FAQ - Frequently Asked Questions

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1.	What is a real-time simulation?

In a real time simulation the simulation time step is equal to the real time step.

From Wikipedia:

"Real-time computing (RTC) is the study of hardware and software systems which are subject to a "real-time constraint"—i.e., operational deadlines from event to system response. By contrast, a non-real-time system is one for which there is no deadline, even if fast response or high performance is desired or even preferred. The needs of real-time software are often addressed in the context of real-time operating systems, and synchronous programming languages, which provide frameworks on which to build real-time application software.

A real time system may be one where its application can be considered (within context) to be mission critical. The anti-lock brakes on a car are a simple example of a real-time computing system — the real-time constraint in this system is the short time in which the brakes must be released to prevent the wheel from locking. Real-time computations can be said to have failed if they are not completed before their deadline, where their deadline is relative to an event. A real-time deadline must be met, regardless of system load."

2.	What do I have to install?

In the majority of cases the SCALE-RT Simulator consists of the following:

Target Computer - Linux

Host Computer - Windows (or Linux)

Target computer

On the target computer you must install the provided LINUX distribution from the LIVE-CD.

Host Computer

On default following programs will be installed

	SCALE-RT Suite	Tool to control and maintenance the real-time target PCs
	SCALE-RT Insight	Tool to create easily graphical user interfaces
	LabVIEW API	Library for designing you own VI with Labview (only Opus)
	C-Files	DLL for the MDI-Communication (only Opus)

Depending of your selected simulation tool, following can be installed

	Scilab® / Scicos®	Free scientific numerical environment from INRIA®
	SCALE-RT Scilab® extension	Required to build real-time binaries out of Scicos®
	SCALE-RT Matlab® extension	Required to build real-time binaries out of Simulink®
	SCALE-RT SimulationX® extension	Required to build real-time binaries out of SimulationX®

The delivered Cygwin environment must be installed to use the extensions for all simulation tools.

3.	How many targets can I run with one license?

Each target needs its own license file / key.