Beckhoff CX20 2 Series, Manual

Page: 54 / 77

NOVRAM
CX20x2 54 Version: 1.7
4. Under Retain Hdl , select the Retain Handler that you have created.
ð After selecting a Retain Handler as a target, the symbols in the tree view are linked and a mapping is
created.
In the tree view the variables are created from the PLC under the Retain Handler and linked to the
variables from the PLC instance.
An existing link is displayed with an arrow symbol.