Web-IO 4.0 Digital, 12xIn, 8xRelay Out

Versatile Control and Monitoring with the Web-IO 4.0 Digital, 12x In, 8x Relay Out from Wiesemann & Theis

In modern industry and building technology, precise control and monitoring of switching signals are essential to optimize processes and ensure operational safety. The Web-IO 4.0 Digital, 12x In, 8x Relay Out from Wiesemann & Theis is a network-capable device that controls and monitors 12 digital switching inputs and 8 relay outputs via TCP/IP Ethernet. With an intuitive web interface, comprehensive network services, and protocols such as OPC UA, MQTT, and REST, it is ideally suited for Industry 4.0 and the Internet of Things (IoT). This article highlights the technical features, application possibilities, and advantages of this versatile device developed for remote monitoring, building automation, and home automation.

Precise Control and Monitoring of Switching Signals

The Web-IO 4.0 Digital features 12 switching inputs in 24V technology, equipped with integrated 32-bit pulse counters to precisely record events such as switching operations or pulses. The 8 switching outputs consist of seven potential-free changeover contacts (CO) and one potential-free normally open contact (NO), with a switching voltage of up to 24 V (or 110 V and 230 V via coupling relays) and a switching current of up to 2 A. These features allow the control of devices such as lighting, gates, or barriers, as well as the monitoring of sensors or switches in industrial and private applications. The combination of inputs with pulse counters and versatile outputs makes the device ideal for process monitoring, machine data collection (MDE), and fault message acquisition.

Intuitive Operation and Network Integration

The operation of the Web-IO 4.0 Digital is extremely user-friendly thanks to an intuitive web interface that can be switched between German and English. Users can directly control the switching outputs via the web interface and monitor the status of the switching inputs in real time. The interface is optimized for smartphones, enabling control on the go. Support for HTTP and HTTPS ensures secure communication. Developers can access current IO statuses directly via HTTP requests, AJAX, or JavaScript to integrate the device into other websites or applications. The box-to-box function allows switching signals to be forwarded 1:1 over the network, facilitating cross-site control. These connectivity options make the device ideal for network control in connected environments.

Flexible Alarm and Notification Functions

The Web-IO 4.0 Digital offers extensive alarm and status notification options. Up to 30 actions can be configured to trigger automatically when inputs or outputs change. These include email notifications, SNMP alarms (SNMP traps V1, V2, V3), switching the device's own outputs, controlling the outputs of another Web-IO, or HTTP requests to control third-party devices. These functions are particularly beneficial in critical applications such as remote monitoring or fault message acquisition, where rapid responses to events are required. The ability to send status messages via email supports the documentation and analysis of switching operations, which is essential for audits and quality management.

Seamless Integration into Industry 4.0 and IoT

The Web-IO 4.0 Digital is perfectly equipped for the requirements of Industry 4.0 and the Internet of Things. It supports modern protocols such as OPC UA, REST, and MQTT, enabling easy integration into automation systems and IoT platforms. AMQP is also supported upon request. Additional interfaces such as SNMP V1, V2c, V3, Modbus TCP, OPC DA, Syslog, and Sensobase (database integration via ODBC) allow connection to existing systems and databases. Developers can access IO statuses directly via TCP and UDP sockets (client and server) to develop custom solutions. FTP support allows logging of switching signals, increasing the traceability of processes. These connectivity options make the device a future-proof solution for building automation, home automation, and industrial applications.

Data Storage and Time Management

The Web-IO 4.0 Digital features an integrated data logger that stores switching operations and status changes. The storage capacity ranges from at least 7 weeks to a maximum of 20 years, depending on the selected storage frequency (15 seconds to 1 hour). Data can be exported in various formats such as FTP, Excel files, or email attachments, making further processing easier. An internal, battery-backed clock ensures precise time stamps, optimized by synchronization with a time server. These functions ensure reliable documentation and analysis of switching operations, which is particularly advantageous in process monitoring and machine data acquisition.

Versatile Application Possibilities

The Web-IO 4.0 Digital is designed for a wide range of applications. In remote monitoring and fault message acquisition, it monitors switching inputs and reports status changes to detect and resolve operational disruptions. In building automation, it controls devices such as lighting, gates, or barriers and enables cross-site switching operations. In home automation, it supports the automation of lighting or heating systems to increase comfort and energy efficiency. In industrial environments, the device is suitable for process monitoring and visualization as well as machine data acquisition (MDE) to optimize production processes. The pulse counters on the inputs enable the detection of events such as production cycles or flow rates. Other applications include controlling barriers or access systems.

Flexible Power Supply and Standards Compliance

The Web-IO 4.0 Digital can be powered either via Power-over-Ethernet (PoE) with phantom power via data pairs or via unused wire pairs, or via an external power supply (12–24 V DC) through a screw terminal. This flexibility allows use in environments with or without PoE infrastructure. The device complies with standards for office and industrial environments and offers high immunity to interference according to EN 61000-6-2 and low emissions according to EN 55032:2015 + A1 Class B, EN 61000-3-2, and EN 61000-3-3. These features ensure reliable and interference-free operation, even in demanding environments.

Please note: No power supply is included in the delivery.

Durability and Reliability

The Web-IO 4.0 Digital is designed for continuous operation and comes with a five-year warranty. Its robust construction and DIN rail mounting capability make it ideal for use in industrial environments. The internal clock, buffered by a battery, ensures precise timekeeping, which is optimized by synchronization with a time server. These features underline the durability and reliability of the device, even under demanding conditions.

An Indispensable Tool for Control and Monitoring

The Web-IO 4.0 Digital, 12x In, 8x Relay Out from Wiesemann & Theis is a versatile solution for relay control and remote monitoring in connected environments. With its 12 switching inputs, 8 relay outputs, and comprehensive network capabilities, it offers a flexible solution for building automation, home automation, process monitoring, and machine data acquisition. The support of modern protocols such as OPC UA, MQTT, and REST, as well as the intuitive web interface, make it ideal for the requirements of Industry 4.0. Whether controlling lights, gates, or barriers, monitoring sensors, or logging switching operations – this device is an indispensable tool for professional users.