Automation technology in industry usually means combining components from different manufacturers into a common system. In the past, the data exchange required for such systems was handled via a wide variety of fieldbus systems.

Not only since the Industry 4.0 initiative, standardized, TCP/IP Ethernet-based network protocols have been increasingly used.

For smooth integration into state-of-the-art automation technology, W&T Web IO 4.0 products support the following common industrial protocols:

    • OPC UA
    • OPC DA
    • Modbus TCP
    • REMAINDER
    • MQTT

This means that the Web IO 4.0 products are optimally prepared for use in industrial environments.

Even older machines that only communicate their operating states to the outside via switching outputs or analog signals can be integrated into current systems via the corresponding Web-IO.

This bridges the gap between classic automation technology and modern network communication up to Industry 4.0 and IoT.

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Data formats and protocols

From simple bytes to industrial protocols

Modbus TCP

From simple bytes to industrial protocols

REST – REpresentational State Transfer

Industrial communication based on standardized HTTP requests

MQTT – Message Queue Telemetry Protocol

Data exchange without direct connection

OPC UA – OPC Unified Architecture

OPC support out of the box

OPC DA – OPC Data Access

The Process Data Interpreter