OPC UA client Available from 2023.0 LTS The OPC UA client supports subscribing variables from connected servers and writing changes of local variables to connected servers. The PLCnext device establishes the connection automatically as soon as the server is available. When the connection gets lost, the OPC UA… Read More
OPC UA secure channel The eUA server supports client communication over encrypted endpoints by default. To configure the endpoints, refer to OPC UA endpoint configuration. Client application authentication The eUA server supports client certificate authentication over secure endpoints by default. The certificates of OPC UA clients… Read More
OPC UA alarms and conditions Alarms You can exchange alarm and status messages between a program and the eUA server. For all details, please refer to the Alarms via OPC UA section. • Published/reviewed: 2024-08-08 ☀ Revision 071 • … Read More
Profile and facets The eUA Server implements the Embedded 2017 UA Server Profile and supports the following facets: Facets: Global Certificate Management Server Facet Historical Raw Data Server Facet A & C Alarm Server Facet File Access Server Facet DI BaseDevice… 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
Connection configuration Note: The OPC UA client and server use the OpenSSL library to validate X.509 certificates using the OpenSSL flag X509_V_FLAG_X509_STRICT. As firmware 2024.0 LTS is updated to OpenSSL 3.0, the X.509 certificate validation became more strict, especially for non self-signed certificates. This may cause the server to return… Read More
Quickstart OPC UA server configuration Tutorial video Note: Tutorial videos are embedded from the Phoenix Contact Technical Support YouTube channel. With playing an embedded YouTube video in this platform, you accept the YouTube Terms & Conditions. Even showing the video previews on this page depends on your personal settings… Read More
OPC UA Server On request, an OPC UA server provides an OPC UA client with process data and variable values from a running application. The PLCnext Control devices contain an embedded OPC UA server (eUA). In addition to the runtime, it is integrated in the controller. It enables access to components, programs, function blocks, structures and… Read More
OPC UA features Here’s an overview to the OPC UA features and when they were implemented into PLCnext Technology: OPC UA Server Firmware version 2019.0 LTS 2020.0 LTS 2021.0 LTS 2022.0 LTS 2022.3 2022.6 2022.9 2023.0 LTS… Read More
Firmware and project update with OPC UA using UaExpert Available from firmware version 2022.0 LTS This topic shows how to update a project or the firmware of a PLCnext device using the OPC UA sample client UaExpert. Note: To perform the following steps the user role SoftwareUpdate or Admin is required. Read More
