Using gRPC communication in PLCnext Technology Short introduction to gRPC gRPC is a modern open source high performance Remote Procedural Call (RPC) framework. Initially developed at Google and now lead by the Cloud Native Computing Foundation. It is very flexible and user-friendly, it can easily put in communication… Read More
Update via OPC UA® using UaExpert Available from firmware version 2022.0 LTS. From firmware 2025.0 or newer updates can also be performed via WBM, see Updating apps and firmware This topic shows how to update a project or the firmware of a PLCnext Control device using the OPC UA® sample client UaExpert. Note: To perform… Read More
OPC UA device information The Device Integration (DI) namespace In compliance with the “OPC UA for Devices” OPC UA Companion Specification, the eUA server provides the following nodes: Node Meaning DeviceManual Path or URL to the user manual. DeviceRevision General revision status of… Read More
OPC UA PubSub Available from firmware 2022.0 LTS on all PLCnext Control devices Configurable in PLCnext Engineer from software release 2022.0 LTS Starting with firmware 2022.0 LTS, the PLCnext Technology firmware has an implementation of the OPC UA® Publish and Subscribe specification (PubSub) as a new communication protocol. This enables the data exchange in a… Read More
Further information on OPC UA® in PLCnext Technology See these additional topics for further reference: Profile and facets shows all currently implemented facets, linked to the respective specifications Feature roadmap OPC UA shows which OPC UA® feature was implemented with which PLCnext Technology firmware release. Device-specific OPC UA settings shows the differences in… Read More
Module configuration of the OPC UA client The OPC UA client can be configured in PLCnext Engineer from version 2023.3. We recommend to use PLCnext Engineer for the configuration (see also Tutorial – OPC UA setup for PLCnext Control). The configuration can also be performed using an additional… Read More
RSC IDataLoggerService2 Available from 2020.6 Introduction The DataLogger is a service component that transfers real-time data from the GDS to a database for recording and storage purposes. When starting and stopping the PLCnext Technology firmware, a configured DataLogger session is started and stopped automatically. The DataLogger then collects… Read More
Communication interfaces – Overview The PLCnext Runtime System comes with built-in communication interfaces. Depending on the firmware release on your PLCnext Control, the set of features can be different. Here you will find a description to every communication interface: OPC UA® Server OPC UA® Client OPC UA® PubSub Remote Service Calls (RSC)… Read More
REST data interface – Collections and dictionaries Available from firmware 2019.9 This topic shows how to retrieve the dictionaries for the REST data interface, and gives exemplary postman collections for the commands that are described thoroughly in the respective topics. Note: Phoenix Contact reserves the right to make changes and additions in further versions… Read More
REST data interface – Requests Overview to the requests The following table summarizes the requests and their responses that are detailed in separate sections or topics. Command HTTP method Relative URI for PLCnext Control Query Parameters Response Service Description GET /_pxc_api/api… Read More
