OPC-UA Client FUNCTION BLOCKS for IEC61131-3
Hanover, Germany 09.04.2014: In October 2008 the cooperation between PLCopen and OPC Foundation started with a kick-off to map the IEC 61131-3 Software Model to the OPC UA information model, which was released in March 2010 by both organizations. The basis was provided by the OPC UA Client – Server architecture for which the server is integrated in or connected to the controller with a link to the extended program and controller information as provided by the PLCopen / IEC 61131-3 mapping.
From the beginning it was clear that the mapping of IEC61131-3 into OPC UA server in the controller was only the first step. So in 2011 the working groups initiated the next step by adding the OPC UA client functionality in the controller by defining a set of Function Blocks for IEC61131-3. This specification has been released on April 3rd 2014.
Read the full press release with diagrams included here.