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 variables of PLCnext Technology.
Client-Server communication
Services
The PLCnext Technology eUA Server provides IEC 62541-4 compliant services to client applications:
Information models
The PLCnext Technology eUA server provides IEC 62541-5 compliant information models:
- External information models
- Alarms and conditions
- Device information
- Historical data access
- File access
- Global Data Space
Tutorial - OPC UA setup for PLCnext Control
This tutorial video explains how to configure a secure OPC UA server and client communication on PLCnext Control. It features the following topics:
- Configure the OPC UA server in a PLCnext Engineer project
- Check the OPC UA server configuration with the UaExpert reference client
- Create the OPC UA client in a PLCnext Engineer project
- Map the variables
- Activate the OPC UA client feature
- Where to get a permanent license
- Set up the certificate authentication on both devices
- Check for proper notifcations
- Test the communication with a variables roundtrip
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16m:16s |  |
HDTV 720p |  |
English |  |
English |