Web-IO 4.0 Digital 1x 230V In, 1x relay Out

Precise Control and Monitoring with the Web-IO 4.0 Digital, 1x 230V In, 1x Relay Out from Wiesemann & Theis

In modern industry and building automation, the control and monitoring of switching signals are crucial for optimizing processes and ensuring operational reliability. The Web-IO 4.0 Digital, 1x 230V In, 1x Relay Out from Wiesemann & Theis is a compact, network-capable device that offers a 230V switching input and a potential-free relay output for 230V mains voltage. With an intuitive web interface, comprehensive network services, and support for protocols such as OPC UA, MQTT, and REST, it is ideally suited for Industry 4.0 and the Internet of Things (IoT). This article outlines the technical features, applications, and benefits of this specialized device, developed for remote monitoring, building automation, and smart home control.

Precise Control and Monitoring of 230V Switching Signals

The Web-IO 4.0 Digital, 1x 230V In, 1x Relay Out features a 230V switching input equipped with an integrated 32-bit event counter for precise recording of switching operations or events. The switching output is a potential-free relay output capable of handling switching currents up to 16 A at 230V mains voltage. These characteristics allow for the control of devices such as lighting, motors, or other 230V consumers, as well as for monitoring 230V signals in industrial and private applications. The device is ideal for process monitoring, machine data acquisition (MDA), and alarm detection where precise 230V signal management is required.

Intuitive Operation and Network Integration

The Web-IO 4.0 Digital is extremely user-friendly, thanks to its intuitive web interface which can be switched between German and English. Users can control the relay output directly from the web interface and monitor the status of the switching input in real time. The interface is optimized for smartphones, enabling remote control on-the-go. Support for HTTP and HTTPS ensures secure communication. Developers can access current I/O states via HTTP requests, AJAX, or JavaScript to integrate the device into other web pages or applications. The box-to-box function enables 1:1 transfer of switching signals over the network, simplifying remote control across multiple sites. These connectivity features make the device ideal for networked control in connected environments.

Flexible Alarm and Notification Functions

The Web-IO 4.0 Digital offers a wide range of alarm and status notification options. Up to 30 actions can be configured to trigger automatically upon changes to the input or output. These include email notifications, SNMP traps (V1, V2, V3), activating its own relay output, controlling outputs of another Web-IO, or sending HTTP requests to third-party devices. These features are particularly useful in critical scenarios such as remote monitoring or alarm detection, where a quick response is essential. The option to send status messages via email supports documentation and analysis of switching events—important for audits and quality management.

Seamless Integration into Industry 4.0 and IoT

The Web-IO 4.0 Digital is fully equipped for Industry 4.0 and the Internet of Things. It supports modern protocols such as OPC UA, REST, and MQTT for easy integration into automation systems and IoT platforms. AMQP support is also available upon request. Additional interfaces such as SNMP V1, V2c, V3, Modbus TCP, OPC DA, Syslog, and Sensobase (ODBC database integration) ensure smooth connectivity to existing systems and databases. Developers can access I/O states directly via TCP and UDP sockets (client and server) to implement custom solutions. FTP support enables logging switching signals for improved traceability. These connectivity options make the device a future-proof solution for building and home automation as well as for industrial applications.

Data Logging and Time Management

The Web-IO 4.0 Digital includes an integrated data logger that stores switching events and state changes. The logging capacity ranges from at least 7 weeks up to 20 years depending on the selected interval (15 seconds to 1 hour). Data can be exported in various formats such as via FTP, Excel files, or email attachments, allowing easy post-processing. An internal battery-buffered clock ensures accurate timestamps, which can be synchronized with a time server for even more precise tracking. These features ensure reliable documentation and analysis of switching actions—particularly valuable in process monitoring and machine data acquisition.

Versatile Applications

The Web-IO 4.0 Digital, 1x 230V In, 1x Relay Out is designed for a wide range of use cases. In remote monitoring and alarm detection, it monitors the 230V input to detect and report operational issues. In building automation, it switches devices such as lighting, heating systems, or motors and enables control across multiple locations. In smart home applications, it assists in automating lighting or HVAC systems to improve comfort and energy efficiency. In industrial environments, it supports process monitoring, visualization, and machine data acquisition (MDA) to optimize production processes. The input event counter allows logging of switching cycles or system states. Additional applications include controlling gates, barriers, or access systems.

Flexible Power Supply and Standards Compliance

The Web-IO 4.0 Digital is powered by an external 230V AC (50 Hz) power source via screw terminal connection. This configuration is ideal for applications that work directly with 230V mains. The device is compliant with standards for office and industrial environments, featuring high immunity according to EN 61000-6-2 and low emissions in accordance with EN 55032:2015 + A1 Class B, EN 61000-3-2, and EN 61000-3-3. These qualities ensure reliable and interference-free operation even in demanding environments.

Durability and Reliability

The Web-IO 4.0 Digital is built for continuous operation and comes with a 5-year warranty. Its robust design and DIN rail mounting capability make it ideal for use in industrial environments. The internal battery-buffered real-time clock ensures precise timekeeping, further enhanced through synchronization with a time server. These features highlight the long-term durability and reliability of the device—even under challenging conditions.

An Indispensable Tool for 230V Control and Monitoring

The Web-IO 4.0 Digital, 1x 230V In, 1x Relay Out from Wiesemann & Theis is a compact and specialized solution for network-based control and remote monitoring of 230V switching signals. With its 230V input, potential-free relay output, and extensive networking features, it offers a flexible solution for building automation, smart home systems, process monitoring, and machine data acquisition. Support for modern protocols such as OPC UA, MQTT, and REST—as well as the intuitive web interface—make it perfectly suited to the needs of Industry 4.0. Whether for switching lights, motors, or barriers, for monitoring 230V signals, or for logging switching events—this device is an indispensable tool for professional users.