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Semantic Error (SEM1023): The label '...' does not exist.

To form a valid jump in FBD/LD, one or more jump objects (which is/are read within the graphical code network) and exactly one label (which is written within the graphical code network) with the same name are required. Jumps are also possible between different worksheets of the same POU.
In NOLD code worksheets, only the network label in the horizontal bar at the top of each code section can be used as jump label. No manual labels can be inserted in NOLD.

In an FBD worksheet or in a POU (with several worksheets), a label is missing as target for an existing jump.

Complete the network by inserting a label object relating to the jump object.