Button “Link To PLC…”
Connecting a PLC project
There is cyclic communication from the NC to the PLC and vice versa. NC axes must be linked with the PLC in order to set up this communication.
Opening the dialog Select Axis PLC Reference…

- An axis variable of the type
AXIS_REF
has been created in a PLC project. - The PLC project with the axis variables of the type
AXIS_REF
has been successfully created.
Only axis variables whose PLC project has been successfully created after their declaration are displayed in the dialog Select Axis PLC Reference…. - The text box to the right of the Link To PLC… button [3] shows the axis variables of the type
AXIS_REF
with which the axis selected in the NC configuration is linked. - If you wish to change this link, create a link or cancel a link:
- 1. Open the Settings dialog for the axis inside the NC configuration that you wish to link with an axis variable of the type
AXIS_REF
or whose link you wish to cancel. - 2. Actuate the Link To PLC… button [3].
- The dialog Select Axis PLC Reference… opens.
Selecting an axis variable

- 1. Use the Unused option box [1] to display all unlinked axis variables of the type
AXIS_REF
in the list box. - 2. Use the All option box [2] to display all axis variables of the type
AXIS_REF
in the list box. In this way it is possible to change existing configurations. - 3. In the list box, select the axis variable [3] of the type
AXIS_REF
with which you wish to link the axis selected in the NC configuration. - 4. Select the entry (none) [4] if you do not wish to link any axis variable or if you wish to cancel an existing link to an axis variable.
- 5. Confirm your selection with the OK button [5].
- The axis selected in the NC configuration is linked according to your choice.