# ID 40019

Pointer to structure containing information about the HLI specification is 0.
Description | A PLC application that communicates with the motion controller via interface HLI has to call one instance of function block MCV_HliInterface. This FB checks if definition of the interface HLI is the same at the side of the PLC and the side of the motion controller.

Therefore, this FB requests information from motion controller via the implemented interface HLI.

When the FB receives no information after the request, the FB MCV_HliInterface issues this error message at its output "ErrorID" for the PLC application.

Response | Class | - | FB MCV_HliInterface sets his “Error” output to TR FB MCV_HliInterface sets his output “Error” to TRUE and output “Initialized” to FALSE. UE, and “Initialized” output to FALSE.
Solution | Class | - | Please contact the motion control supplier and indicate the error number.
Error type | -