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ABENMESH_SET_ASSOCIATION_ABEXA - MESH SET ASSOCIATION ABEXA

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- Setting Mesh Associations for Mesh Paths

This example demonstrates how mesh associations are set for mesh paths.

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Description

This example shows how, in a mesh node mesh-node2 that is the target node of the mesh association _node2 of a mesh node mesh-node1 and is the start node of a mesh association _node3 with the mesh node mesh-node3, values can be set that match the existing values in mesh-node3. The statement SET ASSOCIATION is used in two variants here:

• In the first case, a mesh path with just one initial mesh association is used:

SET ASSOCIATION mesh-node2\_node3[ line2> ] = mesh-node3[ 1 ]

The statement SET ASSOCIATION sets the column col3 in the structure specified in the square brackets. Here, a field symbol is used that points to a line inserted previously in mesh-node2. The values to be set are taken from the follow-on node mesh-node3 using a table expression. The subsequent read performed on the same mesh path demonstrates that this path now describes the required data in mesh-node3.

• In the second case, a mesh path with a path extension is used:

SET ASSOCIATION mesh-node1\_node2[ root ]\_node3[ ] = mesh-node3[ 2 ].

The result of the mesh path up to the node mesh-node2 describes two existing lines. In these lines, the column col3 is again set to values from the follow-on node mesh-node3. Again, the subsequent read performed on the same mesh path demonstrates that this path describes the corresponding data in mesh-node3, with the duplicate line only being respected once.

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