Software-in-the-Loop Simulation

Software-in-the-loop simulation with ISG-virtuos

Machines and plants created in ISG-virtuos can be put into operation with various software control systems. For example, the simulation model can be connected via TCP/IP to a software controller such as KUKA.OficeLite, PLCSIM Advanced, ABB RobotStudio or SINUMERIK ONE. This creates an SiL test setup on which the control software can first be developed and then extensively tested.

The simulation model does not differ from a MiL or HiL setup, only the type of connection is changed. Thus, hybrid scenarios with different controllers and control types are of course also possible.

Setup and use of a virtual test setup

Source: VDMA Virtual Commissioning Guide

Virtual commissioning requires executable simulation models of a component, machine or plant. The simulation models represent the following relationships, among others:

Process logic
Kinematics
Material flow
Physical effects
Seonsors and actuators
(Bus) communication

The control system is not integrated into the simulation model, but linked to the simulation. The virtual test setup, i.e. the linking of the simulation model with the control system, is called an X-in-the-loop system (XiL system). With the use of XiL systems, the following advantages are achieved compared to a real test setup:

Lower costs during setup
Less effort for continuous reconfiguration
No use of physical resources (e.g. assembly or hall space)
No wear and tear and no damage to operating equipment

The characteristics of XiL are differentiated based on the type of control in:

Model-in-the-loop (MiL): the control software is mapped in a model language.
Software-in-the-loop (SiL): the control software runs in an emulation.
Hardware-in-the-loop (HiL): the control software runs on the real hardware of the controller.

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Software-in-the-Loop (SiL)

Software-in-the-loop simulation with ISG-virtuos

Setup and use of a virtual test setup