Alarm function blocks in IEC 61131-3 programming Introduction Essential alarm status features Every alarm is oriented towards the OPC UA Alarms & Conditions specification and has these properties: Property Meaning or purpose Restrictions AlarmId The unique name of the alarm on the device. … Read More
Functions and applications – Overview Functions and applications are built-in benefits for programmers that come with the PLCnext Runtime System. Depending on the firmware release on your PLCnext Control, the set of features can be different. Here you will find a description to every function or application: Notifications Alarms Real-time… Read More
Introduction to Applicative System Redundancy (ASR) Available with AXC F 2152 and AXC F 3152 The Applicative System Redundancy (ASR) is carried out by providing two redundant PLCs (First and Second) in the same network together with the responding I/O stations. The communication between the PLCs and the I/O stations is based on the PROFINET… Read More
Alarms via OPC UA Server Introduction Essential alarm status features Every alarm is oriented towards the OPC UA Alarms & Conditions specification and has these properties: Property Meaning or purpose Restrictions AlarmId The unique name of the alarm on the device. AlarmType… Read More
Security notifications registered by the PLCnext Runtime System Available from 2022.0 LTS The following tables show the security-related notifications that are predefined in the PLCnext Runtime System and will be issued by the PLCnext Runtime System. Note: For non-security-related notifications, see Notifications by PLCnext Runtime. Compatibility Due to breaking changes… Read More
Notification Logger Use Case The Notification Logger enables saving of notifications in a database so the they can be used for analyzing firmware and applications. Saved notifications can be queried via RSC interfaces. The Logger Archives offer functions for acquiring and filtering of incoming notifications as well… Read More
PLCnext Store resources The PLCnext Store provides software applications (“apps”) with which you can directly and easily expand the functions of a PLCnext controller. As a developer of software solutions, you can also create your own apps and distribute them in the PLCnext Store. About 300 highly elaborated pieces of code… Read More
Real-time DataLogger reference Available from firmware 2019.6 Sources and data types The DataLogger can record data from any IN or OUT ports and variables. The following data sources are available: Global Data Space IN and OUT ports Type real-time program (C++, IEC 61131-3 and MATLAB®/Simulink®) – task-synchronous mode… Read More
Configuring PROFINET devices for redundancy Available from 2022.0 LTS with RFC 4072R Adding PROFINET devices to the automation project For for the general procedure Configuring PROFINET devices. Configure the System redundancy data hold time for each PROFINET device. The System redundancy data hold time is the maximum time that the PROFINET device… Read More
System redundancy with RFC 4072R Available from firmware 2022.0 LTS with RFC 4072R The RFC 4072R is a high-availability PLCnext Control with explicit redundancy functionality. Some commissioning steps differ from those for other PLCnext Control devices. In the course of the system redundancy with RFC 4072R, we describe only these differences. From firmware release 2025.6, RFC 4072R controllers can be connected to… Read More
