"article":{"id":32051262718865,"url":"https://reduxi.zendesk.com/api/v2/help_center/en-us/articles/32051262718865.json","html_url":"https://support.reduxi.eu/hc/en-us/articles/32051262718865-Connect-and-configure-Pixii-Powershaper-and-Home-Reduxi-controller-TCP-IP-and-RS485","author_id":12476818698513,"comments_disabled":false,"draft":false,"promoted":false,"position":31,"vote_sum":0,"vote_count":0,"section_id":12705797451793,"created_at":"2025-01-23T12:28:42Z","updated_at":"2026-05-12T06:55:20Z","name":"Connect and configure Pixii Powershaper and Home Reduxi controller (TCP/IP and RS485)","title":"Connect and configure Pixii Powershaper and Home Reduxi controller (TCP/IP and RS485)","source_locale":"en-us","locale":"en-us","outdated":false,"outdated_locales":[],"edited_at":"2026-05-12T06:41:15Z","user_segment_id":null,"permission_group_id":12478949560849,"content_tag_ids":["01GRKFPJ1485BNGYK88MCE7WQ8","01GV0BT8853MGM9B0Q4T5AZSAS","01GV0WRS5Y8NMPPRR4EG9X99VB","01GV57JJ9166RSQPKRCRZ4S72T","01HXXN6TBYXG88XJVHPEK3X77B","01HZH62CEDXTAKN68QF7Y0GQJA","01JF0673RVT854RKSHGTPGX76X","01JJ1JJ7CSWR9JGFWPASQ7WFGN","01JJ9HXF6VAEBJHRB7091CMKG3","01JJ9HXMDR2HBFZD9QPRSXWXF2","01JJ9HXWGG5HHTQ05BZ246XKGG","01JJ9J1SM98ZE02XTXVCYWH9F6","01KP37Z7SCXKV4PGDJX5W0VA1Y"],"label_names":["Reduxi Configurator","Reduxi Controller","Battery storage","Cost reduction","flexibility","Modbus TCP/IP","Energy cost reduction","Pixii BESS","Pixii Batery System","Pixxi Powershaper","Pixii"],"body":"

 

\"pixii-logo.png\"

1. Overview

Pixii PowerShaper and Pixii Home support two independent Modbus communication methods for integration with the Reduxi controller:

Supported communication modes:

Only one communication method is used at a time, depending on the site design and available infrastructure.

2. Communication Option A – Modbus TCP/IP

2.1 Description

Modbus TCP/IP is the recommended and most commonly used communication method.

Characteristics:

2.2 Physical Connection – Modbus TCP/IP

    \n
  1. Connect the Pixii PowerShaper / Pixii Home to the local network using an Ethernet cable.
    2. \n
  2. Connect the Reduxi controller to the same local network.
    3. \n

Ethernet connection examples:

\"Powershaper
\"Ethernet
\"Modbus

2.3 Network Configuration (Pixii)

    \n
  1. Enter the Pixii user interface
    (Pixii Home App for Pixii Home, Web Interface for PowerShaper)
    2. \n
  2. Navigate to:
    3. \n
\"pixii1.png\"
Communication → Network settings\n
  1. Configure:
  1. Record the Pixii IP address for Reduxi configuration.

\"pixii2.1.png\"

2.4 Modbus TCP Configuration (Pixii)

  1. Navigate to:
Menu → Communication → Modbus\n
  1. Set:
  1. Save the settings.

\"pixii3.1.png\"

2.5 Multicabinet Regulation Type (Required for Modbus TCP)

Navigate to:

Menu → Communication → Modbus\n

Two options are available:

Multiple Services

\"image-20250507-090245.png\"

Simple Modbus

\"\"
to enable proper system response, Demand Response had to be activated. This is done by clicking the play button (moving it to the right) and then saving the setting.


If Modbus communication is not working properly, restart PIXII.

Note:
Changing the Multicabinet regulation type can only be applied by Pixii support.

3. Communication Option B – Modbus RTU over RS485

3.1 Description

Modbus RTU over RS485 is used when:

Characteristics:

 

3.2 Physical Location of RS485

3.3 Multicabinet Role Configuration (Required for RS485)

Navigate to:

System → General settings\n

Single‑cabinet system:

Multi‑cabinet system:

Note:
Multicabinet role is independent from Modbus master/slave roles.
Pixii is always a Modbus slave.

\n3.4 Serial Port Configuration (RS485)

Navigate to:

Menu → Communication → Serial ports\n

Select Serial Port tab “4” (COM4) and configure:

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
ParameterValue
EnabledYes
Baud rate19200
Data bits8
Stop bits1
ParityNone

Save the settings.

3.5 Modbus RTU Configuration

Navigate to:

Menu → Communication → Modbus\n

Set:

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
ParameterValue
EnabledYes
TypeRS485 RTU
Message lifetime60
Serial port identity4
Serial Modbus address1 (single cabinet)
Multicabinet regulation typesimple

For multi‑cabinet systems:

Save the settings.

4. Adding Pixii to the Reduxi Controller

This step is identical for both communication options, except for the selected connection type.

 

4.1 Add Device

Log in to the Reduxi configurator and select Add device.

\"Add_new_device.png\"

 

4.2 Basic Device Settings

\"Basic_settings.png\"

4.3 Communication Channel Selection

Select communication type:

Set parameters accordingly.

\"Comm

4.4 Communication Test

Use Test communication.

Possible results:

\"successful_test_com.PNG\"
\"response_negative.png\"

5. Advanced Settings

The advanced setting is arbitrary and depends on the specific needs of the location where the Reduxi controller is installed. After finishing all the advanced settings, press the \"Done\" button on the lower right side.

\"Advance

6. Control settings/definition for PIXII devices in Reduxi configurator

Control of the PIXII system can be performed with two options, as described in point 3.3, PIXII Modbus settings. Depending on which option is used, the user also needs to be aware that the appropriate control type needs to be defined on the Reduxi configurator for every PIXII device that is added to the system.

In case the Multiple Services device under the menu Devices/PIXII/Details/under all settings needs to be configured, as shown in the image below:

In case the Simple Modbus device in the menu Devices/PIXII/Details/under all settings, needs to be configured, as shown in the image below:

7. Last measurements

After successfully establishing communication with the newly added device, its values ​can be checked under Devices/PIXII PowerSharper in the Reduxi configurator as an additional test. 

\"Last_measuments.png\"

For advanced battery control, integrate the device into the strategy of the Reduxi system. Under Devices/PIXII PowerSharper or Home in the Reduxi configurator, the control type must be set to AUTO so commands for strategy will affect the battery.

To achieve maximal flexibility and energy cost reduction with respect to dynamic price and dynamic tariffs please follow the instructions on how to define strategy at this link: Strategies for Reduxi controller.

After successfully adding the device, it can also be monitored and controlled via the Reduxi application.

 

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