Modbus VIs Show "Owning Library Has Blocked Execution" Error

Updated Oct 7, 2019

Reported In


  • LabVIEW Real-Time Module

Issue Details

I am using the Modbus API that installs with the LabVIEW Real-Time Module or the LabVIEW Datalogging and Supervisory Control (DSC) Module. Whenever I try to use one of the VIs, I get an error saying Owning library has blocked execution of the VI. What can I do about this error?


This error is usually caused by a failed installation of the LabVIEW Module that you got the Modbus API from (DSC or LabVIEW Real-Time). It can usually be resolved by repairing the installation .