Modular approach to features and price
Wiren Board 7.4
PLC with open source Linux-based software
Wiren Board 7.4
Linux Inside
Embedded open source software with Debian Linux OS
  • ARM Cortex A7 4 kernels, 1.2 GHz
  • 1 or 2 GB DDR3 RAM
  • Internal storage eMMC 8 or 64 GB
2 Ethernet ports
Two Ethernet 10/100 ports for connecting to IP networks and the Internet
  • TCP/IP, UDP, HTTP(S)
  • Modbus RTU-over-TCP, Modbus TCP, SNMP, MQTT, KNX IP
Extension modules
Additional features
  • KNX
  • OpenTherm, eBUS
  • Z-Wave, Zigbee
  • Discrete and analog inputs/outputs
4G modem
Backup or main communication channel. Two nano SIM cards
  • Sending SMS
  • GPRS (80 kbps)
  • 4G(LTE) (150 Mbps)
Wireless
Backup or main communication channel. Connecting devices
  • Wi-Fi (AP+Client)
  • Bluetooth 4.0
Ports and interfaces
RS-485, CAN, 1-Wire
  • Modbus RTU Master/Slave and other protocols
  • Digital thermometers 1-Wire
  • 6 universal inputs/outputs
I/O modules
Stackable modules add up to 128 channels to the controller
  • Discrete outputs: mechanical and solid state relays
  • Discrete inputs: dry contact, 24V, 220V
  • Analog inputs and outputs
$405.17
Retail price
from $405.17 to $613.10
depending on options
In stock 536 pcs.

We recommend using the newer controller Wiren Board 8 in new projects.

Wiren Board 7 is a universal automation controller powered by open-source software.

The controller is used in the tasks of monitoring server and climatic equipment, dispatching and collecting data from metering devices, as a heart of a smart home and industrial automation.

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MAIN FEATURES

Hardware and software
  • 1.2 GHz Quad Core ARM Cortex A7 industrial-grade CPU
  • 1 GB DDR3 RAM
  • 8 GB industrial-grade eMMC Flash
  • Dedicated secure key storage

You can optionally configure the controller with 2 GB DDR3 RAM and 64 GB eMMC.

The controller runs Debian Linux 11 with kernel 5.10, providing extensive opportunities for installing third-party software.

Preinstalled software allows you to configure the controller and connected devices, create automation scripts, store measurement archives, and view data.

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Interfaces and Communications
  • 1 × microSD slot, up to 60 MB/s
  • 2 × Ethernet 10/100 (1 × PoE)
  • 1 × USB Host
  • Wi-Fi 802.11n (AP, client)
  • Bluetooth 4.0
  • 2 × RS-485
  • 1 × CAN, multiplexed with one of RS-485
  • 2 × 1-Wire / discrete inputs
  • 4 × discrete / analog inputs / outputs ("open collector")

Additionally, with extension modules:

  • 4G (LTE) dual SIM-card modem
  • Z-Wave and Zigbee
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Supported protocols

The controller supports a wide range of protocols and devices:

  • Modbus RTU – relays, dimmers, I/O modules;
  • Somfy, WINDECO, DOOYA, AKKO – electric curtains;
  • IEC 61107, DLMS/COSEM – electricity meters;
  • 1-Wire – temperature sensors like DS18B20;
  • Wi-Fi, Bluetooth – sensors, gateways, and devices;
  • Modbus TCP, MQTT, OPC UA, SNMP, Zabbix API – data exchange with other controllers, servers, and SCADA systems;
  • Danfoss, Carel, Eliwell – refrigeration controllers such as Danfoss EKC 202B/D, ERC 21x, and Carel BASIC/EASY;
  • KNX – integration with existing KNX systems (with add-on modules);
  • OpenTherm and eBUS – electric and gas boilers (with add-on modules);
  • Z-Wave, Zigbee, DALI – sensors, actuators, and lighting devices (with add-on modules);
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Fast Modbus support

All Wiren Board devices, in addition to standard Modbus RTU, can operate with its extension Fast Modbus ⚡, which adds new capabilities:

  • instant polling of input states and measured values via events;
  • quick discovery of devices connected to the controller;
  • automatic resolution of address conflicts on the bus.

These features are enabled automatically — if the device supports Fast Modbus, the controller will use it. Otherwise, it falls back to standard Modbus RTU.

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Wiren Board Cloud

All Wiren Board controllers are fully autonomous and do not require an internet connection. However, you can optionally connect them to the Wiren Board Cloud remote management platform and gain:

  • Remote access to the web interface and SSH from any browser on a computer or smartphone;
  • Data archive in Grafana — build custom dashboards with charts, indicators, and analytics;
  • A unified controller list showing current statuses, serial numbers, firmware versions, and more — helpful for inventory and maintenance;
  • Multi-user access and grouping by organizations — convenient for integrators and enterprises managing multiple clients.

