dl-breadcrumbs__homedl-breadcrumb-item__separatorConfiguration and programmingdl-breadcrumb-item__separatorConfiguration in Automation Builderdl-breadcrumb-item__separator...dl-breadcrumb-item__separatorServer installationdl-breadcrumb-item__separatorOPC UA serverdl-breadcrumb-item__separatorGeneral
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General

OPC UA server can be added as an object below the Ethernet interfaces ETH1 or ETH2.

The user can access the variable interface of the PLC via a client. At the same time, communication can be protected by means of encryption.

The CODESYS OPC UA server supports the following features:

  • Browsing of data types and variables

  • Standard read/write services

  • Notification for value changes: subscription and monitored item services

  • Encrypted communication according to "OPC UA standard (profile: Basic256SHA256)"

  • Imaging of the IEC application according to "OPC UA Information Model for IEC 61131-3"

  • Supported profile: Micro Embedded Device server Profile

  • By default, there is no restriction in the number of sessions, monitored items, and subscriptions. The number depends on the performance of the respective platform.

  • Sending of events according to the OPC UA standard.

Application note

How to install and configure an OPC V2 or OPC V3 server and how to use it for AC500 PLCs is described in the application note ‎⮫ How to use OPC server.

Application example

To gain a deeper understanding of the OPC protocol and to configure the PLC accordingly, an ‎⮫ application example is available.