PLCnext Technology from Phoenix Contact is a unique, open ecosystem for modern automation that is capable of meeting all the challenges of the IoT world.
Find the right webinar for you, view tutorials, take advantage of our presence on GitHub, or get the info you need in our detailed documentation
Find user stories and applications of interesting ideas and solutions - Or add your own experiences
Find 24/7 support fired by creative and technically competent community users
Known issues (most recent releases) Note: This page lists known issues valid for firmware releases 2023.0 LTS up to the most recent. For known issues in firmware release 2022.9 and earlier, see Known Issues (previous). For known issues in firmware release 2019.9 and earlier, see the Change Notes for your devices. Read More
Modbus TCP Client Available from firmware 2024.6 From firmware release 2024.6 on, there is a Modbus TCP Client directly implemented into the Automation Runtime Platform (ARP) of PLCnext Technology. This Modbus TCP Client can be configured via the PLCnext Engineer programming software. The implementation depends on the libmodbus open source library, provided by libmodbus.org. Read More
Modbus TCP Modbus is a long-living communication standard in industrial automation. It has been developed to communicate via TCP. There are different Modbus implementations available, e.g. as a function block (available in the PLCnext Store). But using a function block, its instantiation is necessary for each and every Modbus… Read More
Modbus TCP server Available from firmware 2026.0 LTS From firmware version 2026.0 LTS, the Modbus TCP server function is implemented into the Automation Runtime Platform (ARP) of PLCnext Technology. This Modbus TCP Server can be configured via the PLCnext Engineer programming software. The implementation depends on the libmodbus open source library, provided by libmodbus.org. How to… Read More
Known issues (previous releases) Note: This page lists known issues valid for firmware releases 2020.0 LTS up to 2022.9. For known issues in firmware release 2023.0 LTS and later, see Known Issues (current). For known issues in firmware release 2019.9 and earlier, see the Change Notes for your devices. A firmware release… Read More
