NORD Drivesystems BU0550 - Manual (Page 14)

PLC logic for NORD SK 54xE frequency inverters
14 BU 0550 GB-0813
2 Creation of PLC programs
Creation of PLC programs is carried out exclusively via the PC program NORDCON. The PLC editor is
opened either via the menu item "File/New/PLC program" or via the symbol . This button is only active if
a frequency inverter with PLC functionality forms the focus of the device overview.
2.1 Loading, saving and printing
The functions Load, Save and Print are carried out via the appropriate entries in the main menu or in the
symbol bars.
When opening, it is advisable to set the data type to "PLC Program" (*.awl / *.awlx) in the Windows dialog.
With this, only files which can be read by the PLC editor are displayed.
If the PLC program which is created is to be saved, the Windows window of the PLC editor must be active.
The PLC program is saved by actuating "Save" or "Save as". With the operation "Save as", this can also be
recognised by the data type (540E PLC (*.awlx)).
The appropriate PLC window must be active in order to print the PLC program. Printout is then started via
"File/Print" or the appropriate symbol.
2.2 Editor
The PLC Editor is divided into four different windows.
Fig. 4 PLC Editor
The individual windows are described in more detail in the following sections.
Input window
Variables and FB
declaration
Watch and Breakpoint
display window
PLC message
window