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.
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Device-specific OPC UA settings and limitations OPC UA server The PLCnext Technology controllers have the following device-specific default OPC UA settings: Target Maximum number of sessions Minimum supported sample rate Available sample rates AXC F 1152 3 100 100, 250, 500, 1000, 2000, 5000 AXC F 2152… 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… 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 Services The eUA Server provides these IEC 62541-4 compliant services to client applications: Discovery Secure channel Session Monitored item and subscription • Web browser recommendation: Chrome/Edge 88 or newer, Firefox ESR 90 or newer, or Safari • • Published/reviewed: 2023-08-25 • Revision 058 • … Read More
Alias Names Available from 2022.6 The eUA Server supports Alias Names according to the OPC UA specification OPC 10000-17 – Part 17: Alias Names. The functionality of Alias Names is to reference one or multiple nodes in a server address space using a custom name. The eUA… Read More
Reverse Connect Available from firmware version 2022.9 What problem should be solved In some automation applications the PLCnext device is connected to the internet. In this case, a basic security requirement is to reduce the open ports to prevent attacks from the internet. The Reverse Connect… Read More
OPC UA session Creation The eUA server supports a limited amount of concurrent sessions depending on the controller type (Device-specific OPC UA settings). The server verifies the ClientCertificate for secure endpoints when creating a session. Make sure that the ApplicationURI specified in the ApplicationDescription matches the… Read More
Introduction to information models The PLCnext Technology eUA server provides these IEC 62541-5 compliant information models: External information models Alarms and conditions Device information Historical data access File access Global Data Space Common OPC UA terminology This topic describes some common OPC UA… Read More
Device-specific OPC UA settings The PLCnext Technology controllers have the following device-specific OPC UA settings: Target Maximum number of sessions Minimum supported sample rate Available sample rates AXC F 1152 3 100 100, 250, 500, 1000, 2000, 5000 AXC F 2152 5 100 100,… Read More
OPC UA Historical Access (HA) Available from 2019.6 Standard OPC UA HA enables the OPC UA clients to access the historical data of the PLCnext Technology DataLogger. You can call selected variables from a database using OPC UA HA. To use OPC UA HA for the data of GDS variables, the variables must be present in at least one… Read More
