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Find user stories of interesting ideas and solutions in this blog.
Note: The Makers Blog shows applications and user stories of community members that are not tested or reviewed by Phoenix Contact.

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From time to time, the OPC UA module in Node-RED doesn't always want to connect to our OPC UA server after installation.

The reason is that the installation doesn't always create the necessary self-signed certificates which are needed.

This blog will show you how to create those certificates on the controller and how to get your OPC UA connection up and running in Node-RED.

Installing Node.jsNode-RED and PM2 offline


When using Node.js the easiest way to install everything is by installing the package from the PLCNext Store. From then on you can install all needed dependencies with the use of npm (Node Package Manager).

However, in some cases you won’t be able to connect the PLC to the store in order to get the software you wish to install. In what follows you will learn how to install Node.jsNode-RED and PM2 offline. Once installed you will be able to run locally installed packages on the controller.

All preparations that are needed in order to prepare all packages for offline installation are carried out on a Linux host.

The AXC F XT IB ( article nr. 2403018) module is a left side connectable module for the AXC F 2152, that allows you to use interbus modules with the PLC next controller.


If you are interested I can provide you an example PLCnext project (see email link below this blog), this uses the 'Auto Reading functionality' to detect the modules that are connected on the interbus.

A certain amount of possible interbus modules is already integrated in the 'Physical_IBS_ILC' Function block, but further in this makersblog I will explain how you can add more interbus devices for your own project to this FB.

This article describes how the SQLite database engine allready installed on PLCnext Controllers could be used to store data provided via the Global Data Space (GDS). The database enables the storage of process data in a standardized way and could be exportet to other systems with SFTP. 


The Sample Runtime C++ project on Github has been updated with more features and a completely new documentation structure. The project now includes a step-by-step "getting started" guide to building your own runtime for PLCnext Control in C++, starting with a simple "Hello PLCnext" application.

The term "runtime" is used to describe a specific type of PLCnext application. PLCnext runtime applications usually provide an alternative to the real-time control components provided by the Automation Runtime Platform (ARP) - i.e. the Execution and Synchronisation Manager (ESM) and the Embedded Common Language Runtime (eCLR).

Check out the project on Github, and let us know what you think.

UPDATE (16.07.2020): The PLCnext Store app mentioned in this article is no longer maintained, but the source code for the app will continue to maintained in Github.


A new PLCnext Engineer library app has been added to the PLCnext Store - Bus Conductor

This app can be used to configure a local PLCnext Control I/O bus, containing either Axioline or Inline I/O modules, without the need to hard-code the specific I/O configuration either directly in .tic files, or indirectly using PLCnext Engineer.

This app can be used in any application where the precise I/O configuration is not known at design-time, or must be changed dynamically at run-time. Examples include: