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P004070: No matching bus port (output) at the predecessor address '<y>' was found for the bus port (input) at '<x>'

Cause

You use the PLC import interface Beckhoff TwinCat: No bus port (output) was found for a bus port (input) at the device <x> named in the message during importing. The matching bus port (output) is always searched for at the predecessor address <y>.

Solution

  1. Check whether a bus port (output) exists for the bus port (input) of the device <x> named in the message at the predecessor address <y>.
  2. Import the PLC data again.

Note:

Using a new check run (any desired scheme) this module-specific message can be deleted from the message management dialog.