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Web-IO 4.0 Digital, 1x230V In, 1xRelay Out

Web-IO 4.0 Digital, 1x230V In, 1xRelay Out

Web-IO 4.0 Digital 230V switching signals controlled, acquired and monitored over TCP/IP Ethernet.

Switch, monitor and count ...

With the Web-IO 4.0 Digital 230V switching signals controlled, acquired and monitored over TCP/IP Ethernet. Numerous Web and network services are available for reporting changes on the input and output - including directly in the browser. With protocols such as MQTT and REST the Web-IO is an ideal fit in the world of Industry 4.0 and the Internet of Things.


Switching signals:

  • 1 switching input:
    • Digital input, 230V
    • 32-bit event counter
  • 1 switching output:
    • Potential-free output for 230V mains voltage
    • Switching currents up to max. 16A


  • Intuitive Web interface for simpler operation
    • Select between German or English
    • Switching the outputs directly from the Web interface
    • Adaptation for smartphone
    • HTTP and HTTPS
  • Current Industry 4.0 protocols:
    • REST and MQTT support
  • Box-to-Box
    • Pass switching signals over the network 1:1
  • Alarm and reporting functions:
    • Email for alarm sending or as status report
    • SNMP polling / alarm traps
    • Switching your outputs in alarm situations
    • Switching the outputs on another Web-IO
    • HTTP requests for controlling third-party devices
    • Up to 12 actions can be configured
  • Dynamic integration into other Web sites:
    • Direct access to current measurement values via HTTP requests. AJAX and JavaScript
  • Additional software interfaces for incorporating into your systems/databases:
    • OPC
    • Modbus TCP
    • Syslog
    • TCP and UDP sockets, client and server
    • FTP (data logging)
  • Internal clock
    • Time synchronization via time server calibration
    • Battery-backed device clock
  • Possible applications:
    • Remote monitoring and fault messaging
    • Cross-location switching
    • House and building automation
    • Process monitoring and visualization
    • Light, gate and cabinet control
    • Machine Data Collection (MDC)
    • More uses can be found here.

Power supply:

  • External
    • Screw terminal
    • 110 - 230V AC (50/60Hz)

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance for industrial environments
    • Low noise emission for residential and business areas
  • 5 year guarantee



Technical data

Connections, displays and control elements:

Digital output:   1 x potential-free contact, max. 16A
Digital input:   1 x digital in,
    max. input voltage 250V DC
    Switching threshold 80V
    Integrated 32-bit event counter
Network:   10/100BaseT autosensing
Power supply:   110-230V AC (ca. 15mA@230V)
Galvanic isolation:   Digital output - network: min. 1000 V
    Digital input - network: min 2000 V
    Digital input - output: min. 1000 V
Adapters:   1 x 6x screw terminal for supply and IOs
1 x RJ45 for network
Displays:   Status LEDs for network
    2 LEDs for digital states

Data transmission:

Protocols:   HTTP and HTTPS
    TCP and UDP sockets, client and server
    MQTT - Publish and Subscribe
    SNMP including traps
    SMTP e-mail sending
    OPC server
    Modbus TCP
    Inventory keeping, group management
Response times:   Data and switching traffic: typically 12 ms

Housing and other data:

Housing:   Plastic housing for top hat rail installation
    90x45x56mm (lxwxh)
Enclosure rating:   IP20
Weight:   approx. 140 g
Storage temperature:   -25°C - 70°C
Operating temperature:   0°C - 60°C
Permissible relative humidity:   5..95% RH (non-condensing)
Scope of delivery:  

1 x Web-IO 4.0 Digital, 1x230V In, 1xRelay Out
1 x Quick Guide
Power supply and other accessories can be
ordered separately





Send messages - when limits are violated or timer-based - for informational purposes directly to the responsible technical as an e-mail or as a reroute via SMS.


After the device has been configured for and connected to your network, the following steps are still necessary.

Open the profile for configuring e-mail alarm messages. e-57606-35-pide-000
Enter the desired parameters. e-57606-36-pide-000
When the limit you have set is exceeded, the device sends an e-mail which can also be transmitted as an SMS message using special functions available from cellular phone service providers. e-57606-37-piww-000


Units in box: 1