An industrial control design and testing system allows vendor-specific digital twins of industrial robots to be imported into a vendor-agnostic simulation platform so that coordinated operation of the robots within the context of a larger automation system can be simulated and observed. Rather than requiring a designer to re-write the robot program in a format understandable by the simulation system, the design and testing system can link to instances of the vendor-specific robot simulation platforms to facilitate execution of the actual robot programs that will be installed and executed on the corresponding physical robots. This accurately simulates operation of the robots in a manner that requires less development work on the part of the designer and allows the robot's surrounding environment to be modeled and simulated more accurately than would be the case using a simulation platform specific to a particular robot vendor.