CODESYS Communication

OPC Server

Standard Interface to access the IEC 61131-3 process data of a controller via Open Platform Communications.

OPC UA

Standard Interface for Communication in Smart Factory and Industry 4.0 Systems

PLCHandler

Compact software interface (API) for easy access to the PLC variables in CODESYS controllers from external systems

BACnet

Configurator and protocol stack fully integrated in the IEC 61131-3 Development System

Although today almost every industrial controller has an Ethernet connection, serial interfaces are still installed in many industrial devices. This allows, for example, for the connection of appropriately equipped sensors and actuators or extensions.

Standard Ethernet

How does CODESYS communicate via Ethernet? How can I send and receive data from a CODESYS-compatible PLC via TCP or UDP? How can I realize data exchange from the PLC application?

Fieldbus systems and Industrial Ethernet

Sensors and actuators/actuators for processing control tasks can be separated from the controller via fieldbus and Ethernet systems with industrial communication protocols.

IIoT libraries

All IoT communication protocols can be implemented and used on different transmission media via software.

Other communication options

If a physical port is available on a controller, communication protocols can usually be implemented simply via software, either as part of the IEC 61131-3 control application or as separate library modules.

Proprietary communication protocols

CODESYS supports the most common standard communication protocols for data exchange between controllers, such as OPC UA.