An on-premise version is available for deployment on your own infrastructure.

Full feature description.

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Features

The controller is built with industrial-grade components and can operate continuously in ambient temperatures from -40 to +75°C.

It features port overvoltage protection and a watchdog timer, making it suitable for applications requiring high reliability.

The DIN-rail housing and wide power supply range (9–48 V) ensure easy integration into new or existing automation cabinets.

The open platform architecture allows you to install third-party software or develop your own solutions.

A broad range of supported modules and communication protocols enables deployment of scalable, fault-tolerant automation systems.

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Quality control at every stage of production

We develop and manufacture all Wiren Board devices in-house. Every unit undergoes comprehensive quality control:

  • During development – verification of components and stress testing of prototypes;
  • After SMD installation – automated optical inspection;
  • After through-hole soldering – manual inspection of solder joints;
  • After assembly – functional testing using an automated test stand;
  • Before shipping – inspection for completeness, labeling, and visual quality.

As a result, the failure rate remains below 0.5% across all shipped units.

If a device fails within two years of purchase, we will replace it free of charge — no need to send it to a service center.

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WEB INTERFACE

Text dashboards

The primary building block of the text information panel is a widget. It allows you to combine data from different sources in a single view.

The dashboard is adaptive and adjusts to the screen size of mobile devices.

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Graphic dashboards

You can create interactive graphic dashboards using SVG drawings.

Data can be displayed in text elements, while the visibility and design of graphical elements can be customized. You can also assign reactions to user actions — like turning on a light or deactivating an alarm.

The controller’s web interface includes a visual editor to simplify dashboard setup.

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Data archive

All data received by the controller is stored in an archive with a configurable size.

You can build historical graphs for multiple channels simultaneously. Interactions like zooming and cursor-based measurements are supported.

Archived data can be exported to CSV format for analysis using external tools.

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Automation scripts

The Wiren Board controller firmware includes a powerful scripting tool based on a JavaScript-like language — WB-Rules.

You can automate any actions, such as controlling lighting, heating, or production processes.

Scripts can be written and edited directly within the web interface, with built-in console debugging support.

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Legal purchase terms

  • These terms of sale are developed based on the Civil Code of the Republic of Kazakhstan, the Law of the Republic of Kazakhstan "On Consumer Protection," and other regulatory acts. These rules regulate the procedure for retail purchase and sale of goods through the online store, being a public offer addressed to individuals and legal entities ("Buyers").
  • The Buyer accepts the terms and conditions set out in these terms and conditions by placing an Order on the online store's website. An order is considered properly executed if the Buyer provides the Seller with the following information:
    • Buyer's last name and first name
    • Phone number
    • Delivery address
    • Product name
    • Quantity
  • The Buyer grants the Seller the right to use all personal data transmitted in the Order for the following purposes:
    • Fulfilling obligations to the Buyer
    • Forming and developing a loyalty program
    • Informing Buyers about news from the online store
  • Delivery is carried out through third-party services and is available on weekdays from 9:00 to 18:00. Delivery times depend on the region and range from 1 to 14 business days. Delivery terms include the following:
    • Delivery is without demonstration of the product
    • If the Buyer disagrees with the delivery terms, they may cancel the order at any time before receiving it
    • Delivery costs are charged in case of refusal of the product
    • The Buyer must check the product packaging for damages upon receipt
  • Payment for ordered Products can be made:
    • By bank transfer based on the invoice issued to the Buyer
    • By credit card via a payment link generated for the Buyer
  • Orders are processed on working days from 10:00 to 18:00 Astana time. Orders placed after 18:00 will be processed the next business day.
  • Products of good quality can be returned within 14 days of receipt, provided they have not been used. For returns:
    • The Buyer must email a return request to the Seller's support
    • The refund excludes delivery costs
    • Refunds are processed within 10 days of claim submission
  • The warranty period for the Product is 24 months from the date of shipment.
  • The risk of accidental loss or damage passes to the Buyer at the time of transfer, as confirmed by the Buyer's signature on the delivery documents. Ownership passes upon full payment.
  • The legislation of the Republic of Kazakhstan applies to relations between the Buyer and the Seller.
  • The Seller reserves the right to amend these terms. Changes will be posted on the website at least 7 days before their effective date.
  • The Buyer guarantees they understand and accept all terms unconditionally and in full.
  • All disputes will be resolved through negotiations. If no agreement is reached, disputes will be referred to the arbitration court of Astana